| 1A-CERT (FR) | France | Accredited (since 16 Sep 2022) |
| 2CCSIRT (CZ) | Czech Republic | Listed (since 02 Jun 2022) |
| A2A-CERT (IT) | Italy | Accredited (since 24 May 2022) |
| AC SOC (SK) | Slovakia | Listed (since 15 May 2024) |
| AC-CSIRT (CZ) | Czech Republic | Accredited (since 13 Mar 2024) |
| ACD-TRC (ES) | Spain | Accredited (since 09 Apr 2024) |
| ACN IBE CSIRT | Spain | Listed (since 16 Apr 2021) |
| ACOnet-CERT | Austria | Accredited (since 28 Mar 2003) |
| ACTIVE24-CSIRT (CZ) | Czech Republic | Listed (since 31 May 2022) |
| AEC | Austria | Certified (since 30 Jun 2020) |
| AKCESK/NAECCS (AL) | Albania | Accredited (since 27 May 2020) |
| ALEF-CSIRT | Czech Republic | Certified (since 16 Jul 2020) |
| ALPHS-SOC (CZ) | Czech Republic | Listing Candidate (since 29 Apr 2025) |
| AM-CERT (AM) | Armenia | Accredited (since 04 Jan 2024) |
| AMC-CERT | Netherlands | Listed (since 19 Mar 2020) |
| AMRES-CSIRT (RS) | Serbia | Listed (since 14 Jun 2022) |
| AR-CSIRT (PT) | Portugal | Accredited (since 21 Feb 2023) |
| ASNET-CERT (AM) | Armenia | Listed (since 12 Jun 2023) |
| ATS-CSIRT (CZ) | Czech Republic | Accredited (since 02 Sep 2024) |
| AUTH-CERT (GR) | Greece | Listed (since 22 May 2022) |
| AXA CERT (FR) | France | Listed (since 06 Mar 2023) |
| AXENTA CSIRT | Czech Republic | Accredited (since 25 Feb 2019) |
| Ai CERT | France | Accredited (since 27 May 2015) |
| Aiuken CSIRT (ES) | Spain | Listed (since 20 Dec 2022) |
| AndaluciaCERT | Spain | Accredited (since 14 May 2018) |
| AzScienceCERT (AZ) | Azerbaijan | Accredited (since 30 May 2011) |
| BARIKAT-CSIRT | Turkey | Accredited (since 03 Mar 2022) |
| BASF gCERT | Germany | Accredited (since 21 Nov 2022) |
| BBN-SIRT | Sweden | Listed (since 15 Sep 2022) |
| BCR CERT (RO) | Romania | Accredited (since 04 Jan 2024) |
| BELNET CERT | Belgium | Accredited (since 14 Sep 2004) |
| BF-SIRT | Sweden | Accredited (since 19 Jun 2017) |
| BGD e-GOV CIRT | Bangladesh | Accredited (since 28 Nov 2018) |
| BSS-CERT | Romania | Accredited (since 14 Apr 2021) |
| BTCERTCC | United Kingdom | Listed (since 25 Oct 2024) |
| Bayern-CERT (DE) | Germany | Accredited (since 15 Jul 2022) |
| BeSOC Madrid (ES) | Spain | Accredited (since 01 Mar 2023) |
| BeSOC-Roma (IT) | Italy | Accreditation Suspended (since 07 Dec 2024) |
| Binconf CDC (SK) | Slovakia | Accredited (since 20 Sep 2018) |
| Bosch CERT and PSIRT (DE) | Germany | Listed (since 22 May 2022) |
| Botswana-CSIRT (BW) | Botswana | Accredited (since 30 Aug 2024) |
| CARICERT | Curacao | Accredited (since 26 May 2014) |
| CASABLANCA.CZ-CSIRT | Czech Republic | Re-Listing Candidate (since 21 May 2025) |
| CATALONIA-CERT (ES) | Spain | Accredited (since 25 Dec 2010) |
| CCN-CERT | Spain | Accredited (since 25 Jan 2008) |
| CDC AEC (CZ) | Czech Republic | Certification Candidate (since 14 Jun 2024) |
| CDT-CERT (CZ) | Czech Republic | Accreditation Candidate (since 15 Oct 2024) |
| CDT-SOC (CZ) | Czech Republic | Listed (since 06 May 2025) |
| CERN CERT (CH) | Switzerland | Listed (since 08 Jul 2022) |
| CERT ACL (PL) | Poland | Accredited (since 22 Jun 2023) |
| CERT ALLEGRO | Poland | Accredited (since 21 Oct 2019) |
| CERT ATOS-FR (FR) | France | Accreditation Suspended (since 01 Oct 2023) |
| CERT Alior | Poland | Accredited (since 26 Aug 2019) |
| CERT Atos (PL) | Poland | Listed (since 09 Sep 2024) |
| CERT Axians (FR) | France | Listed (since 01 Aug 2022) |
| CERT BIK | Poland | Accredited (since 20 Nov 2020) |
| CERT BWI | Germany | Certified (since 21 Oct 2015) |
| CERT Bulgaria | Bulgaria | Accredited (since 12 Jul 2009) |
| CERT CM EI (FR) | France | Accredited (since 17 Oct 2022) |
| CERT Credit Agricole | France | Certified (since 08 Sep 2021) |
| CERT ENEA (PL) | Poland | Accredited (since 13 Dec 2022) |
| CERT Groupe BPCE | France | Accredited (since 03 May 2019) |
| CERT IT-PKP (PL) | Poland | Accredited (since 22 Nov 2022) |
| CERT KredoBank | Ukraine | Re-Listing Pending (since 21 Feb 2025) |
| CERT La Poste | France | Accredited (since 27 Mar 2015) |
| CERT Michelin (FR) | France | Listed (since 14 Jun 2023) |
| CERT NRW (DE) | Germany | Accredited (since 17 Mar 2025) |
| CERT OPL | Poland | Certified (since 14 Mar 2016) |
| CERT ORLEN | Poland | Accredited (since 26 Feb 2021) |
| CERT OSIRIS (FR) | France | Listed (since 29 Apr 2025) |
| CERT Orange Cyberdefense | France | Accredited (since 21 Sep 2009) |
| CERT Orange Romania (RO) | Romania | Accredited (since 10 May 2024) |
| CERT PKO BP | Poland | Certified (since 28 Jan 2020) |
| CERT POLSKA | Poland | Certified (since 23 Sep 2020) |
| CERT PSE | Poland | Re-Certification Candidate (since 10 May 2022) |
| CERT Pocztowy (PL) | Poland | Listed (since 15 May 2025) |
| CERT RATP (FR) | France | Listed (since 17 Feb 2025) |
| CERT RS (RS) | Bosnia Hercegovina | Accredited (since 16 Apr 2020) |
| CERT RTE (FR) | France | Listed (since 03 Feb 2023) |
| CERT Radical (EC) | Ecuador | Accredited (since 18 Oct 2024) |
| CERT SG | France | Accredited (since 12 Nov 2018) |
| CERT SysDream (FR) | France | Accredited (since 15 Sep 2022) |
| CERT TMPL | Poland | Accredited (since 31 Aug 2018) |
| CERT mBank | Poland | Accredited (since 03 Nov 2017) |
| CERT-7 (IT) | Italy | Listed (since 19 Nov 2024) |
| CERT-AA (DE) | Germany | Accredited (since 21 Jan 2025) |
| CERT-AGID | Italy | Accredited (since 19 Jul 2016) |
| CERT-AKAOMA (FR) | France | Accredited (since 19 Jul 2024) |
| CERT-AM | Armenia | Accredited (since 13 Jan 2014) |
| CERT-BAM (MA) | Morocco | Listed (since 05 Aug 2022) |
| CERT-BDF | France | Accredited (since 09 Apr 2015) |
| CERT-Bund | Germany | Accredited (since 12 Sep 2012) |
| CERT-C Capgemini Group (FR) | France | Accredited (since 09 Jun 2023) |
| CERT-CDCFR | France | Accredited (since 23 May 2016) |
| CERT-D3LAB (IT) | Italy | Listed (since 05 Aug 2022) |
| CERT-DFi (CH) | Switzerland | Listed (since 19 Jul 2024) |
| CERT-DVT | France | Accredited (since 01 Feb 2011) |
| CERT-EE | Estonia | Certified (since 20 Sep 2017) |
| CERT-ENAV | Italy | Accredited (since 26 Apr 2018) |
| CERT-EU | *European Union | Accredited (since 02 May 2013) |
| CERT-Five9s (FR) | France | Listed (since 30 Jan 2023) |
| CERT-GE | Georgia | Listed (since 22 Apr 2025) |
| CERT-GIB | Singapore | Accredited (since 15 Jan 2013) |
| CERT-GOV-MD | Moldova, Republic Of | Accredited (since 13 Jan 2014) |
| CERT-INN (IT) | Italy | Accredited (since 20 Sep 2023) |
| CERT-IS (IS) | Iceland | Accredited (since 17 May 2023) |
| CERT-In (IN) | India | Accredited (since 13 Sep 2022) |
| CERT-Intrinsec (FR) | France | Listed (since 06 Oct 2022) |
| CERT-KP-RKS | Kosovo, Republic Of | Listed (since 30 Mar 2023) |
| CERT-KSF-RKS (XK) | Kosovo, Republic Of | Listed (since 09 Jul 2024) |
| CERT-MC (MC) | Monaco | Accredited (since 12 Jul 2022) |
| CERT-MCS (MC) | Monaco | Listed (since 14 Nov 2023) |
| CERT-MU (MU) | Mauritius | Certified (since 14 May 2024) |
| CERT-Nameshield (FR) | France | Listed (since 22 May 2022) |
| CERT-P (IT) | Italy | Listed (since 18 Apr 2025) |
| CERT-Post | Switzerland | Accredited (since 21 Oct 2019) |
| CERT-REACK (IT) | Italy | Listed (since 25 Jul 2024) |
| CERT-Renater | France | Accredited (since 30 Sep 2001) |
| CERT-SE (SE) | Sweden | Certified (since 16 Nov 2011) |
| CERT-SNCF | France | Listed (since 01 Nov 2023) |
| CERT-UA | Ukraine | Listed (since 14 Jun 2023) |
| CERT-UAM (ES) | Spain | Listed (since 01 Feb 2023) |
| CERT-UC3M (ES) | Spain | Listed (since 04 May 2023) |
| CERT-UU (NL) | Netherlands | Listed (since 08 Jul 2022) |
| CERT-Ubisoft | France | Accredited (since 07 Jul 2020) |
| CERT-UvA | Netherlands | Re-Listing Candidate (since 21 May 2025) |
| CERT-VW | Germany | Accredited (since 02 Dec 2003) |
| CERT-W | France | Accredited (since 07 Jul 2014) |
| CERT-WM (NL) | Netherlands | Accredited (since 03 Dec 2024) |
| CERT-WuerthPhoenix (IT) | Italy | Accredited (since 17 Apr 2023) |
| CERT-XMCO (FR) | France | Accredited (since 31 Aug 2018) |
| CERT-Yoroi | Italy | Certified (since 29 Dec 2020) |
| CERT-rlp (DE) | Germany | Listed (since 08 Jul 2022) |
| CERT.AZ | Azerbaijan | Accredited (since 20 Jan 2015) |
| CERT.BY | Belarus | Re-Listing Pending (since 28 Feb 2022) |
| CERT.DGA.GOV.GE | Georgia | Accredited (since 24 May 2012) |
| CERT.GOV.AZ | Azerbaijan | Accredited (since 17 Aug 2012) |
| CERT.LV (LV) | Latvia | Certified (since 01 Sep 2016) |
| CERT.NETWORKS.PL (PL) | Poland | Accredited (since 14 Sep 2023) |
| CERT.PT | Portugal | Certified (since 17 Feb 2022) |
| CERT.at | Austria | Certified (since 05 Feb 2018) |
| CERT.be | Belgium | Accredited (since 22 Jan 2010) |
| CERT.br (BR) | Brazil | Accredited (since 31 Mar 2020) |
| CERT.hr | Croatia | Accredited (since 22 Jan 2010) |
| CERT.tg | Togo | Accreditation Candidate (since 29 Oct 2024) |
| CERTBI | Italy | Certified (since 13 Jan 2025) |
| CERTBw (DE) | Germany | Listed (since 22 May 2022) |
| CERTEGO | Italy | Certification Candidate (since 14 Dec 2023) |
| CERTFin (IT) | Italy | Accredited (since 02 Oct 2019) |
| CESNET-CERTS | Czech Republic | Accredited (since 27 Jan 2008) |
| CETIN CSIRT (CZ) | Czech Republic | Listed (since 22 May 2023) |
| CFCS | Denmark | Accredited (since 12 Oct 2011) |
| CIES CSIRT | Spain | Accredited (since 27 Jan 2022) |
| CIPHER-CSIRT | Portugal | Certified (since 10 Dec 2019) |
| CIRCL | Luxembourg | Accredited (since 19 Sep 2011) |
| CIRT.ME | Montenegro | Listed (since 31 May 2022) |
| CORIS-STS | Romania | Accredited (since 30 May 2011) |
| CRA CSIRT | Czech Republic | Listed (since 09 Feb 2023) |
| CRIC AN (MD) | Moldova, Republic Of | Listed (since 09 Mar 2023) |
| CS-CSIRT | Czech Republic | Accredited (since 23 Jan 2019) |
| CSA Global CSIRT (ES) | *European Union | Accredited (since 23 Oct 2024) |
| CSGN-CERT | Romania | Accredited (since 04 Feb 2015) |
| CSI-RT | Italy | Accredited (since 07 Jul 2021) |
| CSIRT BNP Paribas (FR) | France | Listed (since 17 Oct 2022) |
| CSIRT CEDIA | Ecuador | Re-Listing Pending (since 06 Dec 2024) |
| CSIRT CSAS | Czech Republic | Re-Certification Candidate (since 30 Aug 2024) |
| CSIRT EDP (PT) | Portugal | Accreditation Candidate (since 16 Apr 2025) |
| CSIRT FIDELIDADE (PT) | Portugal | Listed (since 24 Aug 2022) |
| CSIRT GIGASERVER.CZ (CZ) | Czech Republic | Listed (since 03 Jan 2025) |
| CSIRT GOV (PL) | Poland | Listed (since 19 Oct 2022) |
| CSIRT JCEKB (CZ) | Czech Republic | Listed (since 08 Jul 2022) |
| CSIRT KNF (PL) | Poland | Accredited (since 07 Jul 2021) |
| CSIRT MON (PL) | Poland | Listed (since 04 Apr 2025) |
| CSIRT MR (PL) | Poland | Listed (since 18 Dec 2024) |
| CSIRT Merit (CZ) | Czech Republic | Listed (since 31 Oct 2022) |
| CSIRT OU (CZ) | Czech Republic | Listed (since 20 Aug 2024) |
| CSIRT SUEZ (FR) | France | Listed (since 14 Oct 2024) |
| CSIRT VF (PT) | Portugal | Listed (since 05 Apr 2023) |
| CSIRT-AD (AD) | Andorra | Accredited (since 17 Apr 2023) |
| CSIRT-BOS (PL) | Poland | Accredited (since 27 Jun 2023) |
| CSIRT-CEZ (CZ) | Czech Republic | Listed (since 04 Apr 2023) |
| CSIRT-CEZ (PL) | Poland | Listed (since 23 Dec 2024) |
| CSIRT-CV | Spain | Accredited (since 27 Sep 2011) |
| CSIRT-DCeGOV (CZ) | Czech Republic | Accredited (since 14 Jan 2025) |
| CSIRT-ECB (EU) | *European Union | Listed (since 22 May 2022) |
| CSIRT-EDERA.CZ (CZ) | Czech Republic | Listed (since 30 Jan 2023) |
| CSIRT-Equans (FR) | France | Accredited (since 12 Mar 2025) |
| CSIRT-FIXPRO (CZ) | Czech Republic | Listed (since 15 May 2025) |
| CSIRT-IE | Ireland | Accredited (since 28 Nov 2017) |
| CSIRT-IT | Italy | Accredited (since 24 May 2022) |
| CSIRT-MU (CZ) | Czech Republic | Re-Certification Candidate (since 10 Jan 2024) |
| CSIRT-NBU (UA) | Ukraine | Accredited (since 16 Jul 2024) |
| CSIRT-NEOSOFT (FR) | France | Accredited (since 20 Jul 2017) |
| CSIRT-NETX | Czech Republic | Re-Listing Candidate (since 16 May 2025) |
| CSIRT-PJ (FR) | France | Listed (since 14 Sep 2022) |
| CSIRT-POST.lu (LU) | Luxembourg | Listed (since 02 Jan 2025) |
| CSIRT-SATEC (ES) | Spain | Accredited (since 13 Nov 2022) |
| CSIRT-SPCSS (CZ) | Czech Republic | Certification Candidate (since 21 Sep 2024) |
| CSIRT-UPJS | Slovakia | Accredited (since 19 Oct 2020) |
| CSIRT-VUT (CZ) | Czech Republic | Accredited (since 18 Sep 2022) |
| CSIRT.CZ | Czech Republic | Certified (since 16 Nov 2018) |
| CSIRT.LI (LI) | Liechtenstein | Listed (since 11 Mar 2024) |
| CSIRT.MIL.SK | Slovakia | Accredited (since 12 Feb 2018) |
| CSIRT.SK | Slovakia | Certification Candidate (since 19 Sep 2024) |
| CSIRT.UMinho (PT) | Portugal | Listed (since 18 Jul 2023) |
| CSIRT.UPORTO | Portugal | Accredited (since 01 Jul 2007) |
| CSIRT.gal | Spain | Accredited (since 10 Aug 2021) |
| CSIRTMalta (MT) | Malta | Listed (since 16 Aug 2022) |
| CSOB SK SOC (SK) | Slovakia | Listed (since 11 Mar 2025) |
| CSOB-Group-CSIRT (CZ) | Czech Republic | Listed (since 02 Jun 2022) |
| CSOC LKPR (CZ) | Czech Republic | Accredited (since 05 Jun 2024) |
| CSOC-ARIA (IT) | Italy | Accredited (since 09 Feb 2024) |
| CSUC-CSIRT | Spain | Accredited (since 13 Jan 2015) |
| CYB-CERT (IT) | Italy | Listed (since 28 Mar 2023) |
| CYBER CIRCLE CSIRT (LV) | Latvia | Accredited (since 17 Apr 2023) |
| CYBERLOOP CSIRT (IT) | Italy | Listed (since 09 May 2024) |
| CYBERSAFE CSIRT (PT) | Portugal | Listed (since 17 Oct 2024) |
| CYMED (RO) | Romania | Accredited (since 05 Feb 2021) |
| CYNET-CSIRT | Cyprus | Accredited (since 19 Aug 2021) |
| CZ.NIC-CSIRT | Czech Republic | Accredited (since 26 Aug 2010) |
| Caixabank CSIRT (ES) | Spain | Accredited (since 13 Jul 2017) |
| Cert-IST | France | Accredited (since 14 Mar 2006) |
| Chalmers IRT (SE) | Sweden | Listed (since 10 Jul 2024) |
| Cisco PSIRT | *World Wide | Listed (since 08 Jul 2022) |
| CiviCERT | *World Wide | Accredited (since 24 Mar 2016) |
| ComCERT (DE) | Germany | Listed (since 19 Jul 2022) |
| ComCERT.PL | Poland | Accredited (since 02 Jun 2016) |
| Computest-CERT (NL) | Netherlands | Accredited (since 30 Nov 2022) |
| Coolhousing CSIRT (CZ) | Czech Republic | Listed (since 22 May 2022) |
| CyBourn CSIRT (RO) | Romania | Listed (since 16 Apr 2024) |
| Cyberpoint CERT (AZ) | Azerbaijan | Accreditation Candidate (since 28 Mar 2025) |
| Cyberzaintza (ES) | Spain | Accredited (since 30 Apr 2021) |
| DB CSIRT | Germany | Listed (since 11 Apr 2024) |
| DBG-CERT (DE) | Germany | Accredited (since 02 Jul 2020) |
| DELOITTE EDC (ES) | Spain | Accredited (since 18 Jul 2023) |
| DFN-CERT | Germany | Re-Certification Candidate (since 03 Jun 2021) |
| DKCERT | Denmark | Certified (since 26 Feb 2024) |
| DNSC | Romania | Accredited (since 09 Mar 2012) |
| Deutsche Telekom CERT | Germany | Certified (since 16 Jul 2020) |
| Dubex IRT (DK) | Denmark | Accredited (since 05 Jul 2024) |
| E.ON CERT | Germany | Accredited (since 13 Oct 2015) |
| E.ON CERT PL | Poland | Accredited (since 31 Aug 2021) |
| EATM-CERT | Belgium | Accredited (since 19 Mar 2020) |
| EC Cybersecurity Operations Centre | *European Union | Accredited (since 15 Nov 2019) |
| EDF CIRC | Estonia | Accredited (since 10 Jun 2016) |
| EGI CSIRT | *Europe | Certified (since 02 Oct 2014) |
| EL-CSIRT (IT) | Italy | Accredited (since 05 Jan 2024) |
| ENERGOTEL.SK-CSIRT | Slovakia | Accredited (since 13 Nov 2022) |
| ENGIE CERT (FR) | France | Listed (since 19 Apr 2023) |
| ENOC-CSIRT (ES) | Spain | Accredited (since 21 Jun 2022) |
| ERIS-CERT (ES) | Spain | Accredited (since 25 Jun 2018) |
| ESACERT | *Europe | Certified (since 30 Apr 2021) |
| ESP DEF CERT | Spain | Accredited (since 18 Jul 2013) |
| ETDA (TH) | Thailand | Accredited (since 01 Oct 2015) |
| ETH CSIRT (CH) | Switzerland | Re-Certification Candidate (since 24 Feb 2021) |
| EXN-GSOC (BE) | Belgium | Certified (since 10 Jan 2024) |
| EY CSIRT (FR) | France | Accredited (since 16 Nov 2022) |
| EY CSIRT (PL) | Poland | Listed (since 22 May 2022) |
| Easi-CERT (BE) | Belgium | Listing Candidate (since 24 Apr 2025) |
| EduCSIRT.hu | Hungary | Re-Listing Pending (since 18 Sep 2022) |
| EkomCERT (NO) | Norway | Listed (since 06 Oct 2022) |
| EnBW-CERT (DE) | Germany | Listed (since 09 Aug 2024) |
| Enel CERT (IT) | Italy | Accredited (since 29 May 2018) |
| Ericsson PSIRT | Finland | Accredited (since 25 Nov 2005) |
| Eurofins SOC (PL) | Poland | Accredited (since 14 Nov 2023) |
| Euronext CSIRT | Portugal | Accredited (since 18 Dec 2019) |
| Eviden SOC-CERT (CZ) | Czech Republic | Listed (since 16 Aug 2024) |
| Evolutio-CERT (ES) | Spain | Listed (since 22 May 2022) |
| Evonik CDT (DE) | Germany | Listed (since 22 May 2022) |
| ExaCERT (PL) | Poland | Accreditation Candidate (since 22 Apr 2025) |
| FASTER-CSIRT (CZ) | Czech Republic | Listed (since 16 Sep 2023) |
| FIN-CSIRT (RS) | Serbia | Listed (since 22 Apr 2025) |
| FORPSI-CSIRT (CZ) | Czech Republic | Listed (since 19 Jul 2022) |
| FORTHcert (GR) | Greece | Listed (since 08 Nov 2023) |
| FS-CERT (IT) | Italy | Accreditation Suspended (since 30 Sep 2024) |
| FUJITSU CyberTrust Center (ES) | Spain | Listed (since 01 Feb 2023) |
| FoxCERT | Netherlands | Accredited (since 01 Oct 2014) |
| Fujitsu CSIRT-PT (PT) | Portugal | Listed (since 23 Dec 2024) |
| Funet CERT | Finland | Accredited (since 21 Apr 2002) |
| G-SIRT | Italy | Accredited (since 07 Feb 2020) |
| GALP CSIRT (PT) | Portugal | Listed (since 17 Jul 2023) |
| GARR-CERT (IT) | Italy | Accredited (since 01 Jan 2001) |
| GAZ-SYSTEM CERT | Poland | Re-Certification Candidate (since 02 Sep 2024) |
| GC-CSIRT (SE) | Sweden | Accredited (since 23 Aug 2023) |
| GEANT CERT | *Europe | Certified (since 22 Jun 2015) |
| GMV-CERT (ES) | Spain | Listed (since 29 Jan 2024) |
| GOV CERT SK (SK) | Slovakia | Listed (since 24 Apr 2025) |
| GOV CERT/CSIRT (AM) | Armenia | Listed (since 28 Dec 2022) |
| GOVCERT.CZ | Czech Republic | Accredited (since 21 Aug 2014) |
| GOVCERT.LU | Luxembourg | Certified (since 26 Sep 2024) |
| GOVCERT.RS (RS) | Serbia | Listed (since 14 May 2024) |
| GRAIL-CSIRT (ES) | Spain | Accredited (since 28 Jul 2023) |
| GRNET-CERT | Greece | Accredited (since 07 Apr 2003) |
| GTN-CERT (ES) | Spain | Listed (since 06 Feb 2024) |
| Gen CERT (CZ) | Czech Republic | Accredited (since 14 Dec 2020) |
| GovCERT Austria | Austria | Accredited (since 29 Jun 2021) |
| GovCERT.ch | Switzerland | Accredited (since 21 Aug 2014) |
| HEAnet-CERT (IE) | Ireland | Listed (since 09 Aug 2023) |
| HKCERT (HK) | Hong Kong | Listed (since 19 Jul 2024) |
| HUN-CERT (HU) | Hungary | Listed (since 21 Jul 2022) |
| HWG-CERT (IT) | Italy | Certification Candidate (since 10 Jul 2024) |
| Handelsbanken SIRT | Sweden | Accredited (since 09 Jan 2012) |
| HealthNet-CSIRT | Luxembourg | Accredited (since 29 Nov 2017) |
| HelseCERT (NO) | Norway | Listed (since 06 Sep 2022) |
| HiSolutions Blue Team (DE) | Germany | Listed (since 14 Sep 2023) |
| Hitachi Energy PSIRT | Switzerland | Re-Listing Candidate (since 17 Apr 2025) |
| Huawei PSIRT | China | Listed (since 07 Dec 2024) |
| IBD | Netherlands | Certification Candidate (since 06 Feb 2024) |
| ICA Sistemas y Seguridad CiberSOC (ES) | Spain | Listed (since 17 Apr 2023) |
| ICT Academy CERT (KV) | Kosovo, Republic Of | Listed (since 31 May 2024) |
| IGNITIS CERT (LT) | Lithuania | Accredited (since 16 Sep 2022) |
| IHK-CERT | Germany | Listed (since 30 Mar 2023) |
| ILAN-CERT (IL) | Israel | Listed (since 19 Oct 2022) |
| INCIBE-CERT | Spain | Certified (since 26 Feb 2024) |
| INETUM CSIRT (ES) | Spain | Listed (since 29 Jul 2024) |
| INFN CSIRT (IT) | Italy | Listed (since 08 Apr 2024) |
| INTERNEXT CSIRT (CZ) | Czech Republic | Listed (since 14 Apr 2025) |
| IRISSCERT | Ireland | Accredited (since 16 May 2010) |
| ISIRT | *World Wide | Re-Listing Pending (since 16 Aug 2022) |
| ISPA CSIRT | Czech Republic | Listed (since 30 Apr 2022) |
| ITS-CERT (ES) | Spain | Listed (since 02 Jun 2022) |
| ITXCSIRT (ES) | Spain | Accredited (since 23 Sep 2022) |
| Infineon CDC | Germany | Certified (since 26 Feb 2024) |
| Innotec Security (ES) | Spain | Accredited (since 14 Oct 2016) |
| IstroCSIRT (SK) | Slovakia | Accredited (since 17 Sep 2022) |
| JCSC (JE) | Jersey | Accredited (since 03 Nov 2023) |
| JN DATA CDC | Denmark | Certified (since 18 Dec 2020) |
| Jisc CSIRT (UK) | United Kingdom | Accredited (since 01 Jan 2001) |
| Jo-FinCERT (JO) | Jordan | Accredited (since 13 Mar 2024) |
| JoCERT (JO) | Jordan | Accreditation Candidate (since 27 Sep 2024) |
| KAORA-CSIRT | Czech Republic | Listed (since 11 Oct 2023) |
| KBC Group CERT | Belgium | Accredited (since 22 Feb 2016) |
| KBM CSIRT (CZ) | Czech Republic | Listed (since 11 Jun 2024) |
| KERNUN CSIRT (CZ) | Czech Republic | Listed (since 28 May 2024) |
| KIT-CERT | Germany | Certified (since 26 Sep 2024) |
| KOS-CERT | Kosovo, Republic Of | Accredited (since 03 Jul 2017) |
| KPN-CERT | Netherlands | Certified (since 27 Mar 2012) |
| KVTC-CERT | Lithuania | Accredited (since 19 Oct 2009) |
| KZ-CERT | Kazakhstan | Accreditation Suspended (since 05 Oct 2023) |
| KazAcad CSIRT | Kazakhstan | Re-Listing Pending (since 19 Feb 2025) |
| Kering-CERT (FR) | France | Accredited (since 17 May 2024) |
| Kindred-CSIRT (SE) | Sweden | Accredited (since 02 May 2022) |
| KrCERT/CC (KR) | Korea, Republic Of | Certified (since 26 Feb 2024) |
| KraftCERT | Norway | Certified (since 15 Mar 2021) |
| LAYER8 CSIRT (PT) | Portugal | Accredited (since 30 Nov 2022) |
| LDO-CERT | Italy | Accredited (since 21 Jun 2019) |
| LE-CERT | Spain | Accredited (since 28 Jan 2021) |
| LION-CSIRT (IT) | Italy | Accredited (since 31 May 2024) |
| LITNET CERT | Lithuania | Accredited (since 27 Jan 2005) |
| LiU IRT | Sweden | Certified (since 07 Nov 2014) |
| MAPFRE-CCG-CERT (ES) | Spain | Listed (since 28 Mar 2022) |
| MASTER.CZ-CSIRT (CZ) | Czech Republic | Listed (since 24 Apr 2024) |
| MD-CERT | Moldova, Republic Of | Re-Listing Pending (since 23 Apr 2022) |
| MIFI SOC (SK) | Slovakia | Listed (since 14 Dec 2022) |
| MKD-CIRT | North Macedonia | Accredited (since 08 Dec 2017) |
| MNEMO-CERT (ES) | Spain | Listed (since 03 May 2024) |
| MUP CERT | Serbia | Accredited (since 23 Nov 2018) |
| MYCD-CERT (ES) | Spain | Accredited (since 26 Jul 2024) |
| MoRENet CSIRT | Mozambique | Listed (since 03 Oct 2022) |
| NAIS G-CSIRT (AL) | Albania | Accredited (since 08 Jan 2025) |
| NASK IRT (PL) | Poland | Listed (since 27 Oct 2023) |
| NCERT-GR | Greece | Re-Listing Pending (since 08 Jul 2023) |
| NCOC SOC | Czech Republic | Listed (since 25 Apr 2025) |
| NCSC (UK) | United Kingdom | Accreditation Suspended (since 28 Jan 2020) |
| NCSC-BH (BH) | Bahrain | Listed (since 09 Mar 2023) |
| NCSC-FI | Finland | Re-Certification Candidate (since 22 Jan 2025) |
| NCSC-Hungary | Hungary | Accredited (since 14 Feb 2006) |
| NCSC-MD (MD) | Moldova, Republic Of | Listed (since 18 Dec 2024) |
| NCSC-NL | Netherlands | Certified (since 26 Nov 2010) |
| NCSC-NO | Norway | Accredited (since 26 Jan 2007) |
| NCZI CSIRT (SK) | Slovakia | Accredited (since 11 Dec 2024) |
| NESTOR (CZ) | Czech Republic | Certified (since 13 Jan 2025) |
| NEXI CDC (IT) | Italy | Accredited (since 10 Jun 2020) |
| NFCERT (NO) | Norway | Listed (since 19 Jul 2022) |
| NIX.CZ-CSIRT (CZ) | Czech Republic | Listed (since 05 Apr 2024) |
| NKSC/CERT-LT | Lithuania | Accredited (since 16 Jan 2009) |
| NN-GROUP CSIRT | Czech Republic | Accredited (since 05 Nov 2020) |
| NORDUnet CERT | *Europe | Re-Certification Candidate (since 17 Feb 2025) |
| NRB-CSIRT (BE) | Belgium | Listed (since 20 Dec 2023) |
| NRD CIRT | Lithuania | Accredited (since 03 Mar 2017) |
| NSOC (PL) | Poland | Listed (since 01 Apr 2025) |
| NTTDATA-ES-CERT (ES) | Spain | Listed (since 27 Oct 2023) |
| NVISO-CSIRT | Belgium | Accredited (since 09 Apr 2018) |
| NW-CERT | Netherlands | Accredited (since 31 Mar 2021) |
| National CSIRT-CY (CY) | Cyprus | Accredited (since 21 Jun 2018) |
| National Cybersecurity Authority (SA) | Saudi Arabia | Accredited (since 15 Jun 2020) |
| NavCERT | France | Accredited (since 20 Apr 2020) |
| Netia SOC (PL) | Poland | Listed (since 15 May 2025) |
| NetsCERT | Denmark | Listed (since 21 Nov 2022) |
| Nikhef CSIRT (NL) | Netherlands | Listed (since 28 Nov 2024) |
| Nokia PSIRT (FI) | Finland | Listed (since 11 May 2023) |
| Nord Security SOC (LT) | Lithuania | Listed (since 30 Jan 2023) |
| Nova Defense (RS) | Serbia | Listed (since 14 Aug 2024) |
| O2.cz CERT (CZ) | Czech Republic | Accredited (since 21 Nov 2023) |
| OBRELA-CSIRT (GR) | Greece | Accredited (since 22 Nov 2024) |
| OCINT-CSIRT (CH) | Switzerland | Accredited (since 06 Jun 2024) |
| OS-CERT (CH) | Switzerland | Accredited (since 14 Nov 2016) |
| OWN-CERT (FR) | France | Listed (since 21 Nov 2022) |
| Omni (RO) | Romania | Accredited (since 26 Sep 2024) |
| OneCyber CERT (ES) | Spain | Accredited (since 05 Jul 2024) |
| OneseQ CERT (ES) | Spain | Accredited (since 16 Sep 2022) |
| Orange-CERT-CC | France | Listed (since 23 Dec 2022) |
| OxCERT | United Kingdom | Accredited (since 26 Mar 2019) |
| PGE-CERT (PL) | Poland | Re-Certification Candidate (since 10 May 2022) |
| PGGM-CERT | Netherlands | Accredited (since 10 Jun 2021) |
| PI-CERT (IT) | Italy | Accredited (since 03 Dec 2013) |
| PIONIER-CERT (PL) | Poland | Accredited (since 09 Feb 2024) |
| PLX CSIRT (ES) | Spain | Listed (since 30 May 2022) |
| PODA-CSIRT (CZ) | Czech Republic | Listed (since 09 Jul 2024) |
| POLI-CERT (IT) | Italy | Accredited (since 05 Aug 2021) |
| PRE-CERT | Germany | Accredited (since 12 Jun 2002) |
| PRE.CZ-CSIRT (CZ) | Czech Republic | Listed (since 04 Jan 2024) |
| PXS-CSIRT | Belgium | Re-Certification Candidate (since 08 Nov 2023) |
| PXS-LU-CSIRT (LU) | Luxembourg | Accredited (since 25 Mar 2016) |
| Panasonic PSIRT | Japan | Accredited (since 19 Aug 2013) |
| Quant-CSIRT (CZ) | Czech Republic | Listed (since 27 Oct 2022) |
| R-IT CSIRT (AT) | Austria | Listed (since 22 Jun 2022) |
| RBCZ-CSIRT (CZ) | Czech Republic | Re-Listing Candidate (since 17 Apr 2025) |
| RCTS CERT | Portugal | Re-Certification Candidate (since 11 Oct 2024) |
| REDTEAM.PL (PL) | Poland | Listed (since 01 Aug 2023) |
| RENU-CERT | Uganda | Listed (since 23 Oct 2024) |
| RESTENA-CSIRT | Luxembourg | Accredited (since 21 Apr 2009) |
| RH-ISIRT | *World Wide | Accredited (since 05 Jun 2018) |
| RIPE NCC CSIRT | Netherlands | Accredited (since 15 Dec 2014) |
| RNIDS-CERT (RS) | Serbia | Accredited (since 04 Sep 2023) |
| RTFS.PL (PL) | Poland | Listed (since 11 Aug 2022) |
| RU-CERT | Russian Federation | Accreditation Suspended (since 28 Feb 2022) |
| RUS-CERT | Germany | Accredited (since 15 Mar 2002) |
| Rapid7 CSIRT (US) | United States | Accredited (since 20 Mar 2025) |
| RedIRIS | Spain | Accredited (since 23 Mar 2001) |
| RevelSi CSIRT (RO) | Romania | Accredited (since 18 Jun 2022) |
| RoCSIRT (RO) | Romania | Accredited (since 12 Jul 2009) |
| S-CERT | Germany | Accredited (since 10 Oct 2002) |
| S2 Grupo CERT (ES) | Spain | Accredited (since 19 Apr 2016) |
| S21sec CERT | Spain | Accredited (since 19 Sep 2011) |
| SA NREN CSIRT | South Africa | Accredited (since 15 Nov 2018) |
| SAND-CSIRT | *World Wide | Accredited (since 16 Jul 2020) |
| SANITAS-CERT | Spain | Listed (since 15 Sep 2021) |
| SAP Cybersecurity | Germany | Listed (since 16 Aug 2022) |
| SAX.CERT (DE) | Germany | Listed (since 07 Jun 2023) |
| SBAB-SIRT | Sweden | Accredited (since 10 Jul 2017) |
| SEB CSIRT (SE) | Sweden | Accredited (since 23 Sep 2016) |
| SEBET (CZ) | Czech Republic | Listed (since 13 Jun 2022) |
| SEC Defence (DE) | Germany | Listed (since 31 Jul 2024) |
| SECURE IT SOC-CSIRT (ES) | Spain | Listed (since 22 Jun 2022) |
| SEIDOR-CSIRT (ES) | Spain | Listed (since 10 Sep 2024) |
| SEZNAM.CZ-CSIRT | Czech Republic | Listed (since 18 Aug 2022) |
| SG-GITSIR (SG) | Singapore | Listed (since 08 Apr 2024) |
| SHARE CERT | Serbia | Accredited (since 28 Dec 2018) |
| SI-CERT | Slovenia | Accredited (since 03 Jul 2001) |
| SIA-CERT (ES) | Spain | Listed (since 22 Aug 2024) |
| SIGOV-CERT (SI) | Slovenia | Accredited (since 10 Jul 2024) |
| SK-CERT | Slovakia | Certified (since 26 Mar 2020) |
| SKV-SOC | Sweden | Listed (since 27 Jul 2021) |
| SNIPESEC-CSIRT (CY) | Cyprus | Listed (since 27 Feb 2023) |
| SOC FDJ (FR) | France | Listed (since 21 Feb 2023) |
| SOC Thein (CZ) | Czech Republic | Accredited (since 19 Mar 2025) |
| SOC Trecom (PL) | Poland | Accredited (since 03 Apr 2024) |
| SOC-Corpus | Czech Republic | Accredited (since 24 Oct 2018) |
| SOC-GSE | Italy | Accredited (since 23 Nov 2017) |
| SOC24.PL | Poland | Accredited (since 28 Jan 2019) |
| SOC365 CSIRT (CZ) | Czech Republic | Accredited (since 23 Dec 2022) |
| SOCA | Czech Republic | Accredited (since 10 Feb 2017) |
| SOCRadar (US) | United States | Listed (since 11 Mar 2024) |
| SPCS CSIRT (CH) | Switzerland | Accredited (since 10 May 2024) |
| SRB-CERT | Serbia | Accredited (since 09 Aug 2019) |
| ST CSIRT (FR) | France | Listed (since 06 Mar 2023) |
| STI CERT | Romania | Accredited (since 20 Nov 2015) |
| SUNET CERT | Sweden | Accredited (since 23 May 2002) |
| SURFcert | Netherlands | Certified (since 25 Aug 2023) |
| SWITCH-CERT | Switzerland | Certified (since 02 Jun 2011) |
| SYNETIS CERT (FR) | France | Listed (since 29 Jan 2024) |
| SZ SOC (CZ) | Czech Republic | Accredited (since 07 Aug 2024) |
| SektorCERT (DK) | Denmark | Accredited (since 23 Aug 2021) |
| SentorSOC (SE) | Sweden | Accredited (since 16 Oct 2024) |
| Siemens CERT | Germany | Accredited (since 23 Mar 2001) |
| SmartSOC (PL) | Poland | Accredited (since 18 Dec 2024) |
| Sorint.SEC (IT) | Italy | Accredited (since 16 Oct 2024) |
| Sri Lanka CERT/CC (LK) | Sri Lanka | Listed (since 20 Jun 2022) |
| StACSIRT | United Kingdom | Accredited (since 19 Jan 2018) |
| StillSec iSOC (PL) | Poland | Listed (since 18 Aug 2023) |
| Swedbank CDC | Sweden | Certified (since 20 Sep 2023) |
| Swisscom CSIRT | Switzerland | Listed (since 10 Jun 2022) |
| T-CERT (NL) | Netherlands | Listed (since 17 May 2023) |
| TCS-CERT (LU) | Luxembourg | Certified (since 31 Aug 2023) |
| TDC NET CDC (DK) | Denmark | Certified (since 20 Sep 2023) |
| TERNA-CERT | Italy | Accredited (since 06 May 2019) |
| TETANET-CZ-CERT (CZ) | Czech Republic | Listed (since 22 May 2022) |
| THA-CERT | *World Wide | Accredited (since 18 Sep 2017) |
| TMCZ CSIRT | Czech Republic | Accredited (since 16 Feb 2021) |
| TPS-CSIRT (CZ) | Czech Republic | Listed (since 07 Jun 2023) |
| TR-CERT | Turkey | Accredited (since 17 Jun 2008) |
| TS CSIRT | Czech Republic | Accredited (since 28 Feb 2020) |
| TS-WAY CIOC (IT) | Italy | Listed (since 24 Apr 2024) |
| TSLO-CERT (SI) | Slovenia | Accredited (since 02 Jun 2021) |
| Team Cymru | *World Wide | Accredited (since 26 Aug 2010) |
| TechCERT (LK) | Sri Lanka | Re-Listing Pending (since 16 Apr 2025) |
| Telecentras CSIRT (LT) | Lithuania | Listed (since 19 Sep 2023) |
| Telefonica CSIRT (ES) | Spain | Listed (since 24 Aug 2023) |
| TeliaCERT | Sweden | Certified (since 29 Sep 2011) |
| TotalEnergies CERT (FR) | France | Listed (since 21 Aug 2020) |
| Trifork Security CSIRT (DK) | Denmark | Listed (since 01 Feb 2023) |
| Truesec-CSIRT (SE) | Sweden | Certified (since 31 Aug 2023) |
| TurkTelekom-CSIRT (TR) | Turkey | Accredited (since 27 Aug 2019) |
| UBT-CERT | Kosovo, Republic Of | Accredited (since 01 Aug 2018) |
| ULAK-CSIRT | Turkey | Accredited (since 14 Jul 2007) |
| UNICOM CERT (RS) | Serbia | Accredited (since 21 Apr 2022) |
| UNT-CERT (IT) | Italy | Accredited (since 17 Apr 2023) |
| UU-CSIRT | Sweden | Accredited (since 09 Oct 2015) |
| UZCERT (UZ) | Uzbekistan | Listed (since 16 Mar 2023) |
| UiO-CERT | Norway | Certified (since 26 Feb 2024) |
| UmU IRT | Sweden | Listed (since 01 Sep 2024) |
| UniMS-CERT (DE) | Germany | Accredited (since 19 May 2021) |
| Uniper CDC (DE) | Germany | Listed (since 20 Feb 2024) |
| VDE | Germany | Accredited (since 03 Feb 2018) |
| VFCZ CSIRT (CZ) | Czech Republic | Listed (since 01 Apr 2025) |
| VINCI-CERT | France | Accredited (since 02 Oct 2020) |
| VNET CSIRT (SK) | Slovakia | Accreditation Candidate (since 30 Apr 2025) |
| VOID SOC | Slovakia | Accredited (since 01 Nov 2019) |
| VPOL-SOC (PL) | Poland | Listed (since 17 Apr 2025) |
| VSHOSTING-CSIRT (CZ) | Czech Republic | Listed (since 01 Nov 2023) |
| Versia-CSIRT (ES) | Spain | Accredited (since 24 May 2023) |
| WEB4U-CSIRT (CZ) | Czech Republic | Listed (since 17 Jun 2022) |
| WEDOS-CSIRT (CZ) | Czech Republic | Listed (since 02 Jan 2025) |
| WIA-CSIRT (CZ) | Czech Republic | Listed (since 03 Oct 2022) |
| War-CSIIRT (UK) | United Kingdom | Listed (since 14 Jul 2022) |
| WienCERT | Austria | Re-Certification Candidate (since 04 Dec 2020) |
| XING (DE) | Germany | Accredited (since 26 Mar 2014) |
| XPD-SIRT | Sweden | Listed (since 20 Feb 2024) |
| Xameco-CSIRT (BE) | Belgium | Listed (since 03 Oct 2024) |
| Xeek CSIRT (CZ) | Czech Republic | Listed (since 03 Jan 2024) |
| YCERT | Italy | Listed (since 13 Feb 2024) |
| Z-CERT (NL) | Netherlands | Certified (since 27 Feb 2025) |
| aeCERT (AE) | United Arab Emirates | Accredited (since 31 May 2022) |
| civitec CERT (DE) | Germany | Listed (since 04 Jul 2023) |
| csirtMEO (PT) | Portugal | Accredited (since 06 Apr 2012) |
| eCSIRT (CZ) | Czech Republic | Listed (since 17 Aug 2022) |
| eduCSC-NO (NO) | Norway | Certified (since 31 Jan 2014) |
| eduGAIN CSIRT (NL) | Netherlands | Listed (since 12 Feb 2024) |
| esCERT-UPC (ES) | Spain | Accredited (since 30 Sep 2001) |
| eu-LISA CSIRT | *European Union | Listed (since 09 Feb 2023) |
| gematik CERT (DE) | Germany | Accredited (since 16 Apr 2024) |
| govmtCSIRT (MT) | Malta | Accredited (since 24 May 2004) |
| ha-vel CSIRT | Czech Republic | Listed (since 03 Oct 2022) |
| itm8 CDC (DK) | Denmark | Certification Candidate (since 10 Apr 2024) |
| itm8 CSIRT (DK) | Denmark | Certification Candidate (since 03 Apr 2025) |
| mIRT | Norway | Accredited (since 08 May 2017) |
| sCERT AT | Austria | Accredited (since 16 Jan 2020) |
| secu-CERT (DE) | Germany | Listed (since 08 Jul 2022) |
| tk CERT | Germany | Accredited (since 05 Feb 2014) |
| ws-csirt (SK) | Slovakia | Listed (since 23 May 2024) |