The short answer
Our recommended ethical hacking and penetration testing companies for 2026 are Bishop Fox, Bugcrowd, Cobalt, HackerOne, Mandiant, NCC Group, Rapid7, Synack, Trail of Bits and Trustwave (listed alphabetically, not ranked). They test your systems the way attackers would, so you can fix weaknesses first.
At a glance
| # | Name | Headquarters | Best for |
|---|---|---|---|
| 1 | Bishop Fox | Tempe, USA | Offensive security and red teaming |
| 2 | Bugcrowd | San Francisco, USA | Crowdsourced testing |
| 3 | Cobalt | San Francisco, USA | Pentest as a service |
| 4 | HackerOne | San Francisco, USA | Bug bounty programmes |
| 5 | Mandiant | Reston, USA | Red teaming and incident response |
| 6 | NCC Group | Manchester, UK | Global penetration testing |
| 7 | Rapid7 | Boston, USA | Testing plus vulnerability management |
| 8 | Synack | Redwood City, USA | Vetted crowd testing |
| 9 | Trail of Bits | New York, USA | Deep technical audits |
| 10 | Trustwave | Chicago, USA | Penetration testing and managed security |
Listed alphabetically, not ranked.
The 10 picks in detail
1Bishop Fox
Tempe, USAOffensive security and penetration testing.
- Headquarters
- Tempe, USA
- Best for
- Offensive security and red teaming
- Category
- Ethical hacking and penetration testing companies
2Bugcrowd
San Francisco, USACrowdsourced security testing.
- Headquarters
- San Francisco, USA
- Best for
- Crowdsourced testing
- Category
- Ethical hacking and penetration testing companies
3Cobalt
San Francisco, USAPentest as a service.
- Headquarters
- San Francisco, USA
- Best for
- Pentest as a service
- Category
- Ethical hacking and penetration testing companies
4HackerOne
San Francisco, USABug bounty and vulnerability disclosure platform.
- Headquarters
- San Francisco, USA
- Best for
- Bug bounty programmes
- Category
- Ethical hacking and penetration testing companies
5Mandiant
Reston, USAIncident response and threat intelligence, part of Google.
- Headquarters
- Reston, USA
- Best for
- Red teaming and incident response
- Category
- Ethical hacking and penetration testing companies
6NCC Group
Manchester, UKCybersecurity and penetration testing.
- Headquarters
- Manchester, UK
- Best for
- Global penetration testing
- Category
- Ethical hacking and penetration testing companies
7Rapid7
Boston, USASecurity operations and vulnerability management.
- Headquarters
- Boston, USA
- Best for
- Testing plus vulnerability management
- Category
- Ethical hacking and penetration testing companies
8Synack
Redwood City, USACrowdsourced penetration testing.
- Headquarters
- Redwood City, USA
- Best for
- Vetted crowd testing
- Category
- Ethical hacking and penetration testing companies
9Trail of Bits
New York, USASecurity research and auditing firm.
- Headquarters
- New York, USA
- Best for
- Deep technical audits
- Category
- Ethical hacking and penetration testing companies
10Trustwave
Chicago, USAManaged security and penetration testing.
- Headquarters
- Chicago, USA
- Best for
- Penetration testing and managed security
- Category
- Ethical hacking and penetration testing companies
What to know before you choose
Agree systems, methods and timing in writing.
Look for CREST, OSCP or similar certifications.
Reports should prioritise fixes by risk.
Include a retest after fixes.
How to choose
- Agree service levels in writing: response and resolution times, hours of cover and escalation.
- Check where the support team is based and which languages and time zones they cover.
- Ask how they handle security, access control and compliance (for example ISO 27001 or SOC 2).
- Look at reporting: you should see tickets, trends and recommendations every month.
- Make sure you can exit cleanly, with documentation and credentials handed back.
Red flags
- No written SLA, or SLAs with no penalties.
- Hidden fees for out-of-scope work or after-hours calls.
- Shared admin passwords and no access logging.
- Long lock-in contracts with automatic renewal.
- No regular reporting or service reviews.
How we chose
These are iCreativez Technologies’ own recommendations, based on research and experience of the market. We looked at scale and stability, quality of service levels, security certifications, and a mix of global providers and firms that suit smaller businesses. The list is listed alphabetically, not ranked. Details such as services, prices, plans and locations change, so confirm them directly before you decide. No one paid to appear.
Frequently asked questions
What are the best ethical hacking and penetration testing companies?
Our recommended ethical hacking and penetration testing companies for 2026 are Bishop Fox, Bugcrowd, Cobalt, HackerOne, Mandiant, NCC Group, Rapid7, Synack, Trail of Bits and Trustwave (listed alphabetically, not ranked). They test your systems the way attackers would, so you can fix weaknesses first.
How much do these services cost?
Cost depends on scope, the team’s location and seniority, and the engagement model (fixed price, time and materials or dedicated team). Rates in Eastern Europe, Latin America and South Asia are usually lower than in the US or Western Europe. See our cost and rates guide for typical 2026 rates.
How did you choose this list?
These are iCreativez Technologies’ own recommendations, based on research and experience of the market. The list is listed alphabetically, not ranked, and nobody paid to appear. iCreativez publishes this page and is not part of the list.