AppCheck
AppCheck is a cybersecurity company specializing in Application Security, founded in 2009 and headquartered in Leeds, United Kingdom. It employs about 103 people and is privately held.
updated Oct 19, 2026
Latest AppCheck news and company activity
What AppCheck did, dated — selected moves from the record, one per kind, newest first.
- Jun 2026PartnershipNew Partnership announcement – Peritus Cloud - AppCheck NG
- May 2026Funding roundAppCheck partners with LDC to accelerate growth
- Mar 2026PartnershipAppCheck Partners with Millgate for Enhanced Cyber Security
- Apr 2024Product launchAppCheck Launches Public-Facing Known Vulnerability Database
AppCheck Momentum score
56/ 100
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
AppCheck employees and hiring
AppCheck has about 103 employees, down 2% over the last 30 days, with 2 open roles.
- Employees
- 103
- 30-day change
- -2%
- Open roles
- 2
AppCheck competitors
Security professionals most often compare AppCheck against Sucuri, Rapid7, and Tenable on cybersectools.com. 6 more are in the platform, with overlap scoring.
ranked by CybersecTools comparison demand, 90 days
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The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobs2 live postings, role mix
- Tech stackframeworks, clouds, security
