Seal Security
Seal Security is a cybersecurity company specializing in Application Security, founded in 2022 and headquartered in Wilmington, United States. It has raised $20.4M in equity across 2 priced rounds, employs about 114 people, and is privately held.
updated Oct 11, 2026
Latest Seal Security news and company activity
What Seal Security did, dated — selected moves from the record, one per kind, newest first.
- Oct 2026Customer winSeal Security Secures AngularJS Patient Portal for Northbeam Health Without Rewriting
- Oct 2026PartnershipOracle Authorizes Seal Security to Sign Java Cryptographic Providers
- Apr 2026Product launchSeal Security Launches Mythos Program to Close Patch Gap
- Jul 2025Funding roundSeal Security raises $13M Series A to automate open-source vulnerability fixes
Seal Security Momentum score
49/ 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.
Seal Security funding
Seal Security has raised $20.4M in priced equity. Its most recent round was a Series A in July 2025. It has 2 funding rounds on record: Seed and Series A. 7 investors are on record, including Vertex Ventures Israel and Crew Capital.
- Equity raised
- $20.4M2 priced rounds
- Last round
- Series AJul 2025
Seal Security employees and hiring
As of September 2026, Seal Security has about 114 employees, down 1% over the last 30 days.
- Employees
- 114
- 30-day change
- -1%
- Open roles
- 0
Seal Security competitors
Competitors of Seal Security include Datadog and Aikido Security. The full competitive set, with overlap scoring, is in the platform.
ranked by CybersecTools comparison demand, 90 days
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Seal Security CISO Positioning Score
How Seal Security reads to a CISO buyer: seven dimensions of the Mandos Framework, scored through the eyes of a security buyer.
