# Prime

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/prime-3

- Industry: IT Security/Cybersecurity
- Headquarters: Wilmington, US
- Website: www.primesec.ai/
- Total disclosed funding: $26M
- Latest round: Series A (Dec 9, 2025)
- Investors on record: 3

## About

Founded in 2023 and based in Delaware, US, PrimSec Inc., dba Prime, operates as a cybersecurity platform developer that facilitates the scaling of security during the design phase of software development for application and product security teams. In December 2025, Prime raised USD 20 million in series A funding led by Scale Venture Partners, with participation from Flybridge Capital Partners and Foundation Capital.

The company offers a security solution called Prime, which is designed to embed security risk identification and mitigation directly. The firm enables security teams to address potential vulnerabilities in planned development tasks through automated security reviews, risk assessments, and customized mitigation strategies. Prime helps prevent breaches and late stage remediations, reducing development waste and improving product security. The company’s AI-driven engine integrates with application lifecycle management (ALM) software to conduct a full security review on every planned engineering task.

The organization plans to use the December 2025 funding to expand its market reach and accelerate development of its Agentic Product Security Platform so it can offer automated, design-stage security reviews across more engineering teams and projects.

## Funding rounds

- Series A, Dec 9, 2025, $20M — Foundation Capital, Scale Venture Partners, Flybridge Capital Partners
- Seed, Oct 9, 2024, $6M — Foundation Capital, Flybridge Capital Partners

## Investors

- Foundation Capital (https://capitalatlas.ai/funds/foundation-capital) — Seed, Series A
- Flybridge Capital Partners (https://capitalatlas.ai/funds/flybridge-capital-partners) — Seed, Series A
- Scale Venture Partners (https://capitalatlas.ai/funds/scale-venture-partners) — Series A