# Straiker

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/straiker

- Industry: IT Security/Cybersecurity
- Headquarters: Mountain View, US
- Website: www.straiker.ai
- Total disclosed funding: $86M
- Latest round: Series A (Jun 29, 2026)
- Investors on record: 11

## About

Straiker Inc. is an innovative company specializing in AI-native protection solutions for AI applications, ensuring security and risk management through its advanced offerings. Founded in 2024 in Sunnyvale, California, Straiker Inc. focuses on AI application security. In June 2026, Straiker Inc. raised USD 64 million in series A funding co-led by Marathon Management Partners, Citi Ventures, Illuminate Financial, Neva and Workday Ventures, with participation from Intesa Sanpaolo Innovation Center, Bain Capital and Lightspeed Venture Partners.

Straiker specializes in providing AI-native protection solutions designed specifically for AI applications and agents. Their core offering, Defend AI, utilizes an automated attack simulation framework that conducts comprehensive security and safety checks to identify critical risks within AI systems. By leveraging continuous testing and one-time assessments, Straiker ensures that AI applications are safeguarded against a diverse range of security threats that can target multiple layers of the systems. The integration of Ascend AI facilitates automated threat blocking for identified risks, streamlining the security process. The company serves a varied client base, including businesses in finance, healthcare, and technology, with their solutions marketed primarily across North America, Europe, and select regions in Asia.Straiker's revenue model is primarily built on subscription-based services that cater to businesses requiring robust security solutions for their AI applications. Transactions typically occur through annual subscriptions, with clients engaging in agreements that encompass ongoing support and updates for the security assessments provided. The flagship product, Defend AI, creates a framework where clients can choose between one-time assessments or continuous protection plans, allowing for customized solutions that can adapt to the specific needs of different organizations, ensuring they receive appropriate support tailored to their operational requirements. 

The company will use the June 2026 funding to expand its security platform, support threat research, and grow its operations in new markets.

## Funding rounds

- Series A, Jun 29, 2026, $65M — Lightspeed Venture Partners, Bain Capital, Citi Ventures, Firebolt Ventures, Illuminate Financial, Workday Ventures, Neva, Rain Capital, Sixty Degree Capital, GTM Capital, Marathon Management Partners
- Series A, Apr 17, 2024, $21M — Lightspeed Venture Partners, Bain Capital

## Investors

- Lightspeed Venture Partners (https://capitalatlas.ai/funds/lightspeed-venture-partners) — Series A
- Bain Capital (https://capitalatlas.ai/funds/bain-capital) — Series A
- Citi Ventures (https://capitalatlas.ai/funds/citi-ventures) — Series A
- Firebolt Ventures (https://capitalatlas.ai/funds/firebolt-ventures) — Series A
- Illuminate Financial (https://capitalatlas.ai/funds/illuminate-financial) — Series A
- Workday Ventures (https://capitalatlas.ai/funds/workday-ventures) — Series A
- Neva (https://capitalatlas.ai/funds/neva) — Series A
- Rain Capital (https://capitalatlas.ai/funds/rain-capital) — Series A
- Sixty Degree Capital (https://capitalatlas.ai/funds/sixty-degree-capital) — Series A
- GTM Capital (https://capitalatlas.ai/funds/gtm-capital) — Series A
- Marathon Management Partners (https://capitalatlas.ai/funds/marathon-management-partners) — Series A