Unbound Security

Unbound Security is a technology company.

Closed

Updated: Feb 17, 2026 ·

Recent News & Mentions

May 1, 2025FundingUnbound Security - Seed Sep 1, 2024FundingUnbound Security - Seed Nov 1, 2020FundingUnbound Security - Series B

Financial History

Unbound Security has raised $24.5M across 3 funding rounds. Most recently, it raised $4.0M Seed in May 2025.

Total Raised

$24.5M

Valuation

N/A

Funding Rounds Raised

Date	Round	Other Investors
May 1, 2025	$4.0M Seed	10100, Evolution Equity Partners, Felicis Ventures, Rick Yang, New Enterprise Associates, Otherwise Fund, Picus Capital, Pioneer Fund, Race Capital, Zain Rizavi, Ridge Ventures, Scale Asia Ventures, Y Combinator, Gokul Rajaram, Immad Akhund, Jonathan Swanson, Max Mullen, Mike Krieger, Oliver Cameron
Sep 1, 2024	$500K Seed	10100, Antiportfolio Ventures, Benchmark, Bessemer Venture Partners, Felicis Ventures, Gradient Ventures, ICONIQ Capital, Otherwise Fund, Picus Capital, Pioneer Fund, Race Capital, Redpoint Ventures, Scale Asia Ventures, Y Combinator, Gokul Rajaram, Immad Akhund, Jonathan Swanson, Max Mullen, Mike Krieger, Oliver Cameron, Tom Blomfield
Nov 1, 2020	$20.0M Series B	.406 Ventures, AllegisCyber Capital, Endeavor Catalyst, Evolution Equity Partners, Marcos Galperin

Financial History

Unbound Security has raised $24.5M across 3 funding rounds.

Total Raised

$24.5M

Valuation

N/A

Deep Dive

# High-Level Overview

Unbound Security is a cryptographic infrastructure and AI security company that helps enterprises protect sensitive data, manage encryption keys, and safely adopt AI tools without exposing corporate secrets[1][3]. The company serves large enterprises and Fortune 500 organizations by providing software-based solutions that secure critical business transactions, authentication, and digital assets across hybrid and multi-cloud environments[1][3].

The company operates across two distinct product lines. Its original Unbound Security CORE platform uses Secure Multi-Party Computation (MPC) technology to manage cryptographic keys and secrets across all organizational environments from a centralized location[1]. More recently, Unbound has pivoted toward AI security, launching an AI Gateway that provides real-time protection against data leakage when employees use AI tools like Cursor, Roo, and Cline[2]. This dual focus addresses urgent enterprise needs: securing traditional cryptographic infrastructure while simultaneously managing the security risks introduced by widespread AI adoption.

# Origin Story

Unbound Security was founded in 2014 by world-renowned cryptographers Professor Yehuda Lindell and Professor Nigel Smart, alongside Guy Peer, who leads the company's research and development efforts[3]. The founding team's deep expertise in cryptography and security infrastructure positioned them to pioneer breakthrough technologies in key management—solutions that have since been adopted by many of the world's largest financial institutions[3].

The company's recent evolution reflects a strategic pivot toward emerging market needs. CEO and co-founder Rajaram Srinivasan previously led data security products at Palo Alto Networks and Imperva, bringing enterprise security expertise honed during the early SaaS security wave[2]. He partnered with CTO and co-founder Vignesh Subbiah, a seasoned engineer who scaled platforms from seed to growth stage at companies like Tophatter and Shogun[2]. After reconnecting at Adobe, the two built Unbound's AI security product to address the urgent gap between enterprise AI adoption and data protection—a problem that emerged as organizations rapidly deployed generative AI tools without adequate safeguards[2].

# Core Differentiators

Cryptographic foundation: Built on Secure Multi-Party Computation (MPC), a sophisticated mathematical approach that ensures cryptographic keys are never exposed throughout their lifecycle, even in public cloud, private cloud, containers, and on-premise environments[3].

Real-time data redaction: Rather than blocking AI requests outright, Unbound redacts sensitive content in real time and reroutes high-risk requests to internal, open-source models hosted within the organization's cloud infrastructure[2]. This approach prevents security friction while maintaining protection.

Proven impact at scale: In early deployments, Unbound has prevented hundreds of credential leaks (passwords, API keys, connection strings) and over 500 instances of personally identifiable information exposure[2]. Customers have prevented over 7,000 potential data leaks and reduced AI tooling costs by nearly 70 percent[2].

Enterprise-grade visibility and control: The AI Gateway provides real-time protection, model routing, and usage analytics, giving IT teams comprehensive visibility into how AI tools are being used across the organization[2].

# Role in the Broader Tech Landscape

Unbound sits at the intersection of two critical enterprise security trends. First, the shift toward encrypted, cloud-native infrastructure has made cryptographic key management essential for any organization managing sensitive data across multiple environments[3]. Second, and more urgently, the rapid enterprise adoption of AI tools has created a new attack surface—employees using consumer and internal AI applications without adequate controls, inadvertently leaking trade secrets, customer data, and credentials[2].

The timing is particularly acute. As organizations move toward hybrid and multi-cloud environments and deploy remote workforces, the traditional perimeter-based security model has collapsed[1]. Simultaneously, the proliferation of AI tools—from ChatGPT to specialized coding assistants—has outpaced enterprise security governance. Unbound's positioning allows it to address both the foundational cryptographic infrastructure problem and the emerging AI governance challenge, making it relevant to security teams across industries.

# Quick Take & Future Outlook

Unbound is well-positioned to capture significant market share in enterprise AI security, a category that barely existed two years ago but is now a top priority for CISOs. The company's $4 million funding round (announced in 2025) signals investor confidence in its AI security product, while its earlier $20 million Series B (2021) demonstrated traction in the traditional key management market[2][3].

The company's future likely hinges on becoming the default security layer for enterprise AI adoption—similar to how endpoint protection became standard for device security. As enterprises move beyond pilot programs to widespread AI deployment, the demand for tools that enable innovation without sacrificing security will intensify. Unbound's approach of "surgical security controls" rather than blanket bans aligns with how enterprises actually want to operate: enabling productivity while maintaining compliance and data protection.

The broader implication is that security infrastructure companies that can evolve from protecting legacy systems to protecting emerging technologies will define the next generation of enterprise software. Unbound's dual focus on cryptographic infrastructure and AI security positions it as a bridge between these eras.

Sources

Frequently Asked Questions

How much funding has Unbound Security raised?

Unbound Security has raised $24.5M in total across 3 funding rounds.

Who are Unbound Security's investors?

Unbound Security's investors include 10100, Evolution Equity Partners, Felicis Ventures, Rick Yang, New Enterprise Associates, Otherwise Fund, Picus Capital, Pioneer Fund, Race Capital, Zain Rizavi, Ridge Ventures, Scale Asia Ventures.