S

Stacklok

Provides software supply chain security tools

Overview

Stacklok provides Trusty, a free web app and Visual Studio Code extension that helps developers and open-source communities secure their dependencies. Trusty analyzes public GitHub activity to generate a Trusty Score, uses Sigstore for package provenance to verify authenticity, and continuously checks that packages are signed. It also uses generative AI to suggest related, safer packages and their trust scores, helping users find better alternatives. The goal is to help developers make safer dependency choices and improve the integrity of the software they rely on.

Significant Headcount Growth

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About Stacklok

Simplify's Rating
Why Stacklok is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Enterprise SoftwareCybersecurity

Company Size

11-50

Company Stage

Series A

Total Funding

$17.5M

Headquarters

Seattle, WA

Founded

2023

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Simplify's take

What believers are saying

  • On 2026-11-03, Stacklok shipped enterprise kill switches for MCP and AI gateways.
  • As of 2026-10-27, Stacklok says multiple Global 2000 firms run ToolHive in production.
  • October 2026 blog posts show demand for agent identity, attribution, and spend governance.

What critics are saying

  • Stacklok still reports only $17.5 million total funding, limiting enterprise sales runway.
  • OpenAI, Microsoft, Anthropic, and Red Hat commoditize MCP governance by 2027.
  • If enterprise adoption stalls, Stacklok becomes an open-source maintainer, not a durable business.

What makes Stacklok unique

  • Kubernetes-native MCP and AI-agent governance remains Stacklok’s core moat in November 2026.
  • ToolHive is open source, with Red Hat co-maintenance and 20 million monthly secured tool calls.
  • Mecatl extends that stack from tools into agent runtime, not just gateway filtering.

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Funding

Total Funding

$17.5M

Above

Industry Average

Funded Over

1 Rounds

Notable Investors:
Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Above Average

Industry standards

$15M
$8.2M
$15M
$17.5M
$30M

Benefits

  • Flexible Work Hours
  • Hybrid Work Options

Growth & Insights and Company News

6 month growth

0%

1 year growth

2%

2 year growth

0%
PR Newswire
Mar 20th, 2024
45 New Members Join The Cloud Native Computing Foundation

As the community convenes at KubeCon + CloudNativeCon Europe in Paris, CNCF welcomes continued investment from organizations around the worldPARIS, March 20, 2024 /PRNewswire/ -- KubeCon + CloudNativeCon Europe – The Cloud Native Computing Foundation® (CNCF®), which builds sustainable ecosystems for cloud native software, announced today that 45 new members have joined the Foundation. Together with hundreds of organizations spanning continents and industries, these new members will help drive cloud native innovation to respond to the diverse and pressing challenges organizations face."Every quarter it is inspiring to see the number of diverse organizations who are contributing to and leveraging cloud native technologies, and who endeavor further involvement with the community," said Chris Aniszczyk, CTO of the CNCF. "Without the investment from these forward-thinking companies, we would not be able to achieve what we have thus far in building an incredible ecosystem around Kubernetes, responding to challenges we didn't even know existed when we started in 2015. We look forward to working together with these new members."About the newest Silver Members:8gears Container Registry is a Harbor-based container image management solution provided and operated by the respective project's maintainer and contributors.Container Registry is a Harbor-based container image management solution provided and operated by the respective project's maintainer and contributors. AOE 's Cloud & DevOps expertise enhances your IT through advanced Kubernetes consulting, offering knowledge transfer, training, operations, and implementation services, enabling you to adeptly manage container orchestration and future-proof your business.'s Cloud & DevOps expertise enhances your IT through advanced Kubernetes consulting, offering knowledge transfer, training, operations, and implementation services, enabling you to adeptly manage container orchestration and future-proof your business. Apollo GraphQL is the maker of Apollo GraphOS , a platform that enables API platform teams to connect their APIs and deliver a self-service graph that can power any number of applications.is the maker of , a platform that enables API platform teams to connect their APIs and deliver a self-service graph that can power any number of applications

Stacklok
Jan 23rd, 2024
Get to know Shanis Windland, Stacklok's new Chief Operating Officer

Shanis Windland joined Stacklok's leadership team in January 2024 as its Chief Operating Officer.

Stacklok
Nov 15th, 2023
How to use Trusty in Visual Studio Code to flag risky open source libraries

Last week, Stacklok announced the launch of Trusty, a free-to-use service that helps developers make safer dependency choices.

FinSMEs
May 19th, 2023
Stacklok Raises $17.5M in Series A Funding

Stacklok, a Seattle, WA-based provider of open-source software supply chain security solutions, raised $17.5M in Series A funding.

Business Wire
May 18th, 2023
Stacklok Announces $17.5 million Series A To Secure the Supply Chain of Software Deployment

Stacklok announces $17.5 million Series A to Secure the Software Supply Chain; Madrona and Accel back Open-Source Visionaries

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