# Circadian Risk Inc.: Security & investigations, Ann Arbor, United States > Circadian Risk Inc.: Circadian Risk Inc. is an enterprise software company based in Ann Arbor, Michigan, founded in 2016 by Paul Mestemaker and Daniel R. Source: https://millionrounds.com/startup/circadian-risk-inc (Millionrounds; every figure on the page links to its filing or article) United States · [Security & investigations startup](https://millionrounds.com/companies) # Circadian Risk Inc. Circadian Risk Inc. is an enterprise software company based in Ann Arbor, Michigan, founded in 2016 by Paul Mestemaker and Daniel R. Funding reported Last round: Series A Security & investigations Ann Arbor, United States Company summary - **Founded:** 2016 10 years old - **Team:** 21 11 to 50 people - **Funding reported:** $6.0M in dollars - **Last round:** Series A Nov 2022 How sure we are - ✓ **Listed** We know it exists and what it does - 2 **Funding reported** A company dataset reports a raise - 3 **Observed** A filing or a dated announcement confirms a round No round for Circadian Risk Inc. has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology) ## About Circadian Risk Inc. Circadian Risk Inc. is an enterprise software company based in Ann Arbor, Michigan, founded in 2016 by Paul Mestemaker and Daniel R. Young. The company specializes in a data-driven SaaS platform that assesses, visualizes, and mitigates physical security risks for organizations worldwide. Led by CEO Michael J. Martin, Circadian Risk has raised approximately $7.06 million in funding, including a $6 million Series A round in February 2026, aimed at accelerating growth and integrating generative AI into its offerings. The company provides a suite of Physical Risk SaaS tools, including a centralized Physical Risk Assessment Software, a mobile Vulnerability Assessment iPad App, and a Risk Optimization Calculator. These tools help security professionals identify and manage risks at the asset level, generate automated reports, and ensure compliance with standards like OSHA and ISO. Circadian Risk primarily serves enterprise clients in industries such as banking, healthcare, government, and insurance, focusing on enhancing the safety and security of multi-building facilities and global asset footprints. ## What company datasets say Circadian Risk Inc. raised Funding, as reported Reported in all **$6.0M** in dollars Rounds **4** Last round **Series A** Last round size **$6.0M** Last round date **Nov 2022** Investors listed **3** ## Founders and team From Circadian Risk Inc.'s own website: 1 founder, 9 on the team. **Gustave K. Lipman** Chairman & Co-Founder - **Chloe Duveen** Client Success Coordinator/Security Analyst II - **Tim Simcoe** Chief Relations Officer - **Emeka Anammah** Product Specialist and Marketing Specialist - **Evan Thomas** Client Success Manager/Security Analyst II - **Lynn Stinson** Business Development Manager - **Miles Macklin** Lead Product Designer and Manager - **Rodrigo Rodrigues** Senior Engineer – IC4 - **Seth Hereford** Senior DevOps Engineer – IT Administrator – Compliance - **Steve Turko** Business Development Manager ## On 4 portfolio pages Investors who name them - [Tamiami Angel Funds](https://millionrounds.com/fund/tamiami-angel-funds) - [Michigan Angel Fund](https://millionrounds.com/fund/michigan-angel-fund) - [Desai Accelerator](https://millionrounds.com/fund/desai-accelerator) - [11 Tribes](https://millionrounds.com/fund/11-tribes) Each firm lists Circadian Risk Inc. on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source. ## The company, in detail What they build Known for visual dashboards management consulting customizable reports security threat modeling security incident management project management threat identification risk mitigation strategies risk communication risk visualization incident response planning enterprises other scientific and technical consulting services security planning security standards information technology & services Built with from their website HubSpot Sales Hub Google Tag Manager Shutterstock Linkedin Insight Tag Cloudflare DNS Google Workspace Usercentrics CloudFlare Viewport Meta LinkedIn Ads +8 more Hubspot Craft CMS Amazon AWS Amazon S3 Apple Business Manager Google Meet DigitalOcean CloudFlare CDN - **Sector:** Security & investigations - **Industry code:** NAICS 54169, 513210, 541512, SIC 8734, 7372, 7371 - **Region:** Michigan - **Full record:** [Every detail in the company directory](https://millionrounds.com/directory/circadian-risk-inc) ## Security & investigations in United States Startups like it - [**Onyx Security** Richmond · founded 2009 *Raised*](https://millionrounds.com/company/onyx-security) - [**4iQ** Los Altos · founded 2016 *Raised*](https://millionrounds.com/company/4iq) - [**Building Intelligence** New York · founded 2006 *Raised*](https://millionrounds.com/company/building-intelligence) - [**Base Operations** Washington · founded 2019 *Raised*](https://millionrounds.com/company/base-operations) - [**Global Networks Inc** Columbia · founded 2008](https://millionrounds.com/startup/global-networks-inc) - [**Interface Systems** St. Louis · founded 1995](https://millionrounds.com/startup/interface-systems) - [**Grayshift** Roswell · founded 2016](https://millionrounds.com/startup/grayshift) - [**Decision Sciences Inc** Poway · founded 2006](https://millionrounds.com/startup/decision-sciences-inc) ## Is this your company? 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