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Enhancing responsible gun ownership. 

Sentinl: A project of CitySpark

While City Light Capital’s portfolio is limited to early stage companies with at least $1M in revenue, we bridge the gap between early stage innovation and venture equity investment through City Spark. This initiative allows our team and our network of mission-driven executives and entrepreneurs to advise and support select early stage companies that, like Sentinl, demonstrate the potential to generate both high financial returns and social impact.

IDENTILOCK™ is a trigger lock that completely covers and prevents access to the trigger until activated by a fingerprint, allowing immediate access to firearm.


Sentinl Inc. leverages Detroit’s unique heritage of engineering, manufacturing, and gun ownership. IDENTILOCK™ by Sentinl allows split-second access to secure gun using fingerprint authentication.


Enhance responsible firearm ownership by providing instant access through technology.

What City Light Capital saw

  • Skilled entrepreneurial team
  • Bipartisan support for fewer firearm fatalities in the US: Sentinl (IDENTILOCK) has the support of both the IRA and the Sandy Hook Foundation

City Light Team

Tom Groos