# Clifton Harness

> Clifton Harness is the co-founder and CEO of TestFit, a Dallas-based real estate feasibility platform that lets developers, architects and contractors solve site plans in seconds instead of weeks. A University of Texas at Austin architecture graduate who grew up around his father's development business, Harness spent two years doing site plan test fits at StreetLights Residential before teaming up with his college roommate, software developer Ryan Griege, to automate the repetitive work. TestFit has raised roughly $22 million, led by a $20 million Series A from Parkway Venture Capital, and Harness has become a leading and often provocative voice on generative design in the AEC industry.

- **Role:** Co-Founder and CEO at TestFit
- **Organizations:** TestFit, StreetLights Residential (former)
- **Nationality:** American
- **Education:** Bachelor of Architecture (B.Arch.), The University of Texas at Austin
- **Known for:** Co-founded and leads TestFit, a real estate feasibility platform used by developers, architects, engineers and contractors, Raised approximately $22 million in funding, including a $20 million Series A led by Parkway Venture Capital in 2022, Helped position TestFit as a category creator in real-time real estate feasibility and generative site planning

## Career timeline

- **2015** — Joined StreetLights Residential in Dallas, spending roughly two years doing site plan test fits full-time
- **2015-2017** — Co-founded TestFit with software developer and college roommate Ryan Griege, starting with a command-line tool that solved apartment unit mixes
- **2022** — TestFit raised a $20 million Series A led by Parkway Venture Capital, bringing total funding to about $22 million
- **2023** — TestFit named Startup of the Year at the Venture Dallas Summit
- **2024** — Spoke at NXT BLD 2024, presenting TestFit's generative design approach

## Achievements

- Co-founded and leads TestFit, a real estate feasibility platform used by developers, architects, engineers and contractors
- Raised approximately $22 million in funding, including a $20 million Series A led by Parkway Venture Capital in 2022
- Helped position TestFit as a category creator in real-time real estate feasibility and generative site planning
- Named Startup of the Year at the 2023 Venture Dallas Summit
- Became a widely invited speaker and podcast guest on generative design and the future of AEC technology

## Latest updates

- **2024-06** — Presented TestFit's generative design at NXT BLD 2024 in London.
- **2023-01** — TestFit recognized as Startup of the Year at the Venture Dallas Summit.
- **2022-07** — TestFit announced a $20 million Series A led by Parkway Venture Capital.

## Links

- Website: https://testfit.io
- LinkedIn: http://www.linkedin.com/in/cliftonharness
- Twitter/X: https://twitter.com/CliftonHarness

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Profile page: https://yespress.io/clifton-harness
Published by YesPress — https://yespress.io
Last updated: 2026-07-22