Syntax SDG Holdings LLC

In Others

A Private Equity Firm investing in early stage companies headquartered in the South.


Invest. Monitor. Grow.


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Meet The Team

We’ll Get You
Up & Running

John S. Hornsby, P.E.

Chairman & CEO

John is Chairman and CEO of Syntax SDG Holdings LLC, a private equity firm he founded in 2017 after retiring from the investment advisory firm Welch Hornsby, which he cofounded in 1988. From 1984 to 1987, John served as an account executive in the Montgomery Office of Morgan Keegan & Company. Prior to entering the world of finance, John was a consulting engineer for over 5 years and is a Registered Professional Engineer (inactive). John is a native of Atlanta, Georgia. John attended Auburn University for both his undergraduate and graduate degrees, earning a Bachelor of Science in Civil Engineering in 1975 and a Master of Science in Environmental Engineering in 1977.

John is a member of the Board of Directors of the Alabama Trust Fund, Alabama Shakespeare Festival and Cornerstone Schools of Alabama. Previously, he has served on several boards including the Business Council of Alabama; the Alabama Policy Institute; and Marannook, a faith-based center for college students as well as a summer camp for children. John is also a member of the Downtown Rotary Club of Birmingham.

He and his wife, Virginia, along with their two children, are active members of the Cathedral Church of the Advent in downtown Birmingham.

Dylan Spencer


Dylan is an Associate at Syntax SDG Holdings LLC. From 2014 to 2016 he served as the Chief of Staff at Lucid, a high-growth tech startup in New Orleans. During that time he was also a Fellow with Venture for America. He left Lucid to serve as the Chief Operating Officer at Legacy School of Discipleship, a Christian ministry for college students and young adults on Lake Martin. After leaving Legacy in January of 2018 he founded BrandSpeak, a creative agency focused on helping startups and small businesses in the southeast build their brand so they can achieve their goals. Dylan joined Syntax in July of 2018.

Dylan is a graduate of Auburn University, where he walked on the basketball team for four years and studied International Business with a minor in Spanish. He is an active alumnus of Venture for America. Dylan and his wife Sarah live in Homewood.

Contact Us

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Where to find us

6 Office Park Circle | Suite 210
Birmingham, AL 35223