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.

Keith P. Brown


Keith is a Principal of Syntax SDG Holdings LLC, a private equity firm founded in 2017. Keith's career has spanned investment banking, specializing in municipal finance; real estate development, specializing in student housing and mixed-use projects; and entrepreneurship, as a co-founder specializing in lifestyle apparel. Currently, Keith is a Managing Director at OnBoard Search, an industry leader in legal recruiting and placement, where he spearheads business development and is actively involved in all aspects of operations. Keith earned a B.A. in Communication from The University of Alabama in 1999, and earned both a J.D. and a M.B.A from Samford University in 2004. At Samford’s Brock School of Business, Keith is its current Entrepreneur-in-Residence, an adjunct instructor and sits on their E.M.M. Advisory Board. Keith is also currently a Mentor in the Velocity Accelerator Program at Birmingham’s Innovation Depot.

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.

Peter J. Berryman


Pete is an Associate at Syntax SDG Holdings LLC. He is a recent graduate of Auburn University with a degree in Industrial and Systems Engineering and a minor in Spanish. He graduated Cum Laude and as an Honors Scholar. Additionally, Pete walked on the Auburn football team for two seasons as a wide receiver and was named 2016 Offensive Scout Team Player of the Year. While on the team, he was named to the National Football Foundation Hampshire Honor Society and the SEC Academic Honor Roll. In May of 2018, Pete was signed by the Edmonton Eskimos of the Canadian Football League. However, true to form, Pete also works with Syntax and will be for the foreseeable future.

Contact Us

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Where to find us

6 Office Park Circle | Suite 210
Birmingham, AL 35223