Marshall Williams
Partner & Chairman at Ad Results Media
Houston, Texas
Marshall Williams, Partner & Chairman at Ad Results Media is an active investor based in Houston, Texas. This profile covers what Marshall Williams backs, at which stage, and how founders can reach out in 2026.
Mr. Marshall Williams is a Co-Founder of Ad Results Media. Mr. Williams previously served as its Chief Executive Officer. He is also an Angel Investor. He got his start nearly 30 years ago as an early adopter, salesman and advocate of direct-response radio. He quickly became one of the larger buyers of endorsement radio in the US for various companies before venturing out on his own when he formed the Williams Media Group in 1997. A year later, he connected with current business partner Russell Lindley, to form "Ad Results, Inc." and in 2016 Ad Results, Inc. merged with "Brown Bear Digital, Inc.", founded by current Partners Steve Shanks, Kurt Kaufer and Michael Kropko.
- Investor type
- Angel
- Stages
- Early Stage Venture
- Invests in
- Marketing & AdTechMedia & Content
- Location
- Houston, Texas
- Typical check
- $500K
- Past investments
- 1
Notable investments
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Round Funded. "Marshall Williams." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/marshall-williams
Frequently Asked Questions
What does Marshall Williams invest in?
Marshall Williams invests in Marketing & AdTech and Media & Content, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Marshall Williams invest at?
Marshall Williams typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Marshall Williams's typical check size?
Marshall Williams typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
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Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.