J. Brian Sims, Partner at Heartstrings Media Capital is an active investor based in Amarillo, Texas. This profile covers what J. Brian Sims backs, at which stage, and how founders can reach out in 2026.
J. Brian Sims is a Partner at Heartstrings Media Capital and also an Orthopedic Hand Surgeon and Owner of Canyon Beef.
J. Brian Sims invests in Media & Content, typically at Seed and Series A.
- Investor type
- VC
- Stages
- SeedSeries A
- Invests in
- Media & Content
- Location
- Amarillo, Texas
- Typical check
- $625K
How to reach J. Brian Sims
Angels and operators like J. Brian Sims reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Round Funded. "J. Brian Sims." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/j-brian-sims
Frequently Asked Questions
Who is J. Brian Sims?
J. Brian Sims, Partner at Heartstrings Media Capital is an active investor based in Amarillo, Texas. J. Brian Sims invests in Media & Content, typically at Seed and Series A.
What does J. Brian Sims invest in?
J. Brian Sims invests in Media & Content, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does J. Brian Sims invest at?
J. Brian Sims typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is J. Brian Sims's typical check size?
J. Brian Sims typically writes checks around $625K. 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.
What is Round Funded?
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.