Dr. Jacob Mahaffey

Active Investor

Managing Partner at Grind Ventures

Tulsa, Oklahoma

LinkedIn

Dr. Jacob Mahaffey, Managing Partner at Grind Ventures is an active investor based in Tulsa, Oklahoma. This profile covers what Dr. Jacob Mahaffey backs, at which stage, and how founders can reach out in 2026.

Dr. Jacob Mahaffey has deployed over $500MM in capital and supported the development of 425+ medical innovations.

Dr. Jacob Mahaffey invests in Healthcare & Biotech, MedTech & Medical Devices and Digital Health & HealthTech, typically at Seed and Early Stage Venture.

Location
Tulsa, Oklahoma
Typical check
$375K

What does Dr. Jacob Mahaffey invest in?

Investor type
VC
Stages
SeedEarly Stage Venture
Invests in
Healthcare & BiotechMedTech & Medical DevicesDigital Health & HealthTech

Where is Dr. Jacob Mahaffey based?

Dr. Jacob Mahaffey is based in Tulsa, Oklahoma.

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How to reach Dr. Jacob Mahaffey

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About this profile

This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.

Cite this page

Round Funded. "Dr. Jacob Mahaffey." Round Funded investor database, updated September 22, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/dr-jacob-mahaffey

Frequently Asked Questions

Who is Dr. Jacob Mahaffey?

Dr. Jacob Mahaffey, Managing Partner at Grind Ventures is an active investor based in Tulsa, Oklahoma. Dr. Jacob Mahaffey invests in Healthcare & Biotech, MedTech & Medical Devices and Digital Health & HealthTech, typically at Seed and Early Stage Venture.

What does Dr. Jacob Mahaffey invest in?

Dr. Jacob Mahaffey invests in Healthcare & Biotech, MedTech & Medical Devices and Digital Health & HealthTech, typically at Seed and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

What stage does Dr. Jacob Mahaffey invest at?

Dr. Jacob Mahaffey typically invests at Seed and Early Stage Venture. Lead with traction that fits the stage when you reach out.

What is Dr. Jacob Mahaffey's typical check size?

Dr. Jacob Mahaffey typically writes checks around $375K. Use it as a signal for whether your raise fits their stage.

Where is Dr. Jacob Mahaffey based?

Dr. Jacob Mahaffey is based in Tulsa, Oklahoma.

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.

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