Chris Buttrum

Active Investor

Managing Partner at Mason Jar Capital

Menomonee Falls, Wisconsin

Chris Buttrum, Managing Partner at Mason Jar Capital is an active investor based in Menomonee Falls, Wisconsin. This profile covers what Chris Buttrum backs, at which stage, and how founders can reach out in 2026.

Chris Buttrum is the Founder of Sell911 / Buy911 and Managing Partner at Mason Jar Capital.

Chris Buttrum invests in Consumer & Retail and E-commerce & D2C, typically at Pre Seed and Seed.

Location
Menomonee Falls, Wisconsin
Typical check
$150K

What does Chris Buttrum invest in?

Investor type
VCAngel
Invests in
Consumer & RetailE-commerce & D2C

Where is Chris Buttrum based?

Chris Buttrum is based in Menomonee Falls, Wisconsin.

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How to reach Chris Buttrum

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About this profile

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Round Funded. "Chris Buttrum." Round Funded investor database, updated September 22, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/chris-buttrum

Frequently Asked Questions

Who is Chris Buttrum?

Chris Buttrum, Managing Partner at Mason Jar Capital is an active investor based in Menomonee Falls, Wisconsin. Chris Buttrum invests in Consumer & Retail and E-commerce & D2C, typically at Pre Seed and Seed.

What does Chris Buttrum invest in?

Chris Buttrum invests in Consumer & Retail and E-commerce & D2C, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.

What stage does Chris Buttrum invest at?

Chris Buttrum typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.

What is Chris Buttrum's typical check size?

Chris Buttrum typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.

Where is Chris Buttrum based?

Chris Buttrum is based in Menomonee Falls, Wisconsin.

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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