Matthew Klein joined Massive as Partner in February 2026. He has over a decade of experience in entrepreneurship, venture investing, and advisory work.
What Matthew can write
Massive writes $1M to $3M checks, larger than 83% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: Massive.Focus
Before you pitch
Also at Massive
Partners like Matthew
At firms with a similar stage, sector and check size.
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One email when Matthew's firm raises a fund, adds a partner or shows new activity.
Send Mode VC your deck
Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
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Who is Matthew Klein?
Matthew Klein joined Massive as Partner in February 2026. He has over a decade of experience in entrepreneurship, venture investing, and advisory work.
How much does Matthew Klein invest?
Matthew Klein invests through Massive, which writes checks of $1M to $3M at seed, series a, series b.
How do I pitch Matthew Klein?
Email [email protected], the firm's inbox for founders, and name Matthew in the subject. A warm intro from a founder Massive backed works better.
Last updated 2026-10-15. Is this you? Ask for a correction.