Ernst Theodor Sack is a Partner at Blue Bear Capital, where he helps manage the firm's investment activities.
What Ernst can write
Blue Bear Capital writes $500K to $10M checks, larger than 71% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: Blue Bear Capital.Career
- Citigroup
- Riverstone
- Blue Bear Capital · PartnerNow
Companies founded
Investments named in public bios
Focus
Education
Also at Blue Bear Capital
Partners like Ernst
At firms with a similar stage, sector and check size.
Alert me when Blue Bear Capital is active
One email when Ernst's firm raises a fund, adds a partner or shows new activity.
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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 Ernst Theodor Sack?
Ernst Theodor Sack is a Partner at Blue Bear Capital, where he helps manage the firm's investment activities.
How much does Ernst Theodor Sack invest?
Ernst Theodor Sack invests through Blue Bear Capital, which writes checks of $500K to $10M at seed, series a.
How do I pitch Ernst Theodor Sack?
Email [email protected], the firm's inbox for founders, and name Ernst in the subject. A warm intro from a founder Blue Bear Capital backed works better.
What did Ernst Theodor Sack do before Blue Bear Capital?
Citigroup; Riverstone.
Last updated 2026-10-15. Is this you? Ask for a correction.