Haley Brannan is a partner at Operator Collective, investing in early-stage B2B software founders. She previously held roles at data.world, Unusual Ventures, and EY, and founded Forget-Me-Not.
What Haley can write
Operator Collective writes $500K to $3M checks, larger than 71% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: Operator Collective.Career
- EY · Certified Public Accountant
- Forget-Me-Not · founder
- Unusual Ventures · founding investment team member
- data.world · VP of Business Operations
- Operator Collective · PartnerNow
Companies founded
Investments named in public bios
Focus
Education
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One email when Haley'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 Haley Brannan?
Haley Brannan is a partner at Operator Collective, investing in early-stage B2B software founders. She previously held roles at data.world, Unusual Ventures, and EY, and founded Forget-Me-Not.
How much does Haley Brannan invest?
Haley Brannan invests through Operator Collective, which writes checks of $500K to $3M at seed, series a.
How do I pitch Haley Brannan?
Email [email protected], the firm's inbox for founders, and name Haley in the subject. A warm intro from a founder Operator Collective backed works better.
What did Haley Brannan do before Operator Collective?
Certified Public Accountant at EY; founder at Forget-Me-Not; founding investment team member at Unusual Ventures; VP of Business Operations at data.world.
Last updated 2026-10-15. Is this you? Ask for a correction.