What Is a Bridge Round?
A bridge round is interim financing raised between two priced rounds — usually after a seed or Series A but before the next priced round is ready. It is typically structured as convertible notes or SAFEs rather than priced equity, precisely because the company wants to defer the valuation question: terms are set now, the price is set later when the round converts. Bridges are smaller and faster than full rounds, often $1-3M and closed in weeks.
Bridges exist because fundraising cycles rarely line up with capital needs. A company might need 6-12 more months to hit the milestones that justify a higher Series A price — more revenue, a bigger customer base, a stronger product — and a bridge buys exactly that time. Used deliberately, a bridge is a financing tactic, not a distress signal.
How Bridges Are Structured
- Convertible notes: a loan that converts into equity at the next round, usually with a discount (often 15-25%) and sometimes a valuation cap.
- SAFEs: a simple agreement for future equity that converts on the next priced round, typically with a cap and discount but no interest.
- Priced bridges: a small priced round at a fixed valuation, used when existing investors want certainty rather than conversion mechanics.
- Existing-investor led: bridges are usually raised from the current cap table first, since they already know the company and can move fast.
Why Investors Should Care
For angels and scouts, a bridge is an opportunity and a test. The opportunity: bridges often come with discounts and caps that reward early conviction. The test: a bridge that fails to convert — because milestones slip or the next round never comes — leaves paper that can be hard to exit. Diligence on bridge deals should focus on the milestone plan: what specifically must be true in 6-12 months, and what happens if it is not.
Spotting Bridge Activity Early
Bridge rounds are rarely announced, but their preparation often shows up in public signals: teams shipping hard to hit milestones, hiring in bursts, and expanding their repositories. GitDealFlow detects this pattern — engineering velocity often spikes as teams work toward the milestones that unlock the next priced round — across 4,200+ startups, giving investors early visibility into companies that are quietly extending their runway.
Frequently Asked Questions
When do startups need bridge rounds?
When they need 6-12 more months to hit milestones for the next priced round. GitDealFlow detects bridge-round preparation: engineering velocity often spikes as teams ship hard to meet milestones.
Are bridge rounds bad?
Not inherently. Many great companies used bridge rounds. They're a signal that the company needs more time, not that it's failing.
What is the difference between a bridge and a flat round?
A bridge defers pricing until a future round and usually carries a discount or cap as compensation. A flat round is priced now at roughly the previous valuation — simpler, but it formally resets the price.
Who typically invests in bridge rounds?
Existing investors — angels, seed funds, and founders' networks — because they have context, speed, and the most to protect. New investors are sometimes invited for strategic reasons.