Bridge Round
What is Bridge Round?
A bridge round is short-term financing—typically $500K-$3M—used to fund operations while closing a larger Series A or B round. It buys runway between rounds and is usually structured as a convertible note or SAFE that converts into equity when the institutional round closes. Bridge investors typically accept higher discounts (20-30%) and laxer terms than they would on a formal round because they're taking on speed and uncertainty risk.
Why It Matters
Bridge rounds keep you alive when fundraising takes longer than expected. If Series A closing is 6 months away but you'll run out of cash in 3, a bridge buys time without requiring a full institutional term sheet negotiation. Bridge capital also signals momentum to future lead investors: other investors already committed to you before you closed them. However, bridges can be addictive: if you keep taking bridges instead of closing real rounds, you're likely in trouble or overextending timeline expectations. A bridge should be a tactical tool, not a fundraising crutch.
How to Apply
Only raise a bridge if you have a credible Series A path—a lead investor interested but not yet committed, serious customer conversations, or a clear metric milestone 6-8 weeks out. Approach existing investors first (seed, angel rounds) because they know you and move faster. Keep bridge rounds small and short-term (typically 12-18 months max). Negotiate caps on discount and valuation floor so you don't get crushed when Series A comes in. Use bridge proceeds to hit the next meaningful milestone: revenue target, customer win, or product feature that changes investor perception. Have a plan to graduate from bridge to institutional before taking the check.
Common Mistakes
- Taking a bridge without a realistic path to Series A—you're just delaying a difficult conversation and accumulating expensive notes on your cap table
- Raising multiple bridges in sequence—signals that you can't execute timelines or close real rounds; after 2 bridges, investors see a pattern of struggle
- Not accounting for the bridge conversion overhead—your Series A will be more diluted by bridge notes; factor this into your Series A negotiations and cap table plan
How IdeaFuel Helps
IdeaFuel's Financial Modeling tool helps you model runway and capital needs, so you can determine if a bridge round is truly necessary or if you should accelerate product milestones to close Series A sooner.