Startups raise again quickly when their progress outpaces the valuation of their last round. Runway has little to do with it. Here is what the fastest raisers of the past year did, and how to build that speed into your own company.
The median US startup waited 28 months between its Series A and its Series B in 2024, the longest gap Crunchbase had recorded since 2012.
Now look at a different list.
Lovable raised a $200M Series A in July 2025 and a $330M Series B five months later.
Harvey raised three times in 2025: in February, in June and in December.
Stuut announced a $52.5M Series B last week, ten months after its Series A.
Monid raised a $7.7M seed last week, five weeks after a $2.1M pre-seed.
None of these gaps fit a runway story. Five weeks is too short to spend a pre-seed. Five months isn't enough time to spend $200M.
Startups raise again fast when their progress outruns the price of their last round.
What the fast raisers had in common
Lovable. The company says it reached $100M in annual recurring revenue within eight months of launch, then doubled it in about four more. Its valuation rose from $1.8B at Series A to $6.6B at Series B, led by CapitalG and Menlo Ventures. Eight months later, in August 2026, Menlo led a $400M Series C at $13.3B. Lovable said its ARR had nearly tripled since the Series B.
Harvey. Sequoia led a $300M Series D at $3B in February 2025. A $300M Series E followed in June at $5B. Andreessen Horowitz led a $160M round at $8B in December. In between, Harvey said it passed $100M in ARR.
Stuut. Insight Partners led the Series B, and Andreessen Horowitz came back. Stuut said revenue grew more than 90% quarter over quarter, across more than 150 customers, including Honeywell, ZoomInfo, and Verifone.
Monid. A $2.1M pre-seed, then a $7.7M seed led by Long Journey Ventures five weeks later.
Different stages, different sizes, different sectors. One pattern.
Where the companies shared their numbers, the story is the same: new evidence arrived faster than the last price could absorb. The round closed on one set of facts. A few months later the facts had moved so far that the old price no longer described the company.
The invisible clock
Founders plan the next raise around runway. Eighteen months of cash; start fundraising at month twelve. That’s the visible clock.
A second clock exists, and investors watch it more closely. It measures the distance between what your last price assumed and what your company has since become.
In Invisible Game, I wrote that the next round starts the moment you close the current round. The fast raisers show what that looks like at full speed. The day the round closes, the price becomes a snapshot. Every month of strong progress ages the snapshot.
When the gap gets wide enough, two people notice before anyone else.
The first is your existing investor. They see your numbers every month. They know that each month they wait, someone else may price the company higher and dilute the share they could have bought. That’s how an insider ends up leading the next round. Menlo led Lovable’s Series B and came back eight months later to lead the Series C.
The second is the investor who passed last time. Few things sting more in venture than watching a company you declined reprice twice in a year. Loss aversion, the same force I describe in the book’s chapter on investor psychology, now works for the founder. The question in the partner meeting shifts from “is this real?” to “can we still get in?”
That’s when a company stops raising and starts being offered money.
The honest caveat
Speed carries its own risk.
Reporting on Harvey’s third round noted that its valuation grew faster than the revenue it disclosed, raising the question of a bubble. A fast round can reflect real momentum. It can also reflect investors racing each other on a story.
And every fast round sets the next bar higher, faster. A company that triples its price in five months has to keep producing evidence at that pace, or the next investor will see the gap open the other way.
The fast raisers earned their speed with evidence the next investor could check: revenue figures, named customers, growth rates. That’s what separates momentum from hype when the next round arrives.
What founders miss
Most founders raise when they need to. The fast raisers raised when they could.
Raising on the runway clock means you walk in with the clock against you. Investors can see your cash position as well as you can, and time pressure shifts power to the side of the table that can wait.
Raising on the evidence clock means you walk in with the gap in your favor. You have money in the bank, and the old price is visibly wrong in the direction everyone wants.
You can’t control how fast the market moves. You can control how quickly you produce facts, and who is watching when you do.
New rules
Track the gap, not the runway. Know at any moment how far your company has moved past what the last price assumed.
Your insiders see it first. Keep them close enough to want to lead.
Keep the investors who passed in the loop. Their regret is your fastest next round.
Raise from strength. Start the next conversation while you still have a year of cash.
Below is the playbook for building that speed into your own company.
