Seed To Series A In Five Months. The Median Is 26.
Chamelio raised a $26 million Series A five months after its seed, with ARR up four times in that window. Carta puts the median gap at 2.2 years. Here is what has to be true for the fast path, and how to plan if you are on the normal one.
On September 23, Chamelio announced a $26 million Series A. The legal AI company had closed its seed round five months earlier. In between, it says annual recurring revenue grew four times over.
Entrée Capital led. Work-Bench and Emerge Ventures came back in, and Bright Pixel Capital joined. The company was founded in 2024 by Alex Zilberman, Gal Lellouche and Gil Banyas, a former general counsel, and it now counts Wiz, monday.com, Socure and AppsFlyer among what it calls hundreds of customers.
Now the other number. Per Carta, the median time between a seed round and a Series A was 2.2 years at the end of 2024. That is roughly 26 months. Chamelio did it in five.
If you raised a seed this year, you will see a headline like this every week, and each one will make your own plan feel slow. This piece is about reading those headlines correctly and building a plan that works whichever path you end up on.
Is a five-month Series A normal now?
No. It is visible, which is different.
Carta's own data shows the pattern. In a fairly ordinary year like 2018, something like 25 to 30 percent of seed-funded startups raised a Series A within 24 months. For companies that raised seed rounds in 2022, only about 17 percent had made it inside two years. Peter Walker, who runs Carta's insights team, called those cohorts lost vintages.
Rounds like Chamelio's get covered because they are unusual. The companies taking 30 months do not issue press releases about month 19. So the sample you see in your feed is tilted hard toward the fast end.
That does not make the fast path fake. It makes it a tail. Plan for the middle and build the conditions that let you move early if the tail finds you.
What actually had to be true for Chamelio?
Read the announcement closely and three conditions show up, none of them about the pitch deck.
First, growth that compounds inside one quarter. Four times ARR in five months is not a trend line an investor has to squint at. It is visible in the bank statements.
Second, a buyer with a budget line that already exists. In-house legal teams already pay for contract lifecycle software. Chamelio is not asking anyone to invent a category of spend. It is asking them to move spend from older tools to a new one, and it says part of the new money funds the migration technology that makes that switch easier.
Third, named customers a Series A investor can call. Wiz and monday.com are companies a partner can reach through their own network by Friday. Reference checks that take a day shorten a round by weeks.
Notice what is missing. Nothing here depends on a hot market or a famous founder. The existing investors re-upping matters too. When your seed lead writes a second check, it tells the new lead that the people with the most information still want more.
Does fast fundraising mean you should raise early?
Only if the round is pulling you, not the other way around.
There are two kinds of early Series A. In one, investors show up because the numbers are moving and they worry about the price next quarter. In the other, a founder goes out early because the runway looks short or because a peer just announced. The first gets done in weeks. The second tends to stall, and a stalled Series A is worse than no Series A, because every investor who passed will remember the valuation you asked for.
A useful test: are inbound conversations already happening without you starting them? If three or more firms have asked for a call in the last month, the market may be telling you something. If you would have to start cold outreach, you are in the second kind, and the better move is usually to extend runway and let the numbers get louder.
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How do you plan for the 26-month path?
Assume the median, then budget for a bit worse.
Start from your current monthly net burn and work out how many months your bank balance covers. If the answer is under 24, you have a planning problem today, not in a year. Most first-time founders underestimate how long the raise itself takes. Three to six months from first meeting to wired money is common, so the real deadline for starting a Series A process is roughly month 18 of a 24-month runway.
Then map the milestones a Series A lead in your category will expect to see, and work backwards to monthly targets. Put the revenue model, the hiring plan and the fundraising timeline in one place so a change in one shows up in the others. A spreadsheet can do this. Some founders use a planning tool like Foundra, which keeps the financial model, the milestones and the raise plan in the same workspace so a slipped hire shows up as a slipped runway date instead of a surprise in month 17.
Finally, write down a bridge trigger. The day your projected runway at the current pace drops below nine months, you either cut burn or start talking to existing investors about an extension. Decide the number now, while you are calm.
Which metrics tend to pull a Series A forward?
There is no universal threshold, and any post that gives you one number is guessing. But across announcements like Chamelio's, a few signals keep showing up.
Revenue growth measured over a short window. Month-over-month growth that holds for two or three quarters says more than a single big contract.
Retention you can show by cohort. If customers who started in January are paying more in September than they did in March, that is expansion revenue, and it is the metric Series A investors lean on most when the absolute numbers are still small.
Sales cycles that are getting shorter. If your first deal took four months and your latest took three weeks, the product is finding its buyer.
A clear reason the spend already exists. Replacing a line item is easier to underwrite than creating one.
Customer references that a partner can reach without you in the room.
If you can show four of these five, you are in a stronger position than the calendar suggests.
What should you do this week?
Five things, none of them requiring an investor meeting.
- Calculate your runway in months at current net burn. Write the number on a sticky note.
- Subtract six. That is the latest month you can start a Series A process without desperation.
- Pick the three metrics from the list above that you are closest to, and set a monthly target for each.
- Ask your seed lead one direct question: what would you need to see to invest again? Their answer is the closest thing you have to a Series A checklist.
- Stop comparing your timeline to press releases. Compare it to your own targets from step three.
Chamelio's round is good news. It shows the fast path still exists for companies whose numbers are moving. It is not a deadline for yours.
What does a stalled round actually cost?
More than time, and founders tend to count only the time.
A Series A process that runs past three months starts to get a reputation. Partners talk to each other. When a new firm hears you have been out for four months, the first question is why nobody has led, and the answer rarely helps you.
It also costs attention. A founder running a long raise is not selling, hiring or shipping at full speed, so the metrics that would have closed the round get weaker while the round drags. That is the loop to avoid.
The fix is boring. Go out with a short list, a clear date and numbers that are already moving, or wait until they are. A round that closes in six weeks at a fair price beats a round that closes in six months at a price you had to walk down twice.
Frequently asked questions
How long does it usually take to go from seed to Series A? Carta data put the median at 2.2 years at the end of 2024, roughly 26 months. Some reports put it longer depending on the cohort and the sector.
What percentage of seed startups raise a Series A within two years? Carta estimated 25 to 30 percent in a normal year such as 2018, and about 17 percent for the 2022 seed cohort.
Is it bad to raise a Series A too early? It can be. A round that stalls leaves a record of your asking price with every firm that passed. Raising early works when investors are approaching you, not when you are chasing them.
Should my seed investors join my Series A? Their participation is a strong signal to new investors, because they have the most information about your company. It is not required, but it helps.
What if I am at month 18 and not ready? Talk to existing investors about an extension before you need one, cut burn where you can, and set clear milestones for the next six months so the eventual pitch has a story.
Sources
- Chamelio raises $26M Series A for AI legal agents as ARR quadruples in five months, Tech Startups, September 23, 2026
- Chamelio Raises $26M Series A to Replace Legacy CLM with AI-Native In-House Legal Operations, PR Newswire
- Graduation rate from seed to Series A, Carta Data Minute
- Carta: The Average Time from Seed to Series A Has Hit 2.2 Years, SaaStr
- Startup Funding News Today, September 23, 2026, Tech Startups
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