Pre-seed accelerators invest a fixed amount in very early startups for a fixed slice of equity, plus training and investor access. As of September 2026, published checks range from $100K (1752vc's Accelerate) to up to $1M (a16z speedrun), and fixed stakes run from 5 to 10 percent before any MFN SAFE converts. In our view, a good fit is a program whose capital and support are worth more than the ownership you give up.
Definition: A pre-seed accelerator is a time-limited program that invests in companies at the idea-to-early-traction stage on standard, non-negotiated terms, usually a SAFE or similar instrument.
An accelerator deal is a price. Plenty of founders skip the division.
How pre-seed accelerator deals are structured
Most pre-seed accelerator deals have up to two parts:
- A fixed-percentage piece. A set amount buys a set stake, for example $125,000 for 7 percent. Dividing one by the other shows the valuation the program is implicitly putting on your company.
- A follow-on piece. Often an uncapped MFN SAFE, which has no valuation cap of its own and converts on the best terms you later give other SAFE investors. Its final stake is unknown until your next round.
Some programs add other features: a program fee, a common stock grant instead of a SAFE, or a promise to invest again in your next round. For the basics of how accelerators work, start with our pillar guide to startup accelerators.
Pre-seed accelerator check sizes and equity (September 2026)
These terms come from each program's own site as of September 2026. Terms change, so confirm before applying.
| Program | Total check | Equity and instrument | Implied valuation of fixed piece |
|---|---|---|---|
| Y Combinator | $500K | $125K post-money SAFE for 7%, plus $375K uncapped MFN SAFE | About $1.8M |
| a16z speedrun | Up to $1M | $500K for 10% on a SAFE, plus $500K in your next round within 18 months | $5M |
| Entrepreneurs First (US) | Up to $250K | $125K post-money SAFE for 8%, plus optional $125K uncapped MFN SAFE | About $1.6M |
| Berkeley SkyDeck | $210K | 7.25% on a post-money cap SAFE or other form; $7.5K program fee | About $2.9M |
| Techstars | $220K | $20K CEA for 5% common stock, plus $200K uncapped MFN SAFE | Not comparable (common stock) |
| Antler (US) | $500K to $1M | Terms not detailed on its US page | Not published |
| 1752vc Accelerate | $100K | Investment at a valuation cap of up to $3.5M | Cap of up to $3.5M |
Notes on the table:
- Implied valuation is the fixed check divided by the fixed stake: $125,000 / 7% is about $1.79M, $500,000 / 10% is $5M, $125,000 / 8% is about $1.56M, and $210,000 / 7.25% is about $2.9M. Treat it as a rough benchmark, not the price your next investors will pay.
- Berkeley SkyDeck's program page lists a $210,000 investment, while its homepage still says $200,000, so confirm the current figure before you model it.
- Techstars' $20,000 Convertible Equity Agreement converts into 5 percent common stock at a priced round of at least $1M. Asia-Pacific programs pair it with a $100,000 MFN SAFE instead of $200,000.
- Entrepreneurs First (EF, long known as Entrepreneur First) says its second $125,000, from EF and a partner, is optional and available if you relocate to San Francisco and incorporate as a Delaware C-Corp.
- a16z speedrun also offers more than $10M in cloud, AI and software credits, takes no board seat, and asks companies to set aside an option pool.
Illustrative example: what an accelerator deal can cost
The fixed piece is the easy part. The MFN piece is where founders get surprised. Say you take the YC deal, then raise seed SAFEs at a $12.5M post-money cap.
- Fixed piece: 7 percent for $125,000.
- MFN piece: the $375,000 uncapped MFN SAFE converts at the $12.5M cap: $375,000 / $12.5M = 3 percent.
- Total from the program: about 10 percent before later dilution, for $500,000 in cash.
YC's own example uses a $15M cap, which makes the MFN piece 2.5 percent. The lower your next cap, the bigger the MFN stake, so it is worth modeling two or three scenarios.
Run the same steps for Techstars: at a $10M cap, the $200,000 MFN SAFE converts into 2 percent, plus 5 percent common from the CEA, for about 7 percent in total. Our guide to how SAFEs impact dilution shows how these layers stack with your other investors.
How much runway does a pre-seed accelerator check buy?
Divide the check by your monthly net burn:
- $100,000 at $10,000 a month is 10 months.
- $250,000 at $25,000 a month is 10 months.
- $500,000 at $40,000 a month is 12.5 months.
"Just take the biggest check"
It's a tempting rule. More money means more runway, more hires, more shots on goal. A bigger check from a famous program can also make the next round easier to raise.
But a large check at a low implied valuation can cost more ownership than it's worth if you could raise on better terms yourself. And more cash this early isn't free in other ways: we've argued that too much money at pre-seed can erode discipline. A small check with strong training and investor access can still be the better deal if it helps you raise your seed round sooner. Our suggestion: put the runway and the implied valuation side by side, then decide.
Format: which pre-seed accelerators work for remote teams?
Check sizes are only half the decision. As of September 2026:
- In person: a16z speedrun requires on-site attendance in San Francisco, EF's US founders live in its San Francisco residency for the first three months, SkyDeck is based in Berkeley, and Antler's US residency is in person in San Francisco, New York City or Austin.
- Remote-first: Techstars Anywhere requires no relocation, with three in-person offsites. 1752vc's Accelerate is remote-first with optional in-person events, and our Techstars vs. 1752vc comparison sets the two side by side.
If moving to San Francisco for three months would stall your company, that answers a lot of the question. Y Combinator's format, and more programs you can join without moving, are covered in our list of remote accelerators and global programs.
1752vc Accelerate for pre-seed teams
Accelerate is 1752vc's flagship program for early-stage startups ready to grow. It invests $100K, is remote-first, and centers on founder-led go-to-market and sales training, with access to a network of 850+ investors. Admissions are rolling, so you begin when you are accepted rather than waiting for a batch. If your biggest gap is selling, compare it with other accelerators that offer founder-led sales training.
How to evaluate a pre-seed accelerator offer: a simple checklist
- Calculate the implied valuation of the fixed piece and compare it with what you could raise on your own.
- Model the MFN SAFE at two or three realistic next-round caps.
- Add any fees (such as SkyDeck's program fee) and any option pool request.
- Calculate runway in months at your current burn.
- Confirm the format and whether every founder can attend.
- Talk to recent alumni about how investor introductions actually happen.
Before you apply, run your deck through 1752vc's Pitch Deck Analyzer for slide-by-slide feedback, and read our pre-seed funding investor guide to see how reviewers judge this stage.
The bottom line
The right program is the one whose help you'd pay for, because you are paying for it, in equity. Do the division, model the MFN, and ask alumni what the network actually did for them.
The check is what they give you.
The stake is what it costs.
Key takeaways
- Pre-seed accelerators combine a fixed-percentage investment with, often, an uncapped MFN SAFE whose final stake depends on your next round.
- As of September 2026, published checks range from $100K (1752vc Accelerate) to up to $1M (a16z speedrun and, at the top of its range, Antler US).
- Dividing the fixed check by the fixed stake gives an implied valuation, from about $1.6M (EF) to $5M (speedrun).
- Techstars' 5 percent is common stock through a CEA, and SkyDeck adds a $7.5K program fee, so compare the fine print.
- Most well-known pre-seed programs are in person; Techstars Anywhere and 1752vc's Accelerate are remote-first.
Frequently asked questions
It varies widely. As of September 2026, 1752vc's Accelerate invests $100K, SkyDeck $210K, Techstars $220K, Entrepreneurs First up to $250K in the US, Y Combinator $500K, Antler US $500K to $1M, and a16z speedrun up to $1M. It is worth confirming the current figure on the program's site.
Fixed stakes usually fall between 5 and 10 percent: Techstars takes 5 percent common, YC 7 percent, SkyDeck 7.25 percent, EF 8 percent and a16z speedrun 10 percent. Programs that add an uncapped MFN SAFE take more once it converts, so it helps to model the total at your likely next-round cap.
It is a SAFE with no valuation cap or discount of its own. Its "most favored nation" clause lets it convert on the best terms you later give other SAFE investors, such as the lowest cap. YC's example: at a $15M post-money cap, its $375,000 MFN SAFE converts into 2.5 percent.
Divide the fixed check by the fixed stake. YC's $125,000 for 7 percent implies about $1.8M post-money, and a16z speedrun's $500,000 for 10 percent implies $5M. This is a benchmark for the program's piece only, not a price that binds your next investors.
It depends on your situation. An accelerator often makes sense if its training, network and brand will help you raise more, faster, on better terms than you could alone. If you already have strong investor interest and could raise at a higher valuation than the program implies, raising directly may cost you less ownership.
Sources
Disclaimer: This guide is for general education only and is not legal, tax or investment advice. Laws, market data and program terms change, so it may not reflect the latest developments or fit your situation. Treat it as a starting point, not a source of truth, and talk to a qualified lawyer, accountant or financial adviser before you make decisions.
