How to get into an accelerator: The application and deck, Red-Penned

What programs screen for, what to write, and what to fix before you hit submit.

Last updated November 1, 2026. Not affiliated with any accelerator.

To get into an accelerator, show a reviewer three things fast: a team that can build, evidence the problem is real, and a reason to take you now. Answer every application question in plain, specific language, and send a short deck that backs each claim with a number or a named customer.

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What accelerators screen for

Programs differ, but reviewers tend to read for the same six things. Treat this as a checklist for your own application.

Team

Can these founders build this and sell it? Reviewers look for relevant experience, a reason you are the ones to solve this, and signs you work well together.

Problem and customer

A named customer with a painful, specific problem beats a big market slide. Say who hurts, how often, and what they do today.

Progress

Programs back momentum. A shipped product, paying or active users, or a fast cycle of customer calls all count. Show what changed in the last few months.

Market and ambition

Can this become a large company? You do not need a perfect market model, but the path from first customers to a big outcome should be believable.

Fit with the program

Each program has a focus, a stage and a style. Applying to one that matches your stage, sector or region reads as intent, not spray and pray.

Coachability and speed

Accelerators compress time. Reviewers want founders who take feedback, decide quickly and ship.

Browse accelerators in the directory to find programs that match your stage and sector.

The application questions

Forms change every cycle, so read the live form. What follows is general guidance on the questions most programs ask, not a copy of any program's form.

Questions almost every program asks

What does your company do?

One sentence a stranger can repeat. Name the customer and the job you do for them. Cut adjectives.

What problem do you solve, and for whom?

Pick one customer and one problem. Include how they cope today and what that costs them.

What traction do you have?

Real numbers with a time frame: users, revenue, pilots, waitlist, calls held. If it is early, say so and show the learning.

Who are your competitors, and why will you win?

Name real alternatives, including doing nothing. Say what you do differently and why that matters to the customer.

How will you make money?

Who pays, how much, and how often. A simple price and a reason it fits the customer's budget.

Why this team?

What have you done that makes you credible on this problem, and who builds what.

What will you do with the program?

Name two or three concrete goals for the term, such as first ten paying customers or a seed-ready deck.

Y Combinator-style questions

Programs in this style favor short, plain answers about the product and what you have learned from users.

  • What the company makes, in plain words, plus a short demo or product link.
  • How far along you are: is it built, how many users, how long you have worked on it.
  • Why you picked this idea, and what you understand about the space that others do not.
  • How you know people want it, and what you learned from talking to users.
  • How you make or will make money, and how large that could get.
  • Who writes the code, and how long the founders have known each other.
  • A short founder video, if the form asks for one.

Techstars-style questions

Programs in this style lean on team, traction, and what you want from the mentor network.

  • Company and team basics: who is on the team, full or part time, and relevant background.
  • Traction and milestones: what you have shipped and what you plan to hit next.
  • Market and customer: who buys, how you reach them, and why now.
  • Fundraising status: what you have raised, what you plan to raise, and from whom.
  • Why this program: what you want from mentors and the network, stated specifically.

The deck that gets you in

Keep it short and in this order. Each slide links to a full guide with what investors look for and the red flags.

1

Problem

Open here. One customer, one painful problem, in their words if you have them.

2

Solution

What you built and why it is better than what they use now. One screenshot beats a paragraph.

3

Product

Show the real product. Reviewers trust a working demo more than a roadmap.

4

Market

Bottom-up: who you can sell to first and what each customer pays. Skip the top-down trillion.

5

Traction

The slide that gets you the interview. Numbers, dates, named customers.

6

Competition

Be honest about alternatives and say why customers pick you.

7

Team

Why you, specifically. Lead with what you have built, not logos.

8

Financials

Simple: current burn, runway, and what the program and any investment unlock.

9

Ask

Say what you want from the program: goals for the term, not just money.

See the full slide-by-slide guide and how investors read decks.

Common Red Pen notes on application decks

Too long

Reviewers skim. If the first three slides do not tell them what you do, for whom, and what is working, the rest will not get read. Aim for a short deck.

Vision before proof

Opening with the future of your industry instead of the customer and the problem. Lead with the problem, then show progress.

No numbers

Words like 'strong growth' and 'many users' get circled. Replace each with a number and a time frame.

Top-down market size

'One percent of a huge market' is a classic Red Pen note. Build the market from your first customer up.

Competitors: none

There are always alternatives, including spreadsheets and doing nothing. Name them.

Team slide full of logos

Say what each founder built or sold, and who does what. Skip the list of every past employer.

Application and deck disagree

A different user count or a different pitch in the form and the deck makes reviewers doubt both. Use one set of facts.

Generic 'why us'

Copy-pasted answers to 'why this program' are easy to spot. Name what you want and why this program is the place.

Timeline

Cycles and deadlines differ by program, so use this as a planning shape and confirm dates on each program's page.

  1. 01

    Application

    Send the form and a short deck that tell the same story.

    Red-pen the application deck before you submit

  2. 02

    Screening and interviews

    Programs run their own review cycles and many follow with interviews. Keep shipping and be ready to send a short update.

  3. 03

    The cohort

    If you get in, you work with mentors on the same deck over the program.

    Re-check the deck with the Red Pen every week

  4. 04

    Demo day

    You pitch to the investors the program invites.

    Red-pen the demo-day deck before investors see it

Not every program has every step, and the order and names differ. The Red Pen marks are where an outside read helps most.

  1. Several months before the deadline

    Pick programs that match your stage and sector. Read each one's terms, equity, fee and commitment. Start talking to customers if you have not.

  2. Four to six weeks before

    Draft the application answers and the deck. Get a free instant read of the deck, fix what it flags, then ask a founder who has been through a program to review it.

  3. One to two weeks before

    Cut anything vague, align numbers across form and deck, record the video if asked, and ask for one more outside read.

  4. After you submit

    Programs run their own review cycles and many follow with interviews. Check each program's page for dates, since cycles differ. Keep shipping and be ready to send a short update on what changed.

Accelerator vs incubator

An accelerator is a fixed-term, cohort-based program for startups that already have a product. An incubator is a longer, looser program for teams still shaping an idea. If you are not sure which fits, read incubator vs accelerator.

Red-pen your application deck before you apply

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Frequently asked questions