Rockstart
How to get into Rockstart according to the founders who pulled it off
Our take
Best if you are an early-stage agrifood or energy founder who wants Rockstart's sector-deep mentors, a first check, and an investor that keeps backing you. A weak trade if you sit outside those sectors, have traction and only want capital, or won't give up 6 to 8% plus a program fee from the cash.
Acceptance
~8%
Equity
6-8%
Funding
€20K
Duration
5 months
Stage
Pre-Seed to Seed
HQ
Amsterdam
We asked the founders how Rockstart really went.
Every interview behind this page is one we ran ourselves. The numbers and quotes come straight from founders who went through Rockstart, in their own words.
Who Rockstart is for, and who should skip it.
Best for
- You are early stage in agrifood, agritech, or energy and want mentors who actually know your sector
- You want a first check plus an investor who keeps backing you through later rounds
- You would rather run your business and dip into one intensive week a month than pause everything for a full-time cohort
- You value sector introductions and customer discovery over a big upfront cheque
Skip it if
- You already have real traction and only need capital, not a program
- You work outside food, agriculture, energy, and the sectors where Rockstart's network runs deep
- You do not want to give up 6 to 8% equity or pay a program fee out of the cash
- You want a free accelerator, since Rockstart is one of the few that charges
What it's actually like at Rockstart
Rockstart does not cram everything into a frantic few weeks. The program runs across roughly five to six months, built around one intensive deep-dive week each month, with the rest of your time spent running the business. For founders who cannot drop everything to sit in a full-time cohort, that rhythm is the whole appeal.
The deep-dive weeks are dense. Scott Gillam, who came through with the renewable-energy marketplace PF Nexus, described the pace bluntly.
The program is intense. One full-time week per month, every month, and they pack it.
What founders kept coming back to was the spacing. Instead of one long sprint, each month tackles a different problem while the company keeps moving in between. Rian McDonnell, who ran the protein-analytics startup FloVision Solutions through the program, said that was exactly why he signed up.
Most accelerators compress everything into a sprint. Rockstart's program ran over six months with one intensive week each month, so we could take on a different problem in each block and keep shipping the business in between.
The piece founders remembered most was the people. The mentoring is hands-on and the Rockstart team stays close, stepping in fast when a pairing is not working. Deepak Rajmohan, who built the post-harvest biotech GreenPod Labs, captured how that felt in practice.
Sessions were so dense I'd walk out with pages of notes. The Rockstart team itself stayed close to founders too. If a mentor relationship wasn't working, they'd step in fast.
The access is not handed out evenly. The founders who got the most out of Rockstart were the ones who pulled hard on the network and the resources, asked for the intros, and put the mentor time to work. Show up passive and the months slide by without much to show for them.
What you give and what actually reaches the company
The headline package is around €100,000, but how much of it lands as cash and how it is structured varies deal by deal. A common shape is roughly €35,000 in cash with the rest covering the program itself, the mentoring and resources. The equity ends up near 6 to 8%, often through a convertible loan or note that converts when you close your next round.
We received 100,000 Euros in funding, for around 6 to 7% equity.
The figure flexes with the company. Climate Farmers took €165,000, which its founder noted was low for Rockstart since it usually writes at least €1 million, and Mooofarm picked up a €500,000 term sheet on demo day with Rockstart writing half of it. The honest catch is that the program is not free, and that is the thing founders flag most. Ivo Degn, who ran Climate Farmers through eleven accelerators, was blunt about it.
It was the only one out of 11 programs we did that charged (€65,000), and it didn't feel worth that money compared to the free accelerators we'd been through.
Most founders still rated the deal worth it, but for reasons beyond the check. Rockstart kept showing up after the program with intros and follow-on capital, re-investing in later rounds for companies like FloVision and Mooofarm. The real return founders pointed to was the sector network and the investor who stayed on the cap table, not the cash that reached the account on day one.
How founders actually got in
The application starts with a form and moves into several rounds of interviews, usually with five or six mentors. The interviews read less like a grilling on your deck and more like a search for mutual fit between you and the mentors who might back you. Competition is steep. Thousands of startups apply for about ten spots, and even in the quieter agrifood cohorts Param Singh watched over a hundred companies chase roughly seven places.
The founders who got in did their homework first. Here is what they said actually moved the needle.
- Research the mentors before you talk to them, their articles, their past work, the companies they have backed
- Treat the interviews as a two-way fit check, the mentors are reading mutual interest as much as your idea
- Talk to a dozen founders who have already been through Rockstart before you commit
- Come in with a strong team and a sharp read on your sector and the problem you are solving
- Do not let the competition scare you off, the process has checks and balances at every stage
One thing surprised founders in a good way, how reachable the team stayed during a process that could have felt opaque. Param Singh, who built the agritech Mooofarm, said the open line made the difference.
The part that stood out was how reachable the Rockstart team was the whole way through. We could ping them with questions during the application itself, which made a competitive process feel much less opaque.
The founders we talked to.
Alumni include Bux, Wercker (acq. Oracle), Peerby, Tiqets.
Want the mentorship without the accelerator?
An accelerator's real value is the people who have done it before. GrowthMentor gives you that on its own. Unlimited 1:1 calls with founders and operators, $50 to $150 a month, no equity, no program fee skimmed off the top.
RecommendedFormat
Live 1:1 calls, on demand- Rockstart
- 5 to 6 month cohort, one week a month
Cost
$50-150/mo, no equity- Rockstart
- €100K for 6 to 8% equity
Time to value
Same day- Rockstart
- 5 to 6 months
Commitment
None, cancel anytime- Rockstart
- One intensive week a month, no relocation
Selectivity
Open to every member- Rockstart
- ~8% accepted
The network
750+ vetted operators- Rockstart
- Deep agrifood and energy mentors
What you get
The right person for each problem- Rockstart
- A sector network and follow-on capital
$50 to $150 a month · no equity.
Questions founders ask about Rockstart.
Around 8%. Founders described thousands of startups applying for roughly ten spots, and in the agrifood cohorts one founder saw over a hundred companies compete for about seven places. Selection runs through an application form and several interviews with five or six mentors, weighted heavily toward founder and mentor fit.
Usually 6 to 8%, in exchange for a package worth around €100,000. Only part of that reaches the company as cash, often near €35,000, with the rest covering the program and mentoring, and the investment is frequently structured as a convertible loan or note that converts to equity at your next round.
Rockstart runs a sector-focused program of about five to six months for agrifood, energy, and adjacent startups. You work through one intensive deep-dive week a month of workshops and mentoring and run your business the rest of the time, with sector-specific mentors, a first check, and follow-on capital if the company performs.
Around five to six months, structured as one deep-dive week each month rather than a full-time sprint. Founders described roughly four months of dense learning inside that window, building toward a demo day, while keeping the business running between intensive weeks.
It depends on your sector and stage. Founders in food, agriculture, and energy said the domain-specific mentors, the network, and the follow-on investment were hard to find elsewhere, and several would do it again. If you sit outside those sectors or only want capital without a program fee, the trade is weaker.
