Key takeaways
- NanoCorp is not worth $30 per month for most founders today: NanoCorp publishes a weekly update, and the July 2026 edition counts 206 companies that have ever earned anything out of 30,272 created, under 1%. The ones that earn make about $27 each over three weeks, roughly the plan price, before the 20% fee.
- The transparency is real and rare: NanoCorp puts per-business earnings, earning counts, and a public leaderboard on its homepage. Polsia shows totals only. 890 subscribers in July. $1,530 were earned by all businesses in the 30 days.
- The top earner averaged $3.44 per sale across 748 transactions: The all-time leader on the homepage sells a few dollars at a time, and the busiest storefront in NanoCorp's July 2026 weekly update sells résumé rewrites for under two dollars. The two biggest earners NanoCorp shows are cheap products sold in volume.
- No validation step exists between the idea and a live ad budget: The sample run on the homepage switches on $15 a day of Facebook & Instagram ads and lines up 40 cold emails as step one. CB Insights found 43% of startup failures since 2023 cite poor product-market fit.
- NanoCorp has no Trustpilot profile as of September 2026: The closest independent review (Alexis Bouchez, March 2026) called it "the most concrete AI agent product I have tested" but noted that auto mode did not exist at the time.
NanoCorp at a glance
NanoCorp (nanocorp.so, from Phospho Inc.) is a Y Combinator-backed autonomous AI company builder. One sentence in, a live business out: website, card payments, ads, cold emails, daily reports. What it does not do is check whether anyone wants the thing it builds.
- Origin
- PHOSPHO INC. (Y Combinator, French team)
- Founder
- Pierre-Louis Biojout (Polytechnique)
- Pricing
- $0 trial / $30/mo Founder
- Withdrawal fee
- 20% on all revenue
- 30-day earnings, all businesses
- $1,530 (15 Sep 2026)
- Companies created
- 30,272 (NanoCorp weekly update, Jul 2026)
- Yearly recurring revenue (claimed)
- Post $1M (NanoCorp blog, unaudited)
- Trustpilot
- No profile (Sep 2026)
- Best fit
- Validated ideas, fast launch
- Skip if
- Unvalidated idea, tight budget
Bottom line: a real product with rare transparency. The numbers it publishes say fewer than 1% of companies ever earn, and the ones that do make about what the plan costs. Validate before you build.
Reviewed September 15, 2026 by Vincent, founder of Preuve AI.
NanoCorp's homepage, read on 15 September 2026, reports $1,530 earned by every business on the platform in the last 30 days. Its own July weekly update counted 890 paying subscribers at $30 a month. The money on this platform flows mostly from founders to NanoCorp, not from customers to founders.
NanoCorp (nanocorp.so) is an autonomous company builder backed by Y Combinator. You type one sentence, and AI agents build a website, set up card payments, launch Facebook & Instagram ads, and email prospects. Polsia publishes live platform-wide totals. NanoCorp goes further and puts its businesses' earnings, earning counts, and a per-company leaderboard on the homepage. That transparency deserves real credit.
Disclosure: I built Preuve AI, a validation tool that sits upstream of build platforms like NanoCorp. I have bias. This review is built on NanoCorp's own published pages and the third-party reviews linked below, and every claim links to its source so you can check my work.
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What is NanoCorp?
NanoCorp is an autonomous AI company builder: a platform where AI agents create, launch, and run an entire business from a single text prompt, handling the code, payments, advertising, and customer emails without human intervention. It is built by Phospho Inc., a US company with a French team.
The YC company page lists one active founder: Pierre-Louis Biojout, applied maths and computer science at Ecole Polytechnique. The "Latest News" on that page is still phospho's January 2024 robotics launch ("give a brain to your robot"). NanoCorp is a pivot: the same Y Combinator company moved from robotics AI to building businesses.
The homepage lists backing from Y Combinator "plus angels from the teams that build this stuff," with logos for Vercel, Apple, OpenAI, Mistral, and Google DeepMind. Guillermo Rauch, Vercel's CEO, has a quote on the homepage. Those are angel affiliations NanoCorp lists, not investments by those companies.
NanoCorp's own blog claims "post $1M ARR," meaning yearly subscription income. Swanbase.co (June 2026, affiliate review with promo code SWANNC20) relays "$250,000 ARR in 19 days, $1M ARR in 55 days, no paid acquisition." Both figures are NanoCorp's own claims. Nobody outside NanoCorp has audited them.
What NanoCorp does well
NanoCorp is the most transparent platform in this category.
It publishes pricing, the withdrawal fee percentage, aggregate revenue figures, and a public leaderboard. In a category where Polsia had no public price list for months, that is not a small thing.
The build speed is real. Alexis Bouchez, in his March 2026 review, clicked "surprise me" and in under 20 minutes had a subscription product called HostGuard with a live website, two paid plans at $19 and $39, and a cold-email campaign ready to send. Zero code. He called it "the most concrete AI agent product I have tested." The agent self-corrected when he asked it to clean up duplicate tasks. Card payments get set up early.
The founding team is technical. Polytechnique plus Y Combinator plus years in robotics AI before this change of course. Support runs through contact@nanocorp.so, and NanoCorp's own copy says the engineers answer directly.
After the 3-day trial, "the site stays up, but checkout, custom domain, email, and agents pause until you pick a plan. Nothing is deleted."
Ninety-six percent of businesses on the platform ship a live site, per the homepage. The bundling is where I see the clearest value: card payments, hosting, an ad account, an email inbox, your own domain name. Setting all of that up by hand is days of work for a solo founder. NanoCorp does it in minutes.
How much does NanoCorp cost?
NanoCorp publishes pricing on nanocorp.so/pricing. Read 15 September 2026. Two tiers are shown:
| Plan | Price | Includes |
|---|---|---|
| 3-Day Trial | $0 | Everything for 3 days, 15 welcome credits, 1 business, nanocorp.app domain + email, no card |
| Founder | $30/month | 30 credits/month (roll over), unlimited businesses, your own domain name, AI agents, 20% fee on withdrawals |
| Credit costs | 1 credit = $1 of work | Founding run ~9, full product build ~20, daily run 3 to 12 credits (NanoCorp explainer, 9 Sep 2026) |
The pricing page shows only these two. NanoCorp's vs-Polsia comparison refers to a ladder "scaling to 2,000 credits per month" on higher tiers, but the pricing page itself does not display them.
The pricing page does not say what a credit buys. NanoCorp's own September 2026 explainer does: "one credit is one dollar of work at that tier." Run the business every day at the costs it lists and the plan's 30 credits last between three and ten days. NanoCorp's own line: "a month of a business run every day costs tens of dollars, not a salary." The agent stops when the balance is empty.
Month one is tighter still. A founding run plus a product build costs about 29 credits at NanoCorp's own rates, leaving one credit of the plan's 30 for daily runs.
The 20% withdrawal fee is listed as a feature bullet with a checkmark, not a footnote. NanoCorp's own vs-Polsia page frames it as "the only honest way to bridge 'agents make money' with 'founder receives money.'" Polsia's own terms, last updated September 14, 2026, charge 3% on customer payments and 20% on ad spend, with a $500 monthly withdrawal cap. The exact figures are in the FAQ below.
What do the numbers on the homepage say?
NanoCorp publishes live aggregate figures on its homepage. The table mixes homepage figures read on 15 September 2026 with NanoCorp's own July 2026 weekly update. The source column says which is which.
| Signal | Number | Source |
|---|---|---|
| Earned by all businesses, last 30 days | $1,530 | nanocorp.so homepage, 15 Sep 2026 |
| Businesses earning (window not stated) | 243 | nanocorp.so homepage, 15 Sep 2026 |
| Paying subscribers | 890 | nanocorp.so/changelogs, week of 20 Jul 2026 |
| Per earning company, same window | ~$27 over 3 weeks | Computed: $1,975 / 73 companies, same changelog edition |
| Founder subscription | $30/month + 20% withdrawal | nanocorp.so/pricing, 15 Sep 2026 |
| Ever earned, share of created | <1% (206 / 30,272) | nanocorp.so/changelogs, same July 2026 edition |
The one same-window pair NanoCorp publishes sits in its July weekly update: $1,975 earned across 73 companies in three weeks, about $27 per earning company. That is roughly the price of the plan, before the withdrawal fee. The homepage's "243 businesses earning" counter carries no window, so I do not divide by it.
The top earner on the leaderboard has made $2,570 across 748 sales. That works out to $3.44 per sale. The all-time leader on NanoCorp sells a few dollars at a time, not a subscription. NanoCorp's own weekly update, styled as a newspaper it calls DailyCorp (week of July 20, 2026), profiled CVBoost, the busiest storefront, a résumé rewrite selling for under two dollars a time. These are real businesses making real money. The amounts are small.
The drop-off is steeper than the earnings suggest. The same July update prints NanoCorp's own totals: 30,272 companies created, 206 that have ever earned anything. That is under 1%, on one page, in one week.
NanoCorp's own contest produced the tightest signal. One hundred ninety-five companies entered the July 2026 Revenue Race. Five earned anything. Total take: $558 in 84 hours.

Compare this to Polsia, the closest competitor. Polsia's founder said on a May 2026 Mixergy interview that 10% of companies on his platform had made at least a dollar. NanoCorp's own weekly update puts a harsher ratio on the record: under 1%. The difference is the delivery: Polsia's founder said it once on a podcast. NanoCorp prints it in its own weekly update.
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Can you make money with NanoCorp?
Some businesses on NanoCorp do earn real revenue, but the aggregate math works against the typical user. Most independent reviews praise the execution speed. Almost none mention the economics.
Bouchez's March 2026 review noted one important limitation: "No auto mode. You have to manually trigger or approve each step." The homepage now says "Runs 24/7" and "No babysitting," and its July 2026 update describes a Mac-app business whose founder's "involvement since shipping has been zero." Something changed between March and July, but no update announces "auto mode" by name.
A small perk Bouchez noted: verify your identity via an X post to unlock 5 bonus credits.
The r/aisolobusinesses thread on NanoCorp and Polsia is the most honest take I found. The original poster: "tools like polsia & nanocorp claim to run companies autonomously. From what I've seen they're mostly slop (Polsia recommended I open a drycleaning business in NYC whilst i live in France) but the ARR growth is very impressive & a few companies seem to have reached a few thousand in revenue."
One commenter: "the numbers are legit even if most of their users are not doing 'serious business' on the platform. It's mostly hobbyist testing the tool out." Another: "The one thing that hasn't yet been automated, however, is judgment."
AgentAya gave NanoCorp 4.0/5 (July 2026), with the caveat that "the agents make decisions independently, such as creating a paid product and setting its price, while the owner remains legally and commercially responsible for what the company does."
One source to flag: the "NanoCorp Guide" at nanodocs.nanocorp.app publishes tutorials and a "NanoCorp Review 2025." It lives on nanocorp.app, the domain NanoCorp gives every shop it builds, so it is a business built on NanoCorp writing about NanoCorp. Weigh it accordingly.
NanoCorp has no Trustpilot profile as of 15 September 2026. Polsia, by contrast, holds 2.9/5 from 184 reviews (read 15 September 2026).

Does NanoCorp check the idea before building?
No. The sample run NanoCorp shows on its homepage makes the gap visible. The goal it gives the agent: "Get us our first 10 paying customers." The agent's plan: "Pricing page first, then a $15/day Meta budget, then outreach." Then it acts: it writes the pricing page, switches on Facebook & Instagram ads, and lines up 40 cold emails to strangers.
The agent spends the founder's ad money and emails strangers as step one. Nothing in the loop asks whether anyone wants what it is selling. The published numbers are what that looks like at scale: 30,272 companies created, 206 that ever earned, and an earning company clearing about $27 over three weeks.
CB Insights' analysis of 385 startup failures since 2023 found 43% cited poor product-market fit, second only to running out of capital. I wrote a longer piece on why startups fail on product-market fit and how to catch it early. The pattern is the same across every autonomous builder I have reviewed: Polsia, Lovable, Base44. The agents build whatever you describe. None asks whether the thing is worth building.
NanoCorp's own September 2026 explainer puts the burden on the founder: "A business with 'an idea' and no checkout earns nothing, however smart the agent is." And: "An AI cannot want your business to exist." Neither line mentions demand. That check is left to you.

The 60-second pre-NanoCorp check
The validation step NanoCorp skips is the same step every good startup runs before any build tool gets involved. I built Preuve AI for that step. It scans 60+ live data sources in 60 seconds, costs nothing for the basic scan, and returns a scored verdict on market size and competitors alongside real demand signals.
A green score gives you evidence before committing to a $30/month subscription plus a 20% take on whatever the agents earn. A red score tells you the same thing the agents would have told you three months and several subscription payments later, except now you know for free.
If fewer than 1% of companies ever created on the platform have earned anything, and an earning company makes about the price of the plan, then the 60 seconds you spend on a demand check before subscribing is the highest-ROI minute in the process.
If you want to compare the full field first, I ranked every AI app builder in my best AI app builders guide, and I keep a head-to-head of every validation tool I track. Both are worth a read before you pick a builder.
My verdict
2 out of 5. NanoCorp is not a scam. The team is real. The product ships real sites with real payments. Publishing aggregate revenue on the homepage is a genuinely uncommon move in this category.
What holds it back is what the transparent numbers say when you sit down with a calculator. Fewer than 1% of created companies have ever earned anything. The ones that earn make about the plan price before fees, and the top earner's per-sale average is $3.44. NanoCorp's own Revenue Race produced five earners out of nearly two hundred entrants.
The validation gap is the same one I keep finding in every autonomous builder I review. NanoCorp's agent goes from one sentence to live Facebook & Instagram ads and 40 cold emails. Nothing checks demand. The homepage numbers are what that looks like at scale, and at least NanoCorp lets you see it happening.
If your idea already has validated demand, NanoCorp can build fast and the transparency lets you watch your metrics alongside everyone else's. If the idea is not yet validated, a free 60-second demand check costs nothing and takes less time than the founding interview.
If anything above is wrong or has changed, email me at reviews@preuve.ai and I will re-check and update.
Sources
Sources reviewed for this analysis: nanocorp.so homepage (marquee and leaderboard figures, read 15 September 2026); nanocorp.so/pricing (read 15 September 2026); NanoCorp vs Polsia blog post (May 19, 2026, updated); NanoCorp changelogs (DailyCorp) (Vol. I No. 2, week of July 20, 2026); NanoCorp "Can AI Run a Business for Me?" explainer (September 9, 2026); Y Combinator company page (read 15 September 2026); Alexis Bouchez NanoCorp review (March 30, 2026); swanbase.co review (June 26, 2026, affiliate, promo code SWANNC20); r/aisolobusinesses thread (June 2026); AgentAya NanoCorp review (4.0/5, July 10, 2026); NanoCorp Guide (hosted on nanocorp.app, a shop built on the platform); Polsia founder Mixergy interview (May 27, 2026, for comparison); Polsia Terms of Service (last updated September 14, 2026, for comparison); CB Insights top reasons for startup failure (385 failures since 2023, read 15 September 2026). Every NanoCorp figure above is linked to the NanoCorp page it was read from.
FAQ
Is NanoCorp legit?
Yes. NanoCorp (nanocorp.so) is a product of Phospho Inc., a US company (registered in Delaware) backed by Y Combinator with angels from the teams at Vercel, OpenAI, Mistral, and Google DeepMind. Active founder Pierre-Louis Biojout holds an applied maths and computer science degree from Ecole Polytechnique. The product ships real websites with real card payments. Whether the economics work for the typical user is a separate question, and the platform's own published numbers suggest they do not: its July 2026 weekly update counts 206 companies that have ever earned out of 30,272 created, and every business on the platform together earned $1,530 in the 30 days to 15 September 2026, against a $30/month subscription.
How does NanoCorp compare to Polsia?
Both are autonomous AI company builders, and neither checks whether anyone wants the product before building it. NanoCorp publishes aggregate revenue on its homepage and charges a flat $30/month plus a 20% withdrawal fee. Polsia has no public pricing page; testers report $20 to $1,000/month, and its Terms of Service (last updated September 14, 2026) set a 3% fee on customer payments plus 20% on managed ad spend, with a $50 minimum withdrawal and a $500 monthly cap; the June 2026 version charged 20% on revenue. Polsia's Trustpilot holds 2.9/5 from 184 reviews (read 15 September 2026), while NanoCorp has no Trustpilot profile. The key difference is transparency: NanoCorp's own July 2026 weekly update shows fewer than 1% of companies ever created have earned anything. Polsia's founder said 10% of companies made at least a dollar. Both share the same structural gap. For a detailed comparison, read the Polsia review at preuve.ai/blog/polsia-review.
How much does NanoCorp cost?
NanoCorp's pricing page (read 15 September 2026) shows two tiers: a 3-day free trial with 15 welcome credits, and a Founder plan at $30 per month with 30 credits that roll over. NanoCorp's own comparison page refers to higher tiers scaling up to 2,000 credits per month, but only the Trial and Founder are displayed on the pricing page. A 20% fee applies to all revenue withdrawals. One credit is one dollar of agent work at the Founder tier, per NanoCorp's own September 2026 explainer: a founding run is about 9 credits, a full product build about 20, a daily run 3 to 12, so the 30 monthly credits cover three to ten daily runs before a top-up.
What is the 20% NanoCorp withdrawal fee?
NanoCorp charges a 20% fee on all revenue withdrawals. The pricing page lists it as a feature bullet on the Founder plan. NanoCorp's own vs-Polsia blog post frames it as "the only honest way to bridge 'agents make money' with 'founder receives money.'" On the roughly $27 an earning company made over three weeks in July 2026 (NanoCorp's own pair: $1,975 across 73 companies), the founder keeps about $22 after the fee. For context, Polsia's Terms of Service (last updated September 14, 2026) set a 3% fee on customer payments plus 20% on managed ad spend, with a $50 minimum withdrawal and a $500 monthly cap.
Is nanocorp.so the same as nanocorp.ai?
No. nanocorp.so is the autonomous AI company builder from Phospho Inc. (US company, French team, Y Combinator). nanocorp.ai is NANO Corp, a French network-security company founded in 2019. They are completely unrelated. This review covers nanocorp.so.
Can you make money with NanoCorp?
Some businesses do. The homepage leaderboard (15 September 2026) shows the top earner at $2,570 across 748 sales. But the aggregate numbers tell the broader story: every business on the platform together earned $1,530 in the 30 days to 15 September 2026, and NanoCorp's July 2026 weekly update counted 206 companies that have ever earned out of 30,272 created. NanoCorp's own contest, the July 2026 Revenue Race, produced a sharper signal: 195 companies entered, five earned anything, total take $558. As one Reddit commenter on r/aisolobusinesses put it: "the numbers are legit even if most of their users are not doing serious business on the platform."
What are good NanoCorp alternatives?
In the autonomous company builder category: Polsia (similar autonomy model, higher review volume but 2.9/5 on Trustpilot from 184 reviews as of September 2026), Cofounder.co (approval gates before agent actions), and HeyBoss (AI website builder with lighter automation). For AI app building without the autonomous business wrapper: Lovable, Base44, and Bolt.new. For the validation step all of them skip: Preuve AI scans 60+ live data sources in 60 seconds to check demand before any build tool gets involved.
Vincent
5 years in B2B growth, building Preuve AI in public. 82% of ideas it scores aren't ready, the point is finding out in 10 minutes, not 3 months.
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