# Capsa AI

Aiolum story: https://aiolum.com/story/capsa-ai/ · added 2026-11-07 · updated 2026-11-07

**In short.** Capsa AI (AI platform for private equity due diligence and deal research, United Kingdom): Series A closed with a team of 14, June 2026. Evidence grade E: no revenue figure was checked. Team: 2 co-founders at the end of 2023 (Antler called them "an exceptional duo"); 14 people across London and New York in June 2026, as Cornerstone VC wrote at the Series A. Launched March 2024; still running, revenue growing.

AI platform for private equity due diligence and deal research · United Kingdom · AI-native · started small, grew after funding · still running, revenue growing · group: Finance, risk and compliance

- Outcome: Series A closed with a team of 14, June 2026 (evidence grade of the headline number: E; no revenue figure)
- Launch: March 2024; months from launch to the outcome: 27
- Team: 2 co-founders at the end of 2023 (Antler called them "an exceptional duo"); 14 people across London and New York in June 2026, as Cornerstone VC wrote at the Series A
- Outside funding: Funded: Antler as day-zero investor; a £1.7M seed round in September 2024 led by Outward VC and a US$18M Series A in June 2026 co-led by TX Ventures and Pivot Investment Partners, as the company stated; US$20M in total, as Cornerstone VC wrote
- Main factor: Domain expertise
- Meters, 1 to 4: evidence strength 1, copyable pattern 1, capital needed 2
- Tags: AI-native, Small team, Funded, Running, B2B, Private capital

Links:

- Visit capsa.ai: https://capsa.ai/

**The product.** Software for private equity firms that reads a fund's own documents, emails and CRM records, plus licensed market data, and uses AI models to write company profiles, extract financial figures, flag risks and draft investment committee memos. Every answer links to the document it came from.

**Why it worked.** One co-founder had worked on more than 50 due diligence processes in private equity and investment banking, the other had built machine learning products. They launched to real funds four weeks into an accelerator, sold only through their own sales work, and kept customers: the company was cash flow positive after about 1.5 years, it said, before it raised a Series A.

Evidence grades: A = disclosed by a public company, a filing or a payment processor, or verified by one; B = two or more independent reports agree, or a journalist confirmed it; C = a founder claim that no one else verified; D = reported, not verified: one founder claim or a third-party estimate with no second source; E = no revenue figure found, so the headline is a non-money fact and the other facts carry their own grades; calc = computed on this page from graded facts.

## Summary

Capsa AI sells software to private equity firms, funds that buy companies with money from large investors and sell them years later. Before a purchase, a deal team does due diligence: it reads the target company's accounts, contracts and market data to find risks. Capsa connects to a fund's SharePoint folders, Outlook mail and CRM (customer relationship management software, here the fund's list of companies and contacts), and uses AI models to answer questions, fill tables with figures and draft memos, each linked to its source.

Danyal Özdüzenciler, a former private equity investor, and Callum Downie, a machine learning engineer, founded it at the end of 2023 in the UK residency of Antler, an early-stage investor. Antler wrote in August 2024 that the product launched four weeks into the residency and that, five months later, the company was earning revenue from funds that, by Antler's count, manage over US$30 billion; that figure is the customers' assets, not Capsa's revenue. In June 2026 the company announced a US$18 million Series A, and Cornerstone VC, an investor, wrote that the team had grown to 14 people in London and New York.

No revenue amount is public. The company and its investors give only ratios, such as a net dollar retention above 122% (what existing customers pay this year compared with last year, including upgrades and losses), so the evidence grade is E.

## Pricing

Capsa AI publishes no prices (read 7 November 2026)

| Plan | Per month, billed yearly (US$) | Per month, billed monthly (US$) | Limit |
|---|---|---|---|
| Enterprise |  | not published | contract after a demo request |
| Microsoft Marketplace |  | not published | bought in the Azure portal |

The site offers only a demo request. Since 27 October 2026 firms can also buy Capsa through Microsoft Marketplace, and the company says the cost can count toward a Microsoft Azure Consumption Commitment. No source states a price.

## How much revenue does Capsa AI make? The numbers, graded

A two-founder start in 2023, paying private equity customers in 2024, and a 14-person team at the Series A in June 2026; no revenue amount in any source

| Fact | Value | Grade | Note | Sources |
|---|---|---|---|---|
| Status, June 2026 | US$18M Series A announced; a team of 14 people across London and New York | C | The company's post of 9 June 2026 announces the round, co-led by TX Ventures and Pivot Investment Partners. Cornerstone VC's post of 10 June 2026 gives the team size and US$20M raised in total. | [1, 5] |
| Founded | end of 2023, by two co-founders | C | Cornerstone VC: "founded by Danyal Özdüzenciler and Callum Downie at the end of 2023". The company's seed post of 5 September 2024 says "Eight months after founding", which points to January 2024. Antler calls itself the "day zero investor". | [1, 2, 3] |
| Product launch | about March 2024 | calc | Calculated: Antler wrote on 9 August 2024 that the product launched four weeks after the founders entered its UK residency and that "Five months later" the company was revenue-generating; 9 August 2024 minus five months is March 2024. | [2] |
| Customers' assets, August 2024 | private equity funds managing over US$30 billion, in the US, UK and Germany | C | Antler's post and the company's seed post. This is the money the customers manage, not money paid to Capsa. At launch the figure was over US$9 billion, Antler wrote. | [2, 3] |
| Growth in the second quarter of 2025 | 7 times ARR and 4.3 times active users in 90 days; "Cash flow positive after only 1.5 years" | C | The company's update of 7 August 2025. ARR (annual recurring revenue) is given only as a multiple, with no amount. Monthly active users were "up >30% MoM", the post says. | [4] |
| Retention and use, June 2026 | net dollar retention above 122%; 100% renewal rate across eligible renewals; weekly active use 70%, daily 40% | C | Cornerstone VC's Series A post. It also says more than 50% of booked ARR is on multi-year contracts and that Capsa "has never lost a paid proof-of-concept evaluation to a competitor". | [1] |
| How customers arrived | founder-led sales, no paid acquisition | C | Cornerstone VC: "Growth has been entirely founder-led with zero paid acquisition." | [1] |
| Named customers | BBA Capital Partners (since September 2024), Bregal and Nord Holding (2025) | C | The company's case study of 13 February 2025 and its update of 7 August 2025. The home page carries quotes signed by named people at Capital D, Quadriga Capital and Hannover Finanz. | [11, 4, 6] |
| Prices | not published | C | Demo request only. Listed in Microsoft Marketplace on 27 October 2026. | [6, 7] |
| AI models and data | several model providers; Anthropic's Sonnet 4.5 "core to our platform" from October 2025; Perplexity and FactSet data | C | The company's posts of 9 October 2025, 12 February 2025 and 23 October 2025. The product page says a firm's knowledge stays "independent of any one provider". | [8, 9, 10, 6] |
| Time from launch to the June 2026 status | 27 months | calc | Calculated: March 2024 to June 2026. | [1, 2] |

How to read this table: a grade C value is a statement by the company or by one of its investors, not checked by anyone else. A grade X value was computed on this page. No value is grade A or B, and no revenue amount was found.

## When did Capsa AI launch, and how did it grow? Timeline

From an accelerator residency at the end of 2023 to a Series A and a New York office in about two and a half years. Each entry carries its grade.

- **End of 2023** (grade C [1, 2]): Danyal Özdüzenciler and Callum Downie found Capsa AI in Antler's UK residency. Antler invests on day zero.
- **About March 2024** (grade calc [2]): Four weeks into the residency, the product goes live with private equity funds that Antler says manage over US$9 billion.
- **August to September 2024** (grade C [2, 3, 11]): Antler writes that the company is revenue-generating. On 5 September the company announces a £1.7 million seed round led by Outward VC, with Cornerstone VC and Antler. BBA Capital Partners starts using it.
- **Second quarter of 2025** (grade C [4]): The company reports 7 times ARR growth in 90 days, says it is cash flow positive, passes a SOC 2 security audit, signs Bregal and Nord Holding and starts in the US.
- **June 2026** (grade C [5, 1, 12]): The company announces a US$18 million Series A. Cornerstone VC writes that the team is 14 people and that the CEO has moved to New York.
- **27 October 2026** (grade C [7]): Capsa becomes available in Microsoft Marketplace.

## Why did Capsa AI work?

### A founder from the customer's own job

The CEO had worked at AEA Investors, Citi and Deutsche Bank, Antler wrote, and the first features were "co-developed" with funds, the company said. In a market where buyers are few and cautious, knowing the work let them sell to real funds within weeks of starting.

### The fund's own records as the product

Instead of selling general market data, Capsa indexes what a fund already holds: past memos, emails, CRM entries and data rooms. It links a company that appears under a legal name, a trading name and a deal code name, and it cites the source of every answer, which deal teams need before an investment committee.

### Sold, not marketed

Cornerstone VC wrote that all growth was founder-led with no paid acquisition, and that retention was high. Contracts are agreed after a demo; there is no price list and no self-service sign-up.

## How it was built

These details come from the company's own posts and its investors' posts. They are grade C.

- A web platform that connects to Microsoft SharePoint, Outlook and a fund's CRM, keeps tables and figures from documents, and writes Word, Excel and PowerPoint files.
- Several AI model providers behind one interface. In October 2025 the company made Anthropic's Sonnet 4.5 "core to our platform" and wrote that it believes in a "multi-model approach".
- Outside data from partners: real-time web results from Perplexity (February 2025) and financial and deal data from FactSet (October 2025).
- Scheduled agents that run research, prepare outputs and update the CRM, with approval steps.
- SOC 2 Type II audited, isolated client environments, regional hosting and an on-premises option, as the home page says; the company says it does not train on client data.

Sources: [6, 7, 8, 9, 10, 4]

## Who tried this before Capsa AI, and why did they fail?

Two companies in our database of failed startups sold data and analysis to investors and failed. The values below are from that database and are not independently verified.

The failed startups come from our database of dead startups, retold here in our own words; Its entries are AI-assisted summaries of public sources, so they carry no evidence grade.

### Monitor110 (2005 to 2008; funding US$17M; cause: Unit Economics)

- Promise: Early signals for hedge funds and institutional investors, filtered from blogs, news and social media.
- Why it died: Data collection and processing cost more than its revenue paid for, the market was not ready, and Bloomberg already held the customers.
- Record: 

### Mattermark (2012 to 2019; funding US$17.7M; cause: Competition)

- Promise: One database of private-company growth signals for venture investors and sales teams.
- Why it died: It could not differentiate from CB Insights and PitchBook, and the cost of its data work grew faster than its revenue.
- Record: 

## What changed

Both predecessors sold outside data to investors: web signals in one case, private-company facts in the other. Each had to collect and clean that data itself, which cost more than customers paid, and each competed with larger data firms such as Bloomberg, CB Insights and PitchBook.

Capsa starts from data the fund already owns, its own memos, emails and deal files, so it does not pay to collect it, and it buys market data from partners (FactSet, Perplexity) instead of building it. Large language models made it possible to read those unstructured documents at a cost a two-founder team could carry. Its sources do not show whether the larger data firms will add the same features.

## Can one person copy Capsa AI now?

**Verdict: Hard for one person; possible for a founder from the industry.**

The method is to sell AI that works on a customer's own documents in one industry where the founder has done the job. It needs security audits, enterprise contracts and months of sales to a small number of cautious buyers, and Capsa raised outside money before and during that work.

1. Pick an industry where you have done the analyst work yourself, so you know which documents and tables matter.
2. Build the first features together with two or three paying firms, and cite the source of every answer.
3. Pass a security audit such as SOC 2 early, because enterprise buyers ask for it before a trial.
4. Sell through your own calls and demos, and measure renewals and expansion, not sign-ups.

**What is still open.** Other document-heavy investment work, such as infrastructure, real estate or private credit funds, family offices, and the corporate development teams of large companies.

## What could go wrong for Capsa AI?

- **What is not verified.** No revenue figure was found. Looked for: a payment-processor profile, a founder interview with figures, a funding announcement with an amount of revenue. The company gives only multiples (7 times ARR in 90 days in its update of 7 August 2025) and says it was "Cash flow positive after only 1.5 years"; Cornerstone VC, an investor, gives a net dollar retention above 122% in June 2026. The "over $30 billion" in Antler's post is what the customers manage, not Capsa's revenue. The founding date differs a little between sources (end of 2023, or eight months before September 2024). The home page shows a row of customer logos with no text labels, so the names could not be read; the named customers on this page come from the company's own posts. A reader could look for the annual accounts of CAPSA.AI LTD in the UK company register.
- **The team grew after funding.** Antler described two founders in August 2024. By June 2026 the team was 14 people, Cornerstone VC wrote, and the Series A post says the company will "grow our world-class team in London and New York". The careers page says the company is "growing across engineering and go-to-market".
- **Competition.** Acephalt, on this site, sells AI agents for due diligence to venture and private-equity investors, with beta users in November 2025; Capsa is further along, with a Series A and named paying funds. Cornerstone VC wrote that Capsa "has never lost a paid proof-of-concept evaluation to a competitor", a statement nobody outside has checked.
- **Dependence on model providers.** The product runs on models from outside providers. In October 2025 the company made Anthropic's Sonnet 4.5 "core to our platform" and said it follows a "multi-model approach"; its product page says a firm's knowledge stays "independent of any one provider". Market data also comes from partners, Perplexity and FactSet, so a change in their terms would affect the product.

## Sources

1. Cornerstone VC, 10 June 2026: Capsa AI raises $18m Series A — https://www.cornerstonevc.co/2026/06/10/capsa-ai-raises-18m-series-a/ (grade C). Read in full. An investor's post. Source for the founding date, the team of 14, the total raised, retention, usage and founder-led sales.
2. Antler, 9 August 2024: Why we invested in Capsa AI: an AI operating system for private equity professionals — https://www.antler.co/blog/why-we-invested-in-capsa-ai (grade C). Read in full. The day-zero investor's post. Source for the founders' backgrounds, the launch timing, the customers' assets under management and the "exceptional duo".
3. Capsa AI, 5 September 2024: Capsa AI Raises £1.7M Seed Round to Transform Private Equity with AI — https://capsa.ai/resources/capsa-ai-raises-%C2%A31.7m-seed-round-to-transform-private-equity-with-ai (grade C). Read in full. Source for the seed round, its investors and "Eight months after founding".
4. Capsa AI, 7 August 2025: Capsa Update: 7x ARR and 4.3x User Growth in 90 Days — https://capsa.ai/resources/capsa-update (grade C). Read in full. Source for the growth multiples, cash flow statement, SOC 2, US start and the Bregal and Nord Holding wins.
5. Capsa AI, 9 June 2026: Announcing our $18M Series A — https://capsa.ai/resources/announcing-our-18m-series-a (grade C). Read in full. The founders' post. Source for the round, its lead investors and the hiring plan.
6. Capsa AI home page and product page, read 7 November 2026 — https://capsa.ai/ (grade C). Read in full. Source for what the product does, the security claims, the named testimonials, the model statement and the demo-only sales.
7. Capsa AI, 27 October 2026: Capsa Now Available in the Microsoft Marketplace — https://capsa.ai/resources/capsa-now-available-in-the-microsoft-marketplace (grade C). Read in full. Source for the Marketplace listing and the SharePoint and Outlook features.
8. Capsa AI, 9 October 2025: Capsa AI Integrates Anthropic's Latest Sonnet 4.5 Model — https://capsa.ai/resources/capsa-ai-integrates-anthropic-s-latest-sonnet-4.5-model (grade C). Read in full. Source for the model choice and the multi-model statement.
9. Capsa AI, 12 February 2025: Capsa AI Partners with Perplexity AI — https://capsa.ai/resources/capsa-ai-partners-with-perplexity-ai (grade C). Read in full. Source for the web data integration.
10. Capsa AI, 23 October 2025: Capsa AI Partners with FactSet — https://capsa.ai/resources/capsa-ai-partners-with-factset (grade C). Read in full. Source for the financial data partnership.
11. Capsa AI, 13 February 2025: BBA Capital Partners Achieves 10-20% Efficiency Gains with Capsa — https://capsa.ai/resources/bba-capital-partners-achieves-10-20-efficiency-gains-with-capsa-ai (grade C). Read in full. A company case study. Source for a named customer and its start date.
12. Capsa AI, 5 January 2026: Announcing our U.S. Expansion — https://capsa.ai/resources/announcing-our-u.s.-expansion (grade C). Read in full. The CEO's post on moving to New York.
13. Capsa AI careers page, read 7 November 2026 — https://capsa.ai/careers (grade C). Read in full. Source for hiring in engineering and go-to-market.
14. Database of failed startups, local export — /method/#dead (grade C). Local export. AI-written summaries, not independently verified. Source for the failed predecessors.

Contact: aiolum@livyden.com. Run Capsa AI? Send corrections or a verified figure to aiolum@livyden.com (subject: Correction: Capsa AI).