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Mattermark
AcquiredYC S12San Francisco, US · Founded 2012 · 11 employees · 15 known investors
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Mattermark provides a database and analytics platform for discovering, researching, and tracking private companies and investors, with data on company profiles, key personnel, funding, and growth signals. The platform serves deal professionals including investors, venture capitalists, and business development teams with company intelligence and lead enrichment capabilities.
Also known as Referly, Inc. · Mattermark
Founders & leadership· Y Combinator alumni (S12)
Mattermark was founded in 2012 by Danielle "Elle" Morrill, Al Abut, and Kevin Morrill.
Investors · 15
How we know: open dataset · 500 Global portfolio 2026-08 · Y Combinator's founder network · Not right? Tell us
How we know: Version One Ventures's portfolio page · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: funding news · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Funding
SEC filings, press & company announcements$10.5M disclosed across 1 of 2 rounds · 2014–2016
- Undisclosed amountSeries BMar 2016Source ↗
▶$10.5MraisedDec 2014 · 59 investors · Other TechnologyRule 506(b)
- Danielle MorrillExecutive Officer, Director
- Offering amount
- $11.5M
- Amount sold
- $10.5M
- First sale
- Dec 2014
- Incorporated
- Corporation, Delaware, 2012
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Mattermark operates a business information platform that lets users discover, prospect, and track private companies and investors. Its core asset is a company database that the company describes as covering 4 million companies and 20 million key contacts, with more than 80 fields per company profile spanning geography, industry, revenue, personnel, funding, and employee growth. Alongside static profile data, the platform surfaces "growth signals" such as changes in team size, web traffic, and media mentions, intended to add context for outreach timing.
The product is delivered through several access paths: a web-based data browser with CSV and PDF export, REST and GraphQL APIs, spreadsheet plugins for Google Sheets and Microsoft Excel, a Google Chrome browser extension, an iPhone lookup app, and a Salesforce integration that syncs over 80 fields to leads, opportunities, and other objects and supports triggers and actions. Workflow features include saved searches, custom lists, and news notifications for monitoring specific companies within a stated universe of over 300 million private companies worldwide.
Business model
Mattermark sells access to its company and investor dataset on a subscription basis, promoted via a free 14-day trial requiring no credit card, with delivery through a web application, APIs, spreadsheet plugins, browser and mobile tools, and CRM integration.
Latest developments
Mattermark has re-launched as an independent company, as announced on its website.
▸Full profile — market position, technology, go-to-market
Market position
Mattermark positions itself as a source of trusted, verified private-company intelligence for data-driven deal making, emphasizing dataset breadth (4 million companies, 20 million contacts) and daily human verification.
Technology
The company states it applies machine learning, web crawlers, primary sources, and natural language processing to extract data from millions of news articles and websites daily, with an in-house analyst team verifying data on a daily basis. Data is exposed through REST and GraphQL APIs.
Go-to-market
Self-service acquisition through a no-commitment, no-credit-card 14-day free trial on its website, supported by integrations into tools customers already use, notably Salesforce, Google Sheets, Excel, and Chrome.
Deal professionals: investors seeking new companies and deals, sales and business development teams reducing prospecting time and identifying future customers, and professional services firms researching markets and competitive landscapes for clients.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
3 people who came through Mattermark went on to found or lead other companies.
Related companies · 6
Companies working in the same space as Mattermark.
Timeline · 1
launches, deals, and filingsMattermark announced on its website that it has re-launched as an independent company.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 2
corporate structureIn the news
▸Research sources · 1
primary sources listed
- Mattermarkmattermark.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Mattermark do?
- Mattermark is a company and investor data platform for discovering, enriching, and tracking private companies.
- Who founded Mattermark?
- Mattermark was founded by Danielle "Elle" Morrill, Al Abut, Kevin Morrill in 2012.
- Who are Mattermark's investors?
- Mattermark's investors include 500 Global, OnStartups, Transmedia Capital, Version One Ventures, Y Combinator, Andreessen Horowitz, Anvil Capital, DCVC (Data Collective) and 7 more.
- How much funding has Mattermark raised?
- Mattermark has disclosed $10.5M raised across 1 of its 2 known rounds.
- Where is Mattermark headquartered?
- Mattermark is headquartered in San Francisco, US.