# MediaMath funding: rounds and investors > MediaMath has raised $605M across 9 rounds since 2008. Investors include QED Investors, Safeguard Scientifics and European Founders Fund. Source: https://millionrounds.com/company/mediamath (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *MediaMath* 9 rounds we have observed, with the 9 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Advertising & Adtech Martech Valuation: $1.0B, Apr 2022 Funding summary Updated 26 Oct 2026 **$605M** raised across 9 rounds since 2008, from 9 sources **$10M** Series A **$2.5M** Debt **$377K** Venture **$14M** Series B **$74M** Series C **$105M** Debt **$175M** Round **$225M** Round - **Latest round:** Round, $225M Jul 2018 - **Step-up i:** 1.3× - **Investors:** 9 (1 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2008 2010 2012 2014 2016 2018 **?** Series A **$10M** Series A **$2.5M** Debt **$14M** Series B **$74M** Series C **$105M** Debt **$175M** Round **$225M** Round - **First round:** Series A - **Biggest round:** $225M - **Usual gap between rounds:** 17 months ## The rounds - **Jul 2018** Round **$225M** *1 new* [Searchlight Capital Partners](https://millionrounds.com/fund/searchlight-capital-partners) Reported by FinSMEs SEC filing: $126M sold, first sale Jun 2018 - **Jun 2017** Round **$175M** *1 new* Goldman Sachs/ Santander Bank Lead Reported by TechCrunch - **Jun 2014** Debt **$105M** No investor was named in the report. From a historical funding record SEC filing: $74M sold, first sale May 2014 - **May 2014** Series C **$74M** *3 new* *1 returning* [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [Catalyst Investors](https://millionrounds.com/fund/catalyst-investors) [Spring Lake Equity Partners](https://millionrounds.com/fund/spring-lake-equity-partners) [Observatory Capital](https://millionrounds.com/fund/observatory-capital) From a historical funding record SEC filing: $74M sold, first sale May 2014 - **Mar 2011** Series B **$14M** *2 returning* [QED Investors](https://millionrounds.com/fund/qed-investors) [European Founders Fund](https://millionrounds.com/fund/european-founders-fund) Reported by techcrunch.com SEC filing: $9.0M sold, first sale Feb 2011 - **Apr 2010** Venture **$377K** No investor was named in the report. Reported by sec.gov SEC filing: $377K sold, first sale Apr 2010 - **Aug 2009** Series A **$10M** *2 new* *1 returning* [QED Investors](https://millionrounds.com/fund/qed-investors) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [European Founders Fund](https://millionrounds.com/fund/european-founders-fund) Reported by freshnews.com SEC filing: $6.6M sold, first sale Jul 2009 - **Aug 2009** Debt **$2.5M** *1 new* *3 returning* [SVB Capital](https://millionrounds.com/fund/svb-capital) [QED Investors](https://millionrounds.com/fund/qed-investors) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [European Founders Fund](https://millionrounds.com/fund/european-founders-fund) Reported by freshnews.com SEC filing: $6.6M sold, first sale Jul 2009 - **Mar 2008** Series A **Amount undisclosed** *1 new* [QED Investors](https://millionrounds.com/fund/qed-investors) From a historical funding record ## Founders and team From the SEC filings it signed: 5 on the team. - **Ari Buchalter** Executive Officer i - **Brian Miller** Executive Officer i - **Jeannie Mun** Executive Officer i - **Jeffrey Davis** Executive Officer i - **Joseph Zawadzki** Executive Officer, Director, Promoter i On the board, as filed i *Dan MacKeigan* *Erik Rasmussen* *Jeffrey Rayport* *Michael Barrett* *Nigel Morris* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2009 **Debt** 2009 **Venture** 2010 **Series B** 2011 **Series C** 2014 **Debt** 2014 **Round** 2017 **Round** 2018 [QED Investors](https://millionrounds.com/fund/qed-investors) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [European Founders Fund](https://millionrounds.com/fund/european-founders-fund) Goldman Sachs/ Santander Bank L [SVB Capital](https://millionrounds.com/fund/svb-capital) [Catalyst Investors](https://millionrounds.com/fund/catalyst-investors) [Spring Lake Equity Partners](https://millionrounds.com/fund/spring-lake-equity-partners) [Searchlight Capital Partners](https://millionrounds.com/fund/searchlight-capital-partners) [Observatory Capital](https://millionrounds.com/fund/observatory-capital) ## Everyone who backed them [QED Investors](https://millionrounds.com/fund/qed-investors) VC firm **4** rounds [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) Private equity **3** rounds [European Founders Fund](https://millionrounds.com/fund/european-founders-fund) Investment firm **3** rounds Goldman Sachs/ Santander Bank no record of our own yet **1** round, led 1 [SVB Capital](https://millionrounds.com/fund/svb-capital) VC firm **1** round [Catalyst Investors](https://millionrounds.com/fund/catalyst-investors) Private equity **1** round [Spring Lake Equity Partners](https://millionrounds.com/fund/spring-lake-equity-partners) Private equity **1** round [Searchlight Capital Partners](https://millionrounds.com/fund/searchlight-capital-partners) Private equity **1** round [Observatory Capital](https://millionrounds.com/fund/observatory-capital) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=mediamath). ## Also claim to have backed them These 5 firms list MediaMath as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Hyde Park Angels](https://millionrounds.com/fund/hyde-park-angels) Angel network Per its own site [Blue Collective](https://millionrounds.com/fund/blue-collective) VC firm Per its own site [FireStarter Fund](https://millionrounds.com/fund/firestarter-fund) VC firm Per its own site [Progress Ventures](https://millionrounds.com/fund/progress-ventures) Corporate VC Per its own site [HPA](https://millionrounds.com/fund/hpa) VC firm Per its own site ## Quick answers about MediaMath ### Who invested in MediaMath? MediaMath's investors include QED Investors, Safeguard Scientifics, European Founders Fund, Goldman Sachs/ Santander Bank and SVB Capital, and 4 more on record. ### How much has MediaMath raised? MediaMath has raised $605M across 9 rounds since 2008. One round did not disclose an amount, so the total is a floor. ### When did MediaMath last raise? MediaMath's most recent round was an Undisclosed round of $225M in Jul 2018. ### What was MediaMath's biggest round? Its most recent round, $225M in Jul 2018, is also its largest on record. ### Who backed MediaMath first? MediaMath's first round on record, in Mar 2008, was backed by QED Investors. ### What stage is MediaMath at? MediaMath's latest named round is an Undisclosed round, in Jul 2018. ### Where is MediaMath based? MediaMath is based in the United States. ### Who led MediaMath's rounds? Goldman Sachs/ Santander Bank led the Undisclosed round in 2017. ## Companies like MediaMath In the same sector, and raised in the last eighteen months. 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