United States · 
Who invested in Mailgun?
Mailgun's investors include Y Combinator, SV Angel, Salesforce Ventures, Paul Buchheit and Webb Investment Network, and 4 more on record.
20102011201220132014201520162017
?Seed$1.1MSeed$50MRound
United States · Funded startup
Who invested in Mailgun
Funding summaryUpdated 26 Oct 2026
$51Mraised across 3 rounds since 2010, from 3 sources
$1.1MSeed$50MRound
- Latest round
- Round, $50MFeb 2017
- Step-upi
- 45.5×
- Investors
- 9
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed Jan 2010
- Biggest round
- $50M Round · Feb 2017
- Usual gap between rounds
- 5.8 years the median of 2
The rounds
- Feb 2017
- May 2011Seed$1.1M6 new1 returning
Reported by techcrunch.com
- Jan 2010
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.
Seed2010Seed2011Round2017
Y Combinator
SV Angel
Salesforce VenturesPaul Buchheit
Webb Investment Network
Yuri MilnerGeoff Ralston
RackspaceTurn/River Capital/ Scaleworks
Y CombinatorSV AngelSalesforce VenturesPaul BuchheitWebb Investment NetworkYuri MilnerGeoff RalstonRackspaceTurn/River Capital/ ScaleworksThe exit
ExitBuyerPriceWhen
From historical deal records. Wrong? Tell us.
Everyone who backed them
Paul BuchheitAngel1round
Geoff RalstonVC firm1round
Turn/River Capital/ Scaleworksno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Mailgun as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Mailgun
How much has Mailgun raised?
Mailgun has raised $51M across 3 rounds since 2010. One round did not disclose an amount, so the total is a floor.
When did Mailgun last raise?
Mailgun's most recent round was an Undisclosed round of $50M in Feb 2017.
What was Mailgun's biggest round?
Its most recent round, $50M in Feb 2017, is also its largest on record.
Who backed Mailgun first?
Mailgun's first round on record, in Jan 2010, was backed by Y Combinator.
What stage is Mailgun at?
Mailgun's latest named round is an Undisclosed round, in Feb 2017.
Where is Mailgun based?
Mailgun is based in the United States.
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