Valimail
AcquiredValimail is a cybersecurity company in Boulder, United States, founded in 2015. It has raised $83.5M across 4 rounds, most recently a $45.0M Series C in June 2019.
Authenticating the world's communications
- Headquarters
- Boulder, Colorado
- Employees
- 51–200
- Founded
- 2015
- Business Model
- B2B
- Website
- valimail.com
- Total Funding
- $83.5M
- Last Round
- $45.0M Series CJun 2019
- Rounds
- 4
- Acquired by
- DigiCertSep 2025
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 4 funding rounds and 4 investors for this company. The full record is or through the API.
About
Valimail is a Zero Trust email authentication company that pioneered hosted DMARC in 2015 and introduced DMARC-as-a-Service in 2021. Its cloud-native platform automates the enforcement of DMARC, DKIM, and SPF protocols to protect organizations from email impersonation, phishing, and brand spoofing. Valimail's suite covers both inbound and outbound email protection and supports BIMI (Brand Indicators for Message Identification) to enable verified brand logos in email inboxes. The company serves over 100,000 customers globally and was acquired by DigiCert in September 2025.
Summary
It lists 51–200 employees. It has raised $83.5M in total across 4 rounds, most recently a $45.0M Series C round in Jun 2019. Investors include Bloomberg Beta, Flybridge Capital and Shasta Ventures.
Tech & App Stack
6 technologies & apps tracked
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Funding & Exit History
Sep 2025
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Funding: Seed through Series C. Amounts, valuations, and investors where available.
Investors
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