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Litmus

The leading email creation, testing, and analytics platform for marketing teams.
Software 📍 Cambridge, MA Founded 2005
Current Valuation
$200M
as of 2025-Q2
PRIVATE

IPO Outlookprivate

Is Litmus going public?
No. Litmus is private and has not filed to go public. There is no S-1 on file.
What is Litmus' valuation in 2026?
Litmus is valued at $200M as of 2025-Q2, set by its Private Equity ($49M, Oct 2015). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Litmus filed an S-1?
No public S-1 is on file for Litmus.
Who are Litmus' investors?
Litmus' investors include Spectrum Equity, Paul Farnell, Matt Brindley, Validity (Acquirer).
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Litmus provides a suite of email marketing tools that allow teams to build, test, and analyze emails across dozens of email clients and devices. Founded in 2005, it has become a standard for ensuring email rendering consistency and optimizing campaign performance.

Company Profile

CEO
Mark Briggs
Founded
2005
HQ
Cambridge, MA
Employees
100-200
Total Raised
$49M
Est. Revenue
$50M (2022)
Growth
Up 20% year-over-year
Last Round
Private Equity — $49M (Oct 2015) · Lead: Spectrum Equity
IPO Status
none

Fundraising Status

Private Equity · $49M · 10y 10mo ago
noneTotal raised $49M

Latest Funding Round

RoundAmountDateLead InvestorPost-Money
Private Equity$49MOct 2015Spectrum Equity—

Talent Signal

Hiring trend
● First snapshot
trend accrues with monthly sweeps
Open roles
35
via ashby
Product-build share
34%
engineering, research, product, design
Trajectory
steady
balanced build + GTM — 34% builders vs 66% go-to-market/G&A — scaling both sides.
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by month35Aug '26
Open roles by function
Open roles by functionSales & GTM17Engineering11Other5Support1Product1
■ product-building   ■ go-to-market / G&A
Senior Software Engineer - GolangSenior Software Engineer - Industrial, GCCSenior Software Engineer - IndustrialLead DevOps EngineerSenior Product ManagerSenior Yocto Developer GCC
Counted from Litmus's live job board as of 2026-08-17; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.

Founders & Key People

Paul FarnellMatt BrindleyDavid Smalley

Investors

Spectrum Equity · Paul Farnell · Matt Brindley · Validity (Acquirer)

Products

  • Litmus Email Previews
  • Email Builder
  • Email Analytics
  • Litmus Personalize
  • Spam Testing

Competitors

Email on Acid · Sinch Mailgun · Mailchimp · Movable Ink
Email MarketingMarTechSaaSEmail TestingAnalytics
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025-Q2. Refreshed quarterly.