Litmus Software, Inc.

We're passionate about helping the world make email better. We serve some of the most creative & supportive customers around. We’ve built a team that does great work and has an awesome time doing it!

Founded 2005
51-200 employees
  • Banking, Corporate Finance, & Investing
  • News, Media, Advertising, & Publishing
  • Headquarters address
    675 Massachusetts Ave, Cambridge, MA 02139, USA

    Who is Litmus?

    Litmus is a software company based in Cambridge, MA, with additional offices in London. Founded in 2005, Litmus has partnered with more than 225 major email service providers and agencies, including MailChimp, IBM Silverpop and BrightWave Marketing, and has over 100,000 users. We offer everything you’d expect from a cutting-edge, financially successful startup—and we’ve been doing it all for over 10 years.

    What does Litmus do?

    Litmus helps more than 100,000 marketers make email better. Our email creation, testing, and analytics platform empowers marketers, designers, and agencies to send emails with confidence. We provide instant email previews and quality assurance tools across all major inbox providers, browsers, and devices, and feature comprehensive analytics to help users quickly and easily build, test, troubleshoot, and optimize every campaign.

    Meet our team

    Tech stack

    Ruby on Rails, MySQL, NGINX, Passenger, ElasticSearch, Redis, AWS


    Compensation and retirement


    Health and wellness

    Health insurance
    Dental insurance
    Vision insurance
    Life insurance
    Disability insurance
    Litmus Software, Inc. - Team retreat in Stowe, VT
    Litmus Software, Inc. - Team photo 2015
    Litmus Software, Inc. - Office view
    Litmus Software, Inc. - Email Design Conference