We're on a mission to be the platform businesses use to email and communicate with customers. No more spam, just interesting, relevant content.

Founded 2012
16-50 employees
  • Banking, Corporate Finance, & Investing
  • News, Media, Advertising, & Publishing
  • Headquarters address
    344 Boylston Street, Boston, MA 02116, USA

    We're on a mission to change how businesses talk with their users and customers. The status quo sucks. It can be a lot better for everyone.

    Our Product

    Email is the #1 communication channel between companies and their customers and users. At Klaviyo, we're building the best platform to send email. We believe creating relevant, beautiful, personalized emails should be easy.

    Today, companies spend up to 80% of their time just creating and managing emails. Our mission is to change that and let marketers focus on what they do best, being creative and crafting amazing content their customers will love. From newsletters to targeted campaigns or every day transactional emails, Klaviyo is the intuitive email platform for creating, managing and measuring every email a business sends.

    Our Culture

    Our passion shows in everything we do. Here are a few things you can expect at Klaviyo:

    • You'll be in the middle of a super high growth startup that's bootstrapped, profitable and working on building a lasting company and culture.
    • You'll work on projects that change how tens of millions of people engage with their favorite brands and companies.
    • You'll be challenged and work with other Klaviyos who like to be challenged and have a great time doing it.
    • You'll have fun. We host weekly happy hours at our office on Boylston Street and organize team outings to the Red Sox, go kart racing and have an indoor soccer team.

    Tech stack

    Python, Django, JavaScript, Backbone, LESS, HTML5, C, Go, MySQL, NoSQL (right database for the workload)


    Health and wellness

    Health insurance
    Dental insurance
    Vision insurance
    Life insurance
    Disability insurance
    Klaviyo - We're a tight nit team. And work will cool companies, one of which makes awesome shades.
    Klaviyo - Our office is right on Boylston Street, great for the Boston Marathon and Patriot Super Bowl parades.