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Intelligent marketing automation powered by customer data

1001+ employees
  • B2B
  • Marketing
  • Content
  • eCommerce
Financial District, Boston, MA

Company mission

Klaviyo is a unified customer platform that gives online brands direct ownership of their consumer data and interactions, empowering them to turn transactions with customers into long-term relationships—at scale.

Top investors

Some candidates hear
back within 2 weeks

46% female employees

4% employee growth in 12 months

Otta's take

Theo Margolius headshot

Theo Margolius

COO of Otta

Klaviyo is a marketing firm helping growth-focused eCommerce brands drive more sales with super-targeted, highly relevant email, Facebook and Instagram marketing campaigns. From personalised newsletters to automated emails when customers abandon their shopping carts, the marketing automation platform makes it easy for businesses to capture, store, analyze, and predictively use their own data to drive measurable, high-value outcomes.

Klaviyo's CEO, Bialecki, believes that the main problem with e-mail marketing today is that there is a divide between two kinds of tools: analytics tools that help you understand what people are doing on a website, such as what products they are considering, and messaging tools that send them a marketing e-mail. Operating primarily within the retail and eCommerce industry, Klaviyo aims to solve this by offering a tool that brings together analytics and messaging. This allows companies to bring all of their first-party data into a single platform to get a deep understanding of their customers and then activate that data to deliver highly-targeted, personalised communications through email and SMS. In the process, Klaviyo's customers get a deep understanding of their consumers.

Klaviyo is a fast-growing company mainly due to its business model - the firm offers a concrete ROI for Klaviyo’s clients if the software persuades customers to make purchases by treating different types of customers differently. An IPO in 2023 has led to Klaviyo's release of Klaviyo AI, which empowers businesses to unlock revenue-driving opportunities and deliver exceptional customer experiences across channels. Still in its early days of public listing, it will be interesting to see how Klaviyo fares in the years to come.


  • Free books policy - if you’re better off for having read it (or listened to it—audiobooks are covered too!) we’ll pay for it.
  • Generous and flexible PTO policy
  • A very generous education allowance every year for you to spend on learning and development.
  • All full time employees receive equity
  • Commuting allowance for when you do travel to the office,
  • Private health care cover

Company values

  • We always put our customers first.
  • We are owners.
  • We strive to make the world more equitable.
  • We are ambitious.
  • We are always learning.
  • We collaborate radically.
  • We are remarkable.

Funding (last 2 of 6 rounds)

Aug 2022



May 2021




Total funding

This company has top investors


Previously CTO at RockTech, Senior Engineer at Performable, Lead Engineer at Applied Predictive Technologies and an SDET Intern at Microsoft

Ed Hallen

(Chief Product Officer)

Currently an Advisor at Team Engine. Previously worked in Enterprise Business Development at Google, Summer Associate at Accel-KKR and Principal at Applied Predictive Technologies.

Diversity & Inclusion at Klaviyo

Katelyn Nnake headshot

Katelyn Nnake (Director of Diversity, Equity & Inclusion)

  • At Klaviyo one of our key values is "we strive to make the world more equitable"
  • In 2022 over 75% of Klaviyos participated in a Klaviyo Resource Group



Opportunities to learn (3)

Supportive management (3)

Career progression (2)

Open and honest communication (2)

Focus on employee wellbeing (2)

Growing fast (2)

Clear values (2)

Challenging work (1)

Manageable workload (1)

Nice people (1)

Jobs (143)

All locations

Software Engineering

Sales & Account Management

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