OverviewSuggest Edit

Klaviyo is an email platform powered by data built for commerce and web businesses. Its features include SMS text messages, social media posts and ads via Facebook and Instagram, reporting, segmentation, marketing automation, phone push notifications, and more.

HQBoston, MA, US
Employee Ratings4.8
Overall CultureA+

Latest Updates

Employees (est.) (Nov 2021)1,095(+6%)
Job Openings140
Cybersecurity ratingBMore
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Key People/Management at Klaviyo

Andrew Bialecki

Andrew Bialecki

Jenny Dearborn

Jenny Dearborn

Chief People Officer
Allen M Chaves

Allen M Chaves

Chief Technology Officer
Benjamin Cook

Benjamin Cook

Chief Financial Officer
Stephen Wietrecki

Stephen Wietrecki

Chief Revenue Officer
Brian Kerr

Brian Kerr

Vice President of Information Security
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Klaviyo Office Locations

Klaviyo has offices in Boston and London
Boston, MA, US (HQ)
125 Summer St
London, GB
49 Southwark Bridge Rd
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Klaviyo Financials and Metrics

Summary Metrics

Founding Date


Klaviyo total Funding

$678.5 m

Klaviyo latest funding size

$320 m

Time since last funding

7 months ago

Klaviyo investors

Klaviyo's latest funding round in May 2021 was reported to be $320 m. In total, Klaviyo has raised $678.5 m. Klaviyo's latest valuation is reported to be $9.5 b.
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Klaviyo Revenue

Market valuation

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Klaviyo Operating Metrics

Klaviyo's Customers was reported to be 50 k in Nov, 2020.
Dec, 2016Dec, 2018Apr, 2019Nov, 2020May, 2021

Countries Covered



1 k5 k12 k50 k

Paying Customers

70 k
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Klaviyo Cybersecurity Score

Cybersecurity ratingPremium dataset



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Klaviyo Online and Social Media Presence

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Klaviyo Company Culture

  • Overall Culture



  • CEO Rating



  • Compensation



  • Diversity



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Klaviyo News and Updates

Klaviyo Named #15 On The Forbes Cloud 100

BOSTON, Aug. 10, 2021 /PRNewswire/ -- Klaviyo, a leading customer data and marketing automation platform, has been named to the Forbes 2021 Cloud 100, the definitive ranking of the top 100 private cloud companies in the world, published by Forbes in partnership with Bessemer Venture...

Klaviyo Raises $320 Million in Series D Funding Following Surge in Demand for Data and Marketing Automation Platform

BOSTON, May 18, 2021 /PRNewswire/ -- Klaviyo, a leading customer data and marketing automation platform, today announced that it has raised a $320 million Series D round of funding. The round was led by new investor Sands Capital. Other new investors include Counterpoint Global (Morgan...

Marketing automation platform Klaviyo scores $200M Series C on $4.15B valuation

Boston-based marketing automation firm Klaviyo wants to change the way marketers interact with data, giving them direct access to their data and their customers. It believes that makes it easier to customize the messages and produce better results. Investors apparently agree, awarding the company a …

Klaviyo raises $150M Series B after building company the old fashioned way

Klaviyo, a Boston-based email marketing firm founded in 2012, went about building its email marketing business the old fashioned way. First it built a profitable company, then it went looking for funding to accelerate the growth. Today, it announced a massive $150 million Series B with the entire su…

Klaviyo Blogs

Behind the Pixels

BTP: Showcase with Stephen AsonyeBehind the Pixels is a conversational blog series that aims to give a glimpse into the work & life of being a designer at KlaviyoA: Let’s start by having you introduce yourself — How long have you been a product designer and how long have you been at Klaviyo?S: …

Improving Forms Performance

What is “Forms Performance” & why does it matter?When Klaviyo customers decide to use our signup forms, they expect forms that load quickly and don’t slow down their site, ideally only improving their users’ experience. Improving forms performance means minimizing the amount of JavaScript loaded…

The Journey to SMS Conversations

Klaviyo’s first Product Event went live to the world on March 30, 2021. It was an exciting time for the entire company, but it marked something special for the SMS engineering team because it was the first time Klaviyo’s full SMS product offering would be announced. Part of the feature set being unv…

Managing Complexity with Architecture Patterns in Python

Does your source code feel like a big ball of mud? Are dependencies interwoven throughout your codebase to the point where change feels dangerous or impossible?As the business grows and the domain model (the business problem you’re solving in the application) becomes more complex, how do we untangle…

Book: The Passionate Programmer

Do you want a strategy for planning and creating a radically successful life in software development? That’s the catch phrase from a book I just read by Chad Fowler titled “The Passionate Programmer”. There’s great little side stories in it by people including co-founder of Github and more. Each cha…

How to abstract away implementation details and simplify your life: A Story

This past spring, Klaviyo started up a subscription model for SMS messaging, to provide flexibility for our SMS customers and to bring our SMS billing offerings into parity with our Email ones. As part of this, several teams across the organization pitched in to update billing features and SMS messa…
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Klaviyo Frequently Asked Questions

  • When was Klaviyo founded?

    Klaviyo was founded in 2012.

  • Who are Klaviyo key executives?

    Klaviyo's key executives are Andrew Bialecki, Jenny Dearborn and Allen M Chaves.

  • How many employees does Klaviyo have?

    Klaviyo has 1,095 employees.

  • Who are Klaviyo competitors?

    Competitors of Klaviyo include MailChimp, Actito and Iterable.

  • Where is Klaviyo headquarters?

    Klaviyo headquarters is located at 125 Summer St, Boston.

  • Where are Klaviyo offices?

    Klaviyo has offices in Boston and London.

  • How many offices does Klaviyo have?

    Klaviyo has 2 offices.