COMPANY PROFILE · UPDATED 01 AUG 2026

Klaviyo

Klaviyo, Inc. provides software solutions. The Company offers marketing automation and email platform which enables users to access, store, analyze, and use transactional and behavioral data to power highly-targeted email and advertising…

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Founded: 2012
Headcount: 1,258
Open roles: 142
Last raised: Post Ipo Secondary · Sign in to view

TECH STACK

How Klaviyo builds

Extracted from Klaviyo’s job postings we’ve tracked

Databases

MySQL×17 Redis×16 SQL×9 Amazon Aurora×8 Amazon RDS×8

Programming Languages

Python×29 TypeScript×11 Go×8 JavaScript×7

CRM & Sales Tools

Salesforce×39 LinkedIn Sales Navigator×10

DevOps & Infrastructure

Terraform×22 Docker/Kubernetes×20

Data Engineering & Warehousing

Apache Airflow×11 Apache Kafka×11 RabbitMQ×9

Cloud Platforms

Amazon Web Services×28

Frameworks & Libraries

Django×18 FastAPI×9

Other Software & Platforms

Adobe Creative Suite×20

LEADERSHIP

Founders & key people

OPEN ROLES

Hiring at Klaviyo

View all 142 open roles →

FUNDING

Capital raised

Total raised

$1,346,513,652

Investors

AccelAccompliceAstral CapitalBlue Owl CapitalClearbridge InvestmentsCounterpointDavid CancelElias TorresGlynn Capital ManagementKeith BlockLone Pine CapitalSands Capital ManagementShopifySummit PartnersTJ MahonyWhale Rock Capital Management

Funding rounds

Post Ipo Secondary
$195.1MAug 13, 2025
Post Ipo Secondary
$372.9MMay 13, 2025
IPO
UndisclosedJan 1, 2023
Corporate Round
Shopify
$100MAug 1, 2022
Series D
Sands Capital Management, Blue Owl Capital, Whale Rock Capital Management, Keith Block, Counterpoint, Lone Pine Capital, Glynn Capital Management, Summit Partners, Accel, Clearbridge Investments
$320MMay 17, 2021
Series C
Accel, Summit Partners
$200MNov 16, 2020
Series B
Summit Partners
$150MApr 7, 2019
Series A
Astral Capital
$7MAug 17, 2017
Seed
Accomplice, David Cancel, TJ Mahony, Elias Torres
$1.5MAug 25, 2015