stars 1 stars 2 stars 3

View Sendwithus's top competitors like ActiveCampaign Postmark, Amazon, and Klaviyo.

Amazon
Amazon strives to be Earth's most customer-centric company where people can find and discover virtually anything they want to buy online. By giving customers more of what they want - low prices, vast selection, and convenience - Amazon continues to grow and evolve as a world-class e-commerce platform. Founded by Jeff Bezos, the Amazon.com website started in 1995 as a place to buy books because of the unique customer experience the Web could offer book lovers. Bezos believed that only the Internet could offer customers the convenience of browsing a selection of millions of book titles in a single sitting. During the first 30 days of business, Amazon fulfilled orders for customers in 50 states and 45 countries - all shipped from his Seattle-area garage. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of innovation that is part of the company's DNA. The world's brightest technology minds come to Amazon.com to research and develop technology that improves the lives of shoppers and sellers around the world.
Seattle, Washington, US
Public
$638B Revenue
https://www.amazon.com
787.4K Employees
AMZN Ticker
Klaviyo
Klaviyo (NYSE: KVYO) is the autonomous B2C CRM. Powered by its built-in data platform and AI, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps over 193,000 brands like Mattel, Glossier, Daily Harvest, and Liquid Death deliver 1:1 experiences at scale, improve efficiency, and drive revenue.
Boston, Massachusetts, US
Private
$937.5M Revenue
https://www.klaviyo.com
3K Employees
Sendinblue
Sendinblue is the only all-in-one digital marketing platform that empowers businesses to build customer relationships through end to end digital marketing campaigns, transactional messaging, and marketing automation. Unlike other marketing solutions built for enterprise-level budgets and expertise, Sendinblue tailors its all-in-one suite to suit the marketing needs of growing SMBs in tough markets. 🙌 Sendinblue Fun Facts 🙌 • Founded in 2012 by Armand Thiberge with a mission to make the smartest and most intuitive marketing platform accessible to all businesses. • A Digital Marketing leader in Europe and North America • 500,000 customers across 180 countries worldwide • 200 million emails and text messages delivered every day • Service and platform available in 6 languages • Headquartered in Paris with 7 other offices in Seattle, Toronto, Berlin, Vienna Sofia, Noida and Bengaluru • 700+ talented employees representing over 67 nationalities Are you ready to become a part of our journey? Prepare for Takeoff! 🚀
Paris, FR
Private
$84M Revenue
https://www.sendinblue.com/
697 Employees
Learn More
How It Works
get free account
Get a Free Account
Sign up for a free account. No credit card required. Up to 5 free lookups.
search page
Search the #1 Contact Database
Get contact details of over 700M profiles across 60M companies – all with industry-leading accuracy. Sales and Recruiter users, try out our Email Finder Extension.
get contact page
Use our AI-Powered Email Finder
Find business and personal emails and mobile phone numbers with exclusive coverage across niche job titles, industries, and more for unparalleled targeting. Also available via our Contact Data API.
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
g2crowd
G2Crowd Trusted
chromestore
300K+ Plugin Users