68 Best Email Startups to Watch in 2025

The Definitive Seedtable Ranking of Email Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 68 start-ups with an aggregate funding of $3.5b. The average funding per company in this subset is $51.3m.

Last update to the database: Feb 18, 2025. See changelog.

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Pitney Bowes logo

Pitney Bowes

Pitney Bowes is a Stamford, Connecticut-based company founded in 1920 by Walter Bowes.

3

Funding Rounds

$900.0k

Money raised

Superhuman logo

Superhuman

A company offering an email client designed to be the fastest email experience. The company was founded by Conrad Irwin, Rahul Vohra, and Vivek Sodera in 2015 and is headquartered in San Francisco, California.

5

Funding Rounds

$121.0m

Money raised

Front (company) logo

Front (company)

A software company making a workplace email communication platform for remote and office work.

6

Funding Rounds

$200.0m

Money raised

Suki logo

Suki

Suki is a Redwood City, California-based technology company developing AI-powered administrative tools for the healthcare industry.

4

Funding Rounds

$160.0m

Money raised

Tessian logo

Tessian

Tessian (formerly Checkrecipient) is an artificial intelligence email security platform.

7

Funding Rounds

$184.7m

Money raised

Nylas logo

Nylas

A company offering a communications platform allows developers to quickly build features that connect to every email, calendar, and contacts provider in the world.

5

Funding Rounds

$162.5m

Money raised

Mailjet logo

Mailjet

Mailjet is an email services provider.

6

Funding Rounds

$17.6m

Money raised

Iterable logo

Iterable

Iterable is a company founded in 2013 by Andrew Boni.

7

Funding Rounds

$342.2m

Money raised

Yesware logo

Yesware

Yesware developed a software toolkit for sales teams.

6

Funding Rounds

$49.6m

Money raised

Act-On Software logo

Act-On Software

Act-On Software is a Portland, Oregon-based company founded in 2008 by Raghu Raghavan.

3

Funding Rounds

$26.0m

Money raised

Agari logo

Agari

Agari is a Foster City, California-based cybersecurity company using artificial intelligence for the provision of email threat prevention and protection.

8

Funding Rounds

$113.7m

Money raised

Sailthru logo

Sailthru

Sailthru is a company founded in 2008 by Neil Capel, Ian White and Chris Chapman.

3

Funding Rounds

$28.0m

Money raised

Boomerang (Baydin) logo

Boomerang (Baydin)

Boomerang is an organization that provides electronic mail and supports Microsoft exchange for clients.

1

Funding Rounds

$1.0m

Money raised

ActiveCampaign logo

ActiveCampaign

ActiveCampaign provides a platform with email marketing, marketing automation, and CRM tools for small-to-mid-sized businesses.

3

Funding Rounds

$360.0m

Money raised

June.ai logo

June.ai

A software company offering a communication platform made to replace email.

2

Funding Rounds

$3.0m

Money raised

SharpSpring logo

SharpSpring

SharpSpring offers an email marketing platform that provides marketing automation tools for businesses.

2

Funding Rounds

$13.0m

Money raised

MailGun logo

MailGun

MailGun is a company providing APIs for developers for integrating emails into applications.

3

Funding Rounds

$51.1m

Money raised

Cordial (company) logo

Cordial (company)

Cordial is the cross-channel messaging and data platform for customer-obsessed brands.

6

Funding Rounds

$73.1m

Money raised

Woebot Health logo

Woebot Health

Woebot Labs is a San Francisco-based company offering an AI-powered mental healthcare platform and chatbot.

3

Funding Rounds

$107.5m

Money raised

Scalix logo

Scalix

Scalix provides email, group calendaring and other collaborative software that enables users to reduce cost of ownership.

3

Funding Rounds

$6.0m

Money raised

Egress Software Technologies logo

Egress Software Technologies

Egress is a software company that specializes in compliance and privacy management solutions for unstructured data.

1

Funding Rounds

$40.0m

Money raised

Antavo logo

Antavo

Antavo is a loyalty Management Platform for Fashion and Retail founded in 2012 by Andras Bencsik, Zsuzsa Kecsmar, Attila Kecsmar and Gábor Csarnai.

2

Funding Rounds

$10.1m

Money raised

Zimbra logo

Zimbra

Zimbra is a United Kingdom-based company founded in 2004.

1

Funding Rounds

$14.5m

Money raised

OthersideAI logo

OthersideAI

OthersideAI is a New York-based software development company and the provider of AI-driven software, HyperWrite, which turns summaries and shorthand notes into written emails.

3

Funding Rounds

$5.4m

Money raised

SendinBlue logo

SendinBlue

SendinBlue is a Paris-based customer relationship management software company.

3

Funding Rounds

$232.0m

Money raised

Autopilot (company) logo

Autopilot (company)

Autopilot is a an enterprise cloud computing and software development company.

5

Funding Rounds

$22.0m

Money raised

Infusionsoft logo

Infusionsoft

Infusionsoft is a Chandler, Arizona-based company founded in 2001 by Clate Mask.

3

Funding Rounds

$70.9m

Money raised

Exclaimer logo

Exclaimer

Email signature management platform.

3

Funding Rounds

$181.7m

Money raised

SimplyCast logo

SimplyCast

SimplyCast is a marketing Automation Software founded by Saeed El-Darahali.

5

Funding Rounds

$3.3m

Money raised

LiveIntent (advertising company) logo

LiveIntent (advertising company)

LiveIntent is a New York-based company founded in 2009.

2

Funding Rounds

$12.6m

Money raised

Gowento logo

Gowento

Platform for managing customer loyalty programs both online and offline.

1

Funding Rounds

$11.0m

Money raised

Vero (e-commerce company) logo

Vero (e-commerce company)

Vero is an event driven email platform for customer-focused teams founded in 2012 by Chris Hexton.

3

Funding Rounds

$2.7m

Money raised

Mapp Digital logo

Mapp Digital

Mapp Digital is a digital marketing platform founded by Christian Sauer, Elad Kushnir and Italy Levy.

1

Funding Rounds

$1.8m

Money raised

MailClark logo

MailClark

MailClark is an artificial Intelligence company founded in 2014 by Anthony BLETON-MARTIN, Antoine Lefeuvre, Julian ESPERAT and Gilles FELIX.

2

Funding Rounds

$1.3m

Money raised

iContact logo

iContact

iContact is an affordable Email Marketing Solution founded by Aaron Houghton.

3

Funding Rounds

$45.9m

Money raised

Campaign Monitor logo

Campaign Monitor

Campaign Monitor is an email Marketing & Automation founded in 2004 by Ben Richardson.

2

Funding Rounds

$250.0m

Money raised

Valimail logo

Valimail

Valimail is a San Francisco-based developer of cybersecurity, identity-based, anti-phishing solutions.

3

Funding Rounds

$82.0m

Money raised

Fishbowl logo

Fishbowl

Fishbowl was a provider of guest-marketing products and services for the restaurant industry. Acquired by Symphony Technology.

1

Funding Rounds

$5.3m

Money raised

PreVeil (software company) logo

PreVeil (software company)

PreVeil is a cybersecurity company, born out of research at MIT, that provides end-to-end encryption that people can actually use -- for email, files, and more.

1

Funding Rounds

Mautic logo

Mautic

Mautic is a Boston-based company founded in 2013 by Matt Johnston, DB Hurley and Gary Allred.

1

Funding Rounds

$5.0m

Money raised

AVANAN logo

AVANAN

AVANAN is a cloud Email Security Platform founded in 2015.

2

Funding Rounds

$50.0m

Money raised

Responsys logo

Responsys

Responsys was a California-based software development company and provider of cloud-based B2C marketing software. The company was acquired by Oracle in December 2013.

1

Funding Rounds

$22.5m

Money raised

Rezora logo

Rezora

Rezora is a Boulder, Colorado-based company founded in 2009 by Paul Reinarz, Rick Chastain and Hugh Morgan.

1

Funding Rounds

$18.0k

Money raised

Xobni logo

Xobni

Xobni is a san Francisco based software company founded in 2006.

6

Funding Rounds

$37.6m

Money raised

Mad Mimi logo

Mad Mimi

Mad Mimi is a company founded in 2008 by Gary Levitt.

1

Funding Rounds

$110.0k

Money raised

MessageGears logo

MessageGears

MessageGears is an Atlanta-based company founded in 2010 by Michael Robinson, Dan Roy and Taylor Jones.

2

Funding Rounds

$10.8m

Money raised

Emma (Company) logo

Emma (Company)

Email Marketing Software That Works For You

1

Funding Rounds

$6.0m

Money raised

Compose.ai logo

Compose.ai

Compose.ai is a Chicago-based software development company offering an AI writing assistant that is available as a free Chrome extension.

1

Funding Rounds

$2.1m

Money raised

Contactlab logo

Contactlab

Contactlab is a digital marketing platform founded in 2022 by Massimo Fubini.

1

Funding Rounds

$4.3m

Money raised

Salesfire logo

Salesfire

Toolkit for improving website conversion and online retail through machine learning and various e-commerce services.

1

Funding Rounds

$5.2m

Money raised

Julie Desk logo

Julie Desk

Julie Desk is a virtual assistant that uses artificial intelligence to schedule meetings and appointments of a user.

1

Funding Rounds

$2.8m

Money raised

Ranktab logo

Ranktab

A software company offering a platform for making better business decisions based on data collection and analytics.

3

Funding Rounds

$187.5k

Money raised

Trendline Interactive logo

Trendline Interactive

Trendline is a full-service email marketing agency with the single goal of helping great brands build great email marketing programs.

3

Funding Rounds

LogicNow logo

LogicNow

LOGICnow develops and provides cloud-based IT management solutions to enterprises.

1

Funding Rounds

$27.6m

Money raised

iPost logo

iPost

iPost is a company founded in 1996 by Bart Schaefer.

1

Funding Rounds

$954.7k

Money raised

Lavender logo

Lavender

Lavender is designed to improve your sales team's workflow.

2

Funding Rounds

$13.2m

Money raised

BombBomb logo

BombBomb

BombBomb is a video Email from Gmail, Mobile, and Web founded in 2006 by Conor McCluskey.

1

Funding Rounds

$500.0k

Money raised

VerticalResponse logo

VerticalResponse

VerticalResponse is an email Marketing Services & Tools for Business founded in 2001 by Janine Popick.

1

Funding Rounds

$1.4m

Money raised

Dynmark International logo

Dynmark International

Dynmark International is a dotdigital Engagement Cloud.

1

Funding Rounds

$981.0k

Money raised

Actito logo

Actito

Agile Marketing Automation Platform

1

Funding Rounds

$900.0k

Money raised

Sparkpost logo

Sparkpost

Email Delivery and Analytics for Developers and Enterprises

3

Funding Rounds

$200.5m

Money raised

Smarterhq logo

Smarterhq

Smarterhq is a multichannel Behavioral Marketing Platform founded in 2010.

1

Funding Rounds

$13.0m

Money raised

Sigstr logo

Sigstr

Sigstr is an Indianapolis-based company founded in 2015.

3

Funding Rounds

$12.0m

Money raised

smartFOCUS logo

smartFOCUS

smartFOCUS is a message Cloud Email, Mobile, & Social Marketing founded by Nick Heys.

1

Funding Rounds

$30.0m

Money raised

FreshAddress logo

FreshAddress

FreshAddress is an email Address Experts founded by Bill Kaplan.

1

Funding Rounds

Gated (email company) logo

Gated (email company)

Gated offers an email solution that challenges unknown senders to make a charitable donation in order to reach you.

1

Funding Rounds

$3.3m

Money raised

1

Funding Rounds

$7.0m

Money raised

Pure360 logo

Pure360

Pure360 is a United Kingdom-based company founded in 2001.

1

Funding Rounds

$15.9m

Money raised