| # | Company | Location | Employees | Total Funding | Last Round | Last Funded |
|---|---|---|---|---|---|---|
| 1 |
Brevo
Brevo is a developer of a cloud-based digital marketing platform used to build s…
|
Paris | 1K - 5K | $780.7M | Secondary Market | 2025-12-03 |
| 2 |
Abnormal AI
Abnormal AI is the leading AI-native human behavior security platform.
|
Las Vegas | 1K - 5K | $534.0M | Series D | 2024-08-06 |
| 3 |
Gem
Gem is a recruiting platform that integrates with third-party applications such …
|
San Francisco | 1K - 5K | $148.0M | Series C | 2021-09-28 |
| 4 |
EasyDMARC
EasyDMARC is an email security firm that simplifies the email security and authe…
|
Dover | 51 - 100 | $22.3M | Series A | 2024-09-16 |
| 5 |
Superhuman
Superhuman is a software platform that weaves social insights into a workflow.
|
San Francisco | 101 - 250 | $108.0M | Series C | 2021-08-04 |
| 6 |
Red Sift
Red Sift's Digital Resilience Platform protects your perimeter, your brand and y…
|
London | 101 - 250 | $64.8M | Non Equity Assistance | 2026-03-19 |
| 7 |
Salesloft
Our industry-leading Revenue Orchestration Platform uses purpose-built AI to hel…
|
Atlanta | 501 - 1K | $246.2M | Series E | 2021-01-06 |
| 8 |
Proofpoint
Proofpoint provides cloud-based email security, e-discovery, and compliance solu…
|
Sunnyvale | 1K - 5K | $885.5M | Post Ipo Debt | 2019-08-21 |
| 9 |
Material Security
Material Security is an email security company that develops data-driven securit…
|
Redwood City | 51 - 100 | $162.0M | Series C | 2022-05-11 |
| 10 |
Resend
Resend is an email API for developers.
|
San Francisco | 1 - 10 | $21.5M | Series A | 2024-12-04 |
| 11 |
Knak
The World First Email & Landing Page Creation Platform for Enterprise Marketers
|
Ottawa | 51 - 100 | $25.0M | Series A | 2021-11-10 |
| 12 |
Mixmax
Mixmax is a sales engagement platform that helps sales and customer success team…
|
San Francisco | 101 - 250 | $13.3M | Series A | 2018-02-06 |
| 13 |
Letterhead
Newsletter operation system that turns newsletters into a growth engine, helping…
|
Miami | 51 - 100 | $39.3M | Series A | 2025-10-22 |
| 14 |
Workshop
Workshop is an internal communications platform that offers employee communicati…
|
Omaha | 101 - 250 | $27.7M | Series Unknown | 2025-03-18 |
| 15 |
New Era Cap
New Era Cap is a headwear and fashion apparel brand which offers products such a…
|
Buffalo | 1K - 5K | $775.0M | Debt Financing | 2023-09-08 |
| 16 |
Lykos Therapeutics
Lykos Therapeutics catalyzes healing and well-being through psychedelic drug dev…
|
San Jose | 101 - 250 | $150.0M | Series B | 2025-05-30 |
| 17 |
Cofense
Cofense provides phishing threat management and remediation solutions to the wor…
|
Leesburg | 251 - 500 | $58.0M | Debt Financing | 2021-02-02 |
| 18 |
TimelyCare
TimelyCare is higher education's most trusted virtual health and well-being prov…
|
Fort Worth | 251 - 500 | $65.7M | Series B | 2021-01-26 |
| 19 |
Sedna
Sedna is a data-driven communication platform that pushes profitability.
|
London | 101 - 250 | $96.0M | Debt Financing | 2025-04-03 |
| 20 |
MessageGears
MessageGears is a warehouse-native, cross-channel customer engagement platform b…
|
Atlanta | 101 - 250 | $80.4M | Series Unknown | 2022-12-12 |
| 21 |
Clara Labs
Clara Labs provides scheduling service that coordinates when, where, and how can…
|
San Francisco | 11 - 50 | $11.6M | Series A | 2017-07-19 |
| 22 |
NetDocuments
NetDocuments enables businesses of all sizes to create, secure, manage, access, …
|
Lehi | 251 - 500 | $30.0M | Secondary Market | 2021-05-25 |
| 23 |
Hypertype
AI industrial workflows for machinery aftersales
|
Stockholm | 1 - 10 | $2.2M | Seed | 2024-07-04 |
| 24 |
Constant Contact
Constant Contact makes digital marketing easy and effective for small businesses…
|
Waltham | 1K - 5K | $423.2M | Private Equity | 2025-10-07 |
| 25 |
Classic Football Company
Classic Football Shirts is the home of classic, rare, retro and vintage football…
|
Manchester | 51 - 100 | $38.5M | Series Unknown | 2024-05-16 |
| 26 |
Inky
Inky is a cyber-security company that secures email against phishing.
|
College Park | 11 - 50 | $31.8M | Series B | 2020-06-04 |
| 27 |
Valimail
Valimail provides zero-trust email solutions services.
|
Boulder | 101 - 250 | $84.0M | Series C | 2019-06-19 |
| 28 |
Saudi Azm
Saudi Azm is a company that provides creative solutions for projects with a qual…
|
Riyadh | 51 - 100 | $20.0M | Post Ipo Debt | 2025-12-14 |
| 29 |
Klutch.ai
SaaS solution for after-sales teams. Klutch puts critical client insights at you…
|
London | 1 - 10 | $8.1M | Seed | 2025-06-26 |
| 30 |
Gmelius
B2B SaaS offering AI assistants and shared inboxes for Gmail.
|
Geneva | 11 - 50 | $2.4M | Seed | 2021-01-01 |
| 31 |
Exclaimer
Exclaimer is a provider of an email signature management platform for cloud serv…
|
Farnborough | 251 - 500 | $162.6M | Private Equity | 2020-12-07 |
| 32 |
ContactMonkey
ContactMonkey is an internal communications platform that helps companies create…
|
Toronto | 101 - 250 | $40.5M | Series Unknown | 2025-05-15 |
| 33 |
AgentMail
AgentMail provides an API-first email platform that enables AI agents to send, r…
|
San Francisco | 1 - 10 | $6.5M | Seed | 2026-03-10 |
| 34 |
Mailgun
Mailgun offers APIs that allow users to send, receive and track emails.
|
San Francisco | 251 - 500 | $51.1M | Private Equity | 2017-02-22 |
| 35 |
24SevenOffice
24SevenOffice is a Norwegian software company developing and marketing SaaS-base…
|
Oslo | 101 - 250 | $340.9M | Post Ipo Equity | 2022-03-30 |
| 36 |
Sendmarc
Sendmarc offers email protection from phishing attacks and email spoofing.
|
Raleigh | 51 - 100 | $7.0M | Series A | 2023-02-08 |
| 37 |
Egress Software
Egress is a software company that specializes in human layer security designed t…
|
London | 101 - 250 | $47.4M | Series C | 2018-12-18 |
| 38 |
Spike
Spike is an internet company that transforms the inbox into a chat-like interfac…
|
Herzliya | 11 - 50 | $30.3M | Series A | 2021-07-11 |
| 39 |
Dyspatch
Dyspatch is an email production platform that helps Enterprise organizations cre…
|
Victoria | 11 - 50 | $13.3M | Seed | 2022-01-25 |
| 40 |
Paubox
HIPAA compliant email and text made easy.
|
San Francisco | 11 - 50 | $14.8M | Series Unknown | 2022-08-18 |
| 41 |
rift
rift helps you warm up and authenticate domains, send email campaigns and valida…
|
San Francisco | 1 - 10 | $5.5M | Seed | 2024-07-24 |
| 42 |
GreatHorn
GreatHorn provides protection for cloud email systems, via advanced threat detec…
|
Waltham | 11 - 50 | $21.9M | Series Unknown | 2022-02-23 |
| 43 |
Signaturit
Signaturit designs a electronic signature software that offers trust services th…
|
Barcelona | 101 - 250 | $11.7M | Series A | 2019-02-19 |
| 44 |
InceptionCyber.ai
Next generation Email Security for the age of AI.
|
Palo Alto | 11 - 50 | $3.1M | Convertible Note | 2025-12-01 |
| 45 |
June.ai
June.ai is a communication hub to replace email
|
New York | 1 - 10 | $1.5M | Pre Seed | 2018-10-11 |
| 46 |
Tymely
Tymely deploys AI agents to eCommerce Customer Service teams to lower cost, impr…
|
New York | 11 - 50 | $7.0M | Seed | 2022-09-19 |
| 47 |
Nylas
Nylas is the cpaas company that empowers businesses worldwide to unlock the powe…
|
San Francisco | 101 - 250 | $175.0M | Series C | 2021-06-17 |
| 48 |
Ridibooks
Ridibooks provide excellent quality services developed based on our superior tec…
|
Adygeysk | 51 - 100 | $28.0M | Series C | 2017-06-13 |
| 49 |
Canary Mail
Canary Mail brings enterprise-grade email security to individuals & teams in a w…
|
San Francisco | 11 - 50 | $3.4M | Series Unknown | 2022-03-22 |
| 50 |
MailMaestro
Maestro Labs develops AI-driven tools like MailMaestro for faster, quality email…
|
Singapore | 1 - 10 | $1.3M | Seed | 2024-09-04 |