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Top 72 Email Verification Software SaaS Companies in May 2026

As of May 2026, there are 72 SaaS companies in Email Verification Software. They have combined revenues of $2.1B and employ 28.9K people. They have raised $271.3M and serve 25.2M customers combined.

Email Verification Software is a category of tools designed to validate and verify the deliverability of email addresses. These tools primarily help businesses maintain list hygiene by identifying invalid, temporary, or disposable email addresses, thereby improving email deliverability rates and ensuring that marketing campaigns effectively reach their target audiences. The primary use cases for email verification software include lead validation, user registration verification, and list cleaning. Businesses use these tools to enhance the quality of their email lists for various workflows such as email marketing, customer relationship management (CRM) maintenance, and fraud prevention. Common features of these tools often include real-time verification, batch processing, and integration capabilities with other software platforms. Typical buyer personas for email verification software include marketing teams focused on campaign effectiveness, sales operations seeking to improve lead quality, and IT departments responsible for data integrity. HR teams may also engage with these tools to ensure the validity of candidate contact information during the recruitment process.

Companies
72
Revenue
$2.1B
Funding
$271.3M
Employees
28.9K

Filters

Sorting: Highest -> Lowest

Filters

Top Email Verification Software Companies

Showing 10 of 4 companies ranked by annual revenue.

1
Zoho

Chennai, Tamil Nadu, India

cloud-based business management and productivity solutions.

Revenue
$1.4B
Customers
250K
Year founded
1996
Funding
$7.3M
Team size
24K
Growth
22.73%
2
Rocketreach

Bellevue, Washington, United States

Rocketreach finds email, phone & social media for 250M+ professionals. Try searches for free by visiting rocketreach.co

Revenue
$221M
Customers
75K
Year founded
2015
Funding
-
Team size
97
Growth
112.5%
3
Apollo.io

San Francisco, California, United States

data platform for sales and marketing

Revenue
$150M
Customers
5K
Year founded
2015
Funding
$251.3M
Team size
1.6K
Growth
50%
4
GBG Plc

Chester, United Kingdom

GBG is the leading expert in global identity and location tech, enabling safe and rewarding digital lives for genuine people, everywhere. For over 30 years, we have combined global data with our innovative technology to make sure that genuine people everywhere can digitally prove who they are and where they live. We are an essential ingredient that protects against digital crime, strengthens business resilience and drives responsible growth, at scale, across a diverse range of sectors. Today, our team of over 1,100 people serve more than 20,000 customers globally.

Revenue
$146.5M
Customers
-
Year founded
1989
Funding
-
Team size
1.3K
Growth
-

Inclusion Criteria

- The software must be designed to validate email addresses before usage in campaigns or databases. - It must offer features to identify invalid, disposable, or temporary email addresses. - The product should include real-time verification capabilities for immediate feedback. - It must support batch processing to handle bulk email lists for cleaning. - Integration with email marketing platforms or CRMs is essential for seamless operations. - Not limited to validation; must also provide data hygiene solutions to maintain email list quality.