Companies using Thunderbird by Mozilla Corporation in 2025
As of 2025, 754 verified companies use Thunderbird – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is Thunderbird by Mozilla Corporation?
Thunderbird by Mozilla, functions as a free and open-source email client. It’s widely used to streamline email communication, calendar management, and task organization. It is typically used across various industries and departments, including marketing, sales, and customer service, to manage communications.
Last updated date
August 17, 2025
Number of Companies using
754
The majority are based in the
United States
Most common industry?
Business Services
Thunderbird’s sample user list in 2025
Company Name
Country
Industry
Employees
Revenue
Product
Kroger
United States
United States
Department Stores, Shopping Centers & Superstores
414000
$150B
Thunderbird
We have data on 754 companies that use Thunderbird. Our Thunderbird customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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Thunderbird users and customers by country
United States
Canada
2.6K Companies
United Kingdom
2.6K Companies
Australia
2.6K Companies
India
2.6K Companies
Where Thunderbird Shows Up Most
Thunderbird is used across a wide range of sectors:
Business Services
Hospitality
Education
Hospitals & Physicians Clinics
Organizations
From lean startups to global enterprises, Thunderbird’s footprint is wide, and that means opportunity.
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FAQs
Contact UsHow latest this data is?
This data is updated on August 17, 2025
What is Thunderbird?
Thunderbird is a free and open-source email client by Mozilla, widely used for email communication, calendar management, and task organization.
How many companies are using Thunderbird in 2025?
As of 2025, our data shows that 754 verified companies are using Thunderbird.
What types of companies are using Thunderbird?
Thunderbird is used across various industries and company sizes. Our data includes details on industry classification, organizational size, geographical location, funding rounds, and revenue figures.
What industries are most commonly using Thunderbird?
The industries most commonly using Thunderbird include Business Services, Hospitality, Education, Hospitals & Physicians Clinics, and Organizations.
Which country has the most companies using Thunderbird?
The United States has the highest number of companies using Thunderbird.