How many email patterns does 37signals use?

37signals uses 10 known email patterns.

What domain does 37signals use for work emails?

37signals uses 37signals.com, basecamp.com for work email addresses.

Most Common Email Formats at 37signals

37signals's most common email format is First@37signals.com (ex. John@37signals.com), used for 76% of 37signals.com addresses. 37signals uses 7 email patterns across 2 domains: 37signals.com and basecamp.com. Percentages are the share of addresses within each domain.

@37signals.com

3 patterns

Format	Example	Share of 37signals.com
First@37signals.comMost common	John@37signals.com	76%
FLast@37signals.com	JDoe@37signals.com	19%
FirstLast@37signals.com	JohnDoe@37signals.com	5%

@basecamp.com

4 patterns

Format	Example	Share of basecamp.com
First.Last@basecamp.comMost common	John.Doe@basecamp.com	62%
First@basecamp.com	John@basecamp.com	34%
Last@basecamp.com	Doe@basecamp.com	3%
First.L@basecamp.com	John.D@basecamp.com	1%

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Browse 37signals's employee directory (about 175 employees) and reveal verified emails free.

Frequently Asked Questions

What does 37signals do?

37signals was founded in 1999 and operates in the Software Development industry, alongside similar companies like Airtable, ClickUp and Notion. You can visit 37signals.com or contact 37signals's headquarters by phone at

+1-312-505-****

. Explore 37signals's company overview page for more information.

What is 37signals's email address format?

37signals's email format typically follows the pattern of First@37signals.com; this email format is used 76% of the time. Other contacts within LeadIQ's database had email formats such as FLast@37signals.com and FirstLast@37signals.com. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does 37signals have currently?

37signals has approximately 175 employees as of October 2026. Key team members to contact include Chief Executive Officer: J. H., Entrepreneur: S. P. and Co-Owner: M. V. For more team information and contact data, explore 37signals's employee directory with LeadIQ.

37signals Email Format

Q: What is 37signals's email address format?

37signals's email format typically follows the pattern of ${fn}. Other email formats include ${fi}${ln} and ${fn}${ln}.

Software DevelopmentUnited States51-200 Employees

37signals is a software development company based in the United States with a mid-sized team. It develops Basecamp and HEY, two software products: Basecamp focuses on project management and company-wide communication, while HEY is an email system designed to improve how messages are handled.

Basecamp aims to address common challenges faced by growing organizations by organizing projects and facilitating cross-team collaboration. HEY offers an email experience designed to be more usable and less burdensome. In September 2022, 37signals announced the release of Basecamp 4, a newer version of its project management platform with additional features intended to help teams focus on actual work.

Most common format

First@37signals.com

Example: John@37signals.com

7 patterns across 2 domains. See all formats

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Most Common Email Formats at 37signals

@37signals.com

@basecamp.com

Need a specific person's email?

Frequently Asked Questions

What does 37signals do?

What is 37signals's email address format?

How many employees does 37signals have currently?

37signals Email Format

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What you can expect from LeadIQ:

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Everything for prospecting,
in one platform.