Insights

Gathering insights about 37signals…

Similar companies to 37signals

37signals Tech Stack

37signals uses 8 technology products and services including PHP, JavaScript, Elasticsearch, and more. Explore 37signals's tech stack below.

PHP
Programming Languages
JavaScript
Programming Languages
Elasticsearch
Search Engines
X-XSS-Protection
Security
HSTS
Security
X-Content-Type-Options
Web & Portal Technology
Ruby on Rails
Web Frameworks
Google Plus
Widgets

Media & News

37signals LLC has issues with violation of duties.
Signa removes CEO of property units, alleging violation of duties.
Dec 10, 2023 | www.bloomberg.com
37signals LLC launched Basecamp 4 on Sep 27th '22.
Today, 37signals announced the launch of Basecamp 4, the latest version of its project management platform, with more features to help teams focus on the actual work at hand, rather than the overhead of managing it.
Sep 27, 2022 | www.businesswire.com

37signals's Email Address Formats

37signals uses at least 2 format(s):

37signals Email Formats	Example	Percentage
First.Last@basecamp.com	John.Doe@basecamp.com	61%
First@basecamp.com	John@basecamp.com	33%
Last@basecamp.com	Doe@basecamp.com	3%
First.L@basecamp.com	John.D@basecamp.com	1%
First-Last@basecamp.com	John-Doe@basecamp.com	1%
F.Last@basecamp.com	J.Doe@basecamp.com	1%
First@37signals.com	John@37signals.com	76%
FLast@37signals.com	JDoe@37signals.com	19%
FirstLast@37signals.com	JohnDoe@37signals.com	5%

Frequently Asked Questions

Where is 37signals's headquarters located?

37signals's main headquarters is located at US. The company has employees across 6 continents, including North AmericaAsiaEurope.

What is 37signals's phone number?

You can contact 37signals's main corporate office by phone at

+1-312-505-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is 37signals's official website and social media links?

37signals's official website is 37signals.com and has social profiles on LinkedIn.

How much revenue does 37signals generate?

As of October 2025, 37signals's annual revenue is estimated to be $5M.

What is 37signals's SIC code NAICS code?

37signals's SIC code is 7311 - Advertising Agencies NAICS code is 5112 - Software Publishers.

How many employees does 37signals have currently?

As of October 2025, 37signals has approximately 176 employees across 6 continents, including North AmericaAsiaEurope. Key team members include Chief Executive Officer: J. H.Chief Executive Officer: S. J.Head Of Marketing: M. D.. Explore 37signals's employee directory with LeadIQ.

What industry does 37signals belong to?

37signals operates in the Software Development industry.

What technology does 37signals use?

37signals's tech stack includes PHPJavaScriptElasticsearchX-XSS-ProtectionHSTSX-Content-Type-OptionsRuby on RailsGoogle Plus.

What is 37signals's email format?

37signals's email format typically follows the pattern of First.Last@basecamp.com. Find more 37signals email formats with LeadIQ.

When was 37signals founded?

37signals was founded in 1999.

37signals

Software DevelopmentUnited States51-200 Employees

37signals makes Basecamp and HEY. 

Basecamp solves the critical problems that every growing business deals with. It’s the saner, calmer, organized way to manage your projects and communicate company-wide. 

HEY is our fresh approach on email. Email can be overwhelming and a total mess. Not anymore. We fixed it. HEY transforms email into something you want to use, not something you’re forced to deal with.