# 37signals

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American web software company

37signals LLC Type Private Founded 1999; 27 years ago (1999) Founder Jason Fried Carlos Segura Ernest Kim Headquarters Chicago, Illinois , United States Key people Jason Fried David Heinemeier Hansson Products Basecamp, Ruby on Rails, Highrise, HEY Services Web applications Number of employees 34 (2021) Website 37signals.com

**37signals** (formerly **Basecamp** before reverting to its original name) is an American web software company based in [Chicago, Illinois](/source/Chicago%2C_Illinois). The firm was co‑founded in 1999 by Jason Fried, Carlos Segura, and Ernest Kim as a [web design](/source/Web_design) company.[1]

Since mid‑2004, the company's focus has shifted from web design to web application development. Its first commercial application was Basecamp, followed by Backpack, Campfire, and Highrise.[2] The [open source](/source/Open-source_license) web application [framework](/source/Framework_(computer_science)) [Ruby on Rails](/source/Ruby_on_Rails) was initially created by [David Heinemeier Hansson](/source/David_Heinemeier_Hansson) for internal use at 37signals, before being publicly released in 2004.[3][4]

In February 2014, the company adopted a new strategy, focusing entirely on its flagship product, the software package also named Basecamp, and renaming the company from 37signals to Basecamp.[5][6] Jason Fried and David Heinemeier Hansson have published several books under the 37signals name, and in May 2022, citing their present-day focus on both Basecamp and [HEY](/source/Hey_(email_service)), reverted to 37signals as their company name.[7]

## History

Logo used until 2019

The company 37signals was originally named after the 37 extraterrestrial radio signals identified by astronomer [Paul Horowitz](/source/Paul_Horowitz) as potential [messages from extraterrestrial intelligence](/source/Messages_from_extraterrestrial_intelligence).[8] Work on the company's first product, the [project management application](/source/Project_management_software) Basecamp, began in 2003.[9]

By 2005, the company had moved away from consulting work to focus exclusively on its own web applications. The [Ruby on Rails](/source/Ruby_on_Rails) [web application framework](/source/Web_application_framework) was extracted from the work on Basecamp and released as [open source](/source/Open-source_license).[4] In 2006, the company announced that [Jeff Bezos](/source/Jeff_Bezos) had acquired a minority stake via his personal investment company, *[Bezos Expeditions](/source/Bezos_Expeditions)*.[10][11] The same year, Jason Fried, 37signals CEO, was included among [MIT Technology Review](/source/MIT_Technology_Review)'s *[TR35](/source/MIT_Technology_Review#Innovators_Under_35)* honoring technologists and scientists under the age of 35 for their ground-breaking inventions and research.[12]

In 2014, 37signals changed its name to Basecamp and chose to focus solely on that product.[13] As of August 2018, the Highrise product also stopped accepting new signups.[14]

In September 2019, Basecamp gained some notoriety for purchasing [Google Ads](/source/Google_Ads) in the name of their own company because other organizations bought the keyword "Basecamp", causing four competitors to appear above Basecamp's own website in search results. Jason Fried called Google's [search result](/source/Search_engine_optimization) policy a "[shakedown](/source/Extortion)". A Google spokesperson responded that competitors are not allowed to use [trademarked](/source/Trademarked) names in their keywords if the owner of the trademark files a complaint with Google. Since the story broke, Google has stopped competitors from using the Basecamp trademark.[15]

After Apple threatened to pull the service's iOS app, Hey, from the App Store, in September 2020, Basecamp signed up to help launch the [Coalition for App Fairness](/source/Coalition_for_App_Fairness) to fight [Apple](/source/Apple_Inc.)'s app store policies and "create a level playing field" for businesses.[16]

In 2021, employees raised concerns about an internal collection of "funny" customer names, including names of ostensibly American, European, African, and Asian origin.[17][18] Basecamp responded by announcing several policy changes, such as forbidding "societal and political discussions" in internal forums, which Fried described as a "major distraction."[19] The company offered severance packages to employees who disagreed with the changes. Ultimately, one-third of the company resigned.[20][19]

37signals has started [cloud repatriation](/source/Cloud_repatriation) of its services, which involves moving its resources away from [cloud computing](/source/Cloud_computing).[21][22] [Chief technology officer](/source/Chief_technology_officer) [David Heinemeier Hansson](/source/David_Heinemeier_Hansson) said in September 2023 that the project had saved the company $1 million.[23][21]

## Products

### Basecamp

Basecamp is 37signals' first product, a [web-based](/source/Web_application) [project management](/source/Project_management) tool launched in 2004. Its primary features are [to-do](/source/Task_list) lists, milestone management, forum-like messaging, file sharing, and time tracking.[24]

Basecamp Next was released in 2012, and Basecamp 3 was released in 2014.[25][26] Basecamp 3 supports replies by email, but does not support [bottom-posting](/source/Bottom-posting).

### Campfire

Campfire, a business-oriented [online chat](/source/Online_chat) service, launched in 2006. It was later merged into Basecamp 3, and was discontinued as a standalone service in 2013.[27]

In 2024 37signals re-launched Campfire as part of their ONCE line of products, allowing customers to buy the software outright to self-host on their own servers.[28]

Since 21 August 2025 Campfire is opensource software under a MIT license [29]

### Highrise

Highrise is a customer relationship management (CRM) product developed by 37signals and launched in 2007.[30] Highrise was spun off as its own company in 2014 and operated as an independent business headed by Nathan Kontny, with 37signals retaining ownership.[31] In 2018 37signals (under the new Basecamp brand) brought Highrise back in-house, and closed it for new sign ups later that year. The product remains in use by a number of companies.[32]

### Ruby on Rails

Main article: [Ruby on Rails](/source/Ruby_on_Rails)

Ruby on Rails is a free [web application framework](/source/Web_application_framework) created by [David Heinemeier Hansson](/source/David_Heinemeier_Hansson), now a partner at 37signals. It was originally used to make 37signals' first product, [Basecamp](/source/Basecamp_(software)), and was then extracted and released as [open source](/source/Open-source_license) in 2004.[4]

### Hey

Main article: [Hey (email service)](/source/Hey_(email_service))

**Hey** (stylized in all-caps as **HEY**) is a premium email service started in June 2020 by Basecamp. A few days after its release, [Apple](/source/Apple_Inc.) threatened to pull the service's iOS app from the App Store unless Basecamp created an in-app subscription option and shared a cut of the revenue with Apple.[33]

## Works

Jason Fried and [David Heinemeier Hansson](/source/David_Heinemeier_Hansson) published several books under the 37signals name.

- *Defensive Design for the Web: How to improve error messages, help, forms, and other crisis points*, [New Riders Press](/source/New_Riders_Press), 2004 [ISBN](/source/ISBN_(identifier)) [0-7357-1410-X](https://en.wikipedia.org/wiki/Special:BookSources/0-7357-1410-X)

- *Getting Real: The Smarter, Faster, Easier Way to Build a Successful Web Application*, 37signals, 2006, [ISBN](/source/ISBN_(identifier)) [0-578-0128-12](https://en.wikipedia.org/wiki/Special:BookSources/0-578-0128-12)

- *Rework* (2010, RandomHouse) became a [*New York Times* best seller](/source/The_New_York_Times_Best_Seller_list).[34][35]

- *Remote: Office Not Required* (2013, RandomHouse), which is about allowing employees to work from remote offices, was also a *New York Times* best seller. The book was about 37signals' experience with a largely remote workforce.[36][37]

- *It Doesn't Have to Be Crazy at Work*, October 2, 2018, [ISBN](/source/ISBN_(identifier)) [978-0062874788](https://en.wikipedia.org/wiki/Special:BookSources/978-0062874788)

## References

1. **[^](#cite_ref-1)** Caplan, Jeremy (May 17, 2007). ["Small Is Essential: With a million users and a payroll of eight, software sensation 37signals excels by doing more with less"](http://content.time.com/time/magazine/article/0,9171,1622565,00.html). *[Time](/source/Time_(magazine))*. [Archived](https://web.archive.org/web/20160919230158/http://content.time.com/time/magazine/article/0,9171,1622565,00.html) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-2)** Harris, Melissa (February 5, 2014). ["37signals changing name to Basecamp, shedding products"](https://www.chicagotribune.com/2014/02/05/37signals-changing-name-to-basecamp-shedding-products/). *Chicago Tribune*. [Archived](https://web.archive.org/web/20160919230919/http://articles.chicagotribune.com/2014-02-05/business/chi-37signals-changing-name-to-basecamp-20140205_1_basecamp-products-37signals) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-3)** Harris, Melissa (September 4, 2012). ["37signals takes stake in The Starter League"](https://www.chicagotribune.com/2012/09/04/37signals-takes-stake-in-the-starter-league/). *Chicago Tribune*. [Archived](https://web.archive.org/web/20160919232416/http://articles.chicagotribune.com/2012-09-04/business/chi-37singals-takes-stake-in-the-starter-league-20120904_1_ruby-rails-37signals) from the original on September 19, 2016. Retrieved September 19, 2016.

1. ^ [***a***](#cite_ref-ruby_4-0) [***b***](#cite_ref-ruby_4-1) [***c***](#cite_ref-ruby_4-2) Park, Andrew (February 25, 2008). ["The Brash Boys at 37signals Will Tell You: Keep it Simple, Stupid"](http://archive.wired.com/techbiz/media/magazine/16-03/mf_signals?currentPage=all). *Wired*. [Archived](https://web.archive.org/web/20160919231134/http://archive.wired.com/techbiz/media/magazine/16-03/mf_signals?currentPage=all) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-5)** Kepes, Ben (February 5, 2014). ["37Signals No More – Changes Name To Basecamp And Drops All Products But Its Namesake"](https://www.forbes.com/sites/benkepes/2014/02/05/37signals-no-more-changes-name-to-basecamp-and-drops-all-products-but-its-namesake/#4881a4e47e47). *Forbes*. [Archived](https://web.archive.org/web/20161005165651/http://www.forbes.com/sites/benkepes/2014/02/05/37signals-no-more-changes-name-to-basecamp-and-drops-all-products-but-its-namesake/#4881a4e47e47) from the original on October 5, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-6)** Fried, Jason (March 2014). ["Why 37signals Refocused on a Single Product: Basecamp"](http://www.inc.com/magazine/201403/jason-fried/basecamp-focus-one-product-only.html). *Inc*. [Archived](https://web.archive.org/web/20160423032335/http://www.inc.com/magazine/201403/jason-fried/basecamp-focus-one-product-only.html) from the original on April 23, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-7)** ["37signals: Hello again"](https://world.hey.com/jason/37signals-hello-again-117eae60). *world.hey.com*. [Archived](https://web.archive.org/web/20220503150516/https://world.hey.com/jason/37signals-hello-again-117eae60) from the original on May 3, 2022. Retrieved May 3, 2022.

1. **[^](#cite_ref-radio_8-0)** ["37signals.com: What's in a Name?"](http://www.37signals.com/33.html). 37signals. [Archived](https://web.archive.org/web/20070427111229/http://www.37signals.com/33.html) from the original on April 27, 2007. Retrieved April 1, 2007.

1. **[^](#cite_ref-9)** Dusto, Amy (May 27, 2014). ["How Basecamp grew from an internal project to generating millions in revenue"](https://www.builtinchicago.org/blog/how-basecamp-grew-side-project-one-world-s-most-thriving-startups). Built in Chicago. [Archived](https://web.archive.org/web/20161013063229/http://www.builtinchicago.org/blog/how-basecamp-grew-side-project-one-world-s-most-thriving-startups) from the original on October 13, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-jeffbezos_10-0)** [Arrington, Michael](/source/Michael_Arrington) (July 20, 2006). ["37 Signals Takes Jeff Bezos Investment"](https://techcrunch.com/2006/07/20/37-signals-takes-jeff-bezos-investment/). *[TechCrunch](/source/TechCrunch)*. [Archived](https://web.archive.org/web/20080323101905/http://www.techcrunch.com/2006/07/20/37-signals-takes-jeff-bezos-investment/) from the original on March 23, 2008. Retrieved March 21, 2008.

1. **[^](#cite_ref-11)** Hof, Rob (July 19, 2006). ["37Signals, 1 Big New Investor: Jeff Bezos"](https://www.bloomberg.com/news/articles/2006-07-19/37signals-1-big-new-investor-jeff-bezos). Bloomberg. [Archived](https://web.archive.org/web/20160919233012/http://www.bloomberg.com/news/articles/2006-07-19/37signals-1-big-new-investor-jeff-bezos) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-12)** Vogels, Werner (September 8, 2006). ["The 2006 Young Innovators"](https://www.allthingsdistributed.com/2006/09/the_2006_young_innovators.html). *allthingsdistributed.com*. Retrieved March 9, 2021.{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

1. **[^](#cite_ref-13)** ["37signals is now Basecamp!"](https://37signals.com/). *37signals.com*. [Archived](https://web.archive.org/web/20190509115556/http://37signals.com/) from the original on May 9, 2019. Retrieved May 8, 2019.

1. **[^](#cite_ref-14)** ["Highrise"](https://highrisehq.com/). *highrisehq.com*. [Archived](https://web.archive.org/web/20190506074823/https://highrisehq.com/) from the original on May 6, 2019. Retrieved May 8, 2019.

1. **[^](#cite_ref-15)** Roberts, Jeff John (September 4, 2019). ["Google Trolled by Small Business Over 'Shakedown' Search Ads"](https://fortune.com/2019/09/04/google-trolled-search-ads). *[Fortune](/source/Fortune_(magazine))*. [Archived](https://web.archive.org/web/20190904200842/https://fortune.com/2019/09/04/google-trolled-search-ads/) from the original on September 4, 2019. Retrieved September 5, 2019.

1. **[^](#cite_ref-16)** ["App makers band together to fight for App Store changes with new 'Coalition for App Fairness'"](https://techcrunch.com/2020/09/24/app-makers-band-together-to-fight-for-app-store-changes-with-new-coalition-for-app-fairness/). *TechCrunch*. September 24, 2020. [Archived](https://web.archive.org/web/20210322200556/http://techcrunch.com/2020/09/24/app-makers-band-together-to-fight-for-app-store-changes-with-new-coalition-for-app-fairness/) from the original on March 22, 2021. Retrieved September 25, 2020.

1. **[^](#cite_ref-17)** Newton, Casey (April 27, 2021). ["🚨 What really happened at Basecamp"](https://www.platformer.news/-what-really-happened-at-basecamp/). *platformer.news*. Many of the names were of American or European origin. But others were Asian, or African, and eventually the list — titled "Best Names Ever" — began to make people uncomfortable.

1. **[^](#cite_ref-18)** Newton, Casey (May 3, 2021). ["Inside the all-hands meeting that led to a third of Basecamp employees quitting"](https://www.theverge.com/2021/5/3/22418208/basecamp-all-hands-meeting-employee-resignations-buyouts-implosion). *[The Verge](/source/The_Verge)*. [Archived](https://web.archive.org/web/20220222011331/https://www.theverge.com/2021/5/3/22418208/basecamp-all-hands-meeting-employee-resignations-buyouts-implosion) from the original on February 22, 2022. Retrieved February 22, 2022.

1. ^ [***a***](#cite_ref-nyt_19-0) [***b***](#cite_ref-nyt_19-1) Kessler, Sarah (April 30, 2021). ["A third of Basecamp's workers resign after a ban on talking politics"](https://www.nytimes.com/2021/04/30/technology/basecamp-politics-ban-resignations.html). *The New York Times*. [Archived](https://web.archive.org/web/20210430234009/https://www.nytimes.com/2021/04/30/technology/basecamp-politics-ban-resignations.html) from the original on April 30, 2021. Retrieved May 1, 2021.

1. **[^](#cite_ref-20)** Lyons, Kim (April 30, 2021). ["Basecamp implodes as employees flee company, including senior staff"](https://www.theverge.com/2021/4/30/22412714/basecamp-employees-memo-policy-hansson-fried-controversy). *The Verge*. [Archived](https://web.archive.org/web/20240629022248/https://www.theverge.com/2021/4/30/22412714/basecamp-employees-memo-policy-hansson-fried-controversy) from the original on June 29, 2024. Retrieved April 30, 2021.

1. ^ [***a***](#cite_ref-:0_21-0) [***b***](#cite_ref-:0_21-1) McManus, Sean (June 28, 2024). ["Are rainy days ahead for cloud computing?"](https://www.bbc.com/news/articles/cd114lllyp6o). *[BBC News](/source/BBC_News)*. [Archived](https://web.archive.org/web/20240628202509/https://www.bbc.com/news/articles/cd114lllyp6o) from the original on June 28, 2024. Retrieved June 29, 2024.

1. **[^](#cite_ref-22)** ["De-cloud and de-k8s – bringing our apps back home | Hacker News"](https://web.archive.org/web/20241114150102/https://news.ycombinator.com/item?id=35263285). *news.ycombinator.com*. Archived from [the original](https://news.ycombinator.com/item?id=35263285) on November 14, 2024. Retrieved September 16, 2025.

1. **[^](#cite_ref-23)** Sharwood, Simon (September 18, 2023). ["37 Signals says cloud repatriation plan has already saved it $1 million"](https://www.theregister.com/2023/09/18/37_signals_cloud_repatriation_savings/). *[The Register](/source/The_Register)*. [Archived](https://web.archive.org/web/20240307072256/https://www.theregister.com/2023/09/18/37_signals_cloud_repatriation_savings/) from the original on March 7, 2024. Retrieved June 29, 2024.

1. **[^](#cite_ref-24)** Empson, Rip (February 8, 2013). ["After 8 Years On The Web, Project Management Platform Basecamp Finally Launches An "Official" iOS App"](https://techcrunch.com/2013/02/08/after-8-years-on-the-web-project-management-platform-basecamp-finally-launches-an-official-ios-app/). *TechCrunch*. [Archived](https://web.archive.org/web/20160919153201/https://techcrunch.com/2013/02/08/after-8-years-on-the-web-project-management-platform-basecamp-finally-launches-an-official-ios-app/) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-25)** Hendershot, Steve (March 31, 2012). ["37Signals vaults from base camp to summit"](http://www.chicagobusiness.com/article/20120331/ISSUE01/303319965/37signals-vaults-from-base-camp-to-summit). *Crain's Chicago Business*. [Archived](https://web.archive.org/web/20120608202340/http://www.chicagobusiness.com/article/20120331/ISSUE01/303319965/37signals-vaults-from-base-camp-to-summit) from the original on June 8, 2012. Retrieved September 20, 2016.

1. **[^](#cite_ref-change_26-0)** Hempel, Jessi (November 4, 2015). ["Basecamp 3 Will Change the Way You Think About Work—Again"](https://www.wired.com/2015/11/basecamp-3-will-change-the-way-you-think-about-workagain/). *Wired*. [Archived](https://web.archive.org/web/20160919153106/https://www.wired.com/2015/11/basecamp-3-will-change-the-way-you-think-about-workagain/) from the original on September 19, 2016. Retrieved September 19, 2016.

1. **[^](#cite_ref-27)** Fried, Jason. ["A note about Campfire"](https://basecamp.com/retired/campfire). *basecamp.com*. Retrieved April 21, 2024.{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web)}}: CS1 maint: deprecated archival service ([link](https://en.wikipedia.org/wiki/Category:CS1_maint:_deprecated_archival_service))

1. **[^](#cite_ref-28)** ["Campfire is now for sale"](https://world.hey.com/dhh/campfire-is-now-for-sale-51a19fc9). *world.hey.com*. [Archived](https://web.archive.org/web/20240201185930/https://world.hey.com/dhh/campfire-is-now-for-sale-51a19fc9) from the original on February 1, 2024. Retrieved February 1, 2024.

1. **[^](#cite_ref-29)** ["Campfire is opensource"](https://github.com/basecamp/once-campfire/commits/main/MIT-LICENSE). *[GitHub](/source/GitHub)*. Retrieved September 5, 2025.

1. **[^](#cite_ref-30)** ["37Signals Launches HighRise Contact Manager"](https://techcrunch.com/2007/03/20/37signals-highrises-simple-crm/). *TechCrunch*. March 21, 2006. [Archived](https://web.archive.org/web/20210816031321/https://techcrunch.com/2007/03/20/37signals-highrises-simple-crm/) from the original on August 16, 2021. Retrieved August 16, 2021.

1. **[^](#cite_ref-31)** Heinemeier Hansson, David (April 5, 2018). ["Highrise is back with Basecamp"](https://m.signalvnoise.com/highrise-is-back-with-basecamp/). *SignalVsNoise*. [Archived](https://web.archive.org/web/20210816031323/https://m.signalvnoise.com/highrise-is-back-with-basecamp/) from the original on August 16, 2021. Retrieved August 16, 2021.

1. **[^](#cite_ref-32)** Fried, Jason (October 5, 2018). ["About the future of Highrise"](https://highrisehq.com/future-of-highrise/). *HighriseHQ*. [Archived](https://web.archive.org/web/20210816031324/https://highrisehq.com/future-of-highrise/) from the original on August 16, 2021. Retrieved August 16, 2021.

1. **[^](#cite_ref-33)** Kastrenakes, Jacob (June 16, 2020). ["Hey.com exec says Apple is acting like 'gangsters,' rejecting App Store updates and demanding cut of sales"](https://www.theverge.com/2020/6/16/21293419/hey-apple-rejection-ios-app-store-dhh-gangsters-antitrust). *The Verge*. [Archived](https://web.archive.org/web/20200617001215/https://www.theverge.com/2020/6/16/21293419/hey-apple-rejection-ios-app-store-dhh-gangsters-antitrust) from the original on June 17, 2020. Retrieved June 17, 2020.

1. **[^](#cite_ref-34)** Mims, Christopher (March 5, 2013). ["Jason Fried's next project, "Remote," is a book-length refutation of Yahoo's ban on telecommuting"](http://qz.com/59434/remote-jason-frieds-next-book-is-a-refutation-of-everything-marissa-mayer-has-said-about-remote-workers/). *Quartz*. [Archived](https://web.archive.org/web/20160923071916/http://qz.com/59434/remote-jason-frieds-next-book-is-a-refutation-of-everything-marissa-mayer-has-said-about-remote-workers/) from the original on September 23, 2016. Retrieved September 20, 2016.

1. **[^](#cite_ref-35)** Fried, Jason; Heinemeier Hansson, David (2010). *Rework*. [Crown Publishing Group](/source/Crown_Publishing_Group). [ISBN](/source/ISBN_(identifier)) [9780307463760](https://en.wikipedia.org/wiki/Special:BookSources/9780307463760).

1. **[^](#cite_ref-36)** Fried, Jason; Heinemeier Hansson, David (2013). *Remote: Office Not Required*. [Crown Publishing Group](/source/Crown_Publishing_Group). [ISBN](/source/ISBN_(identifier)) [9780804137515](https://en.wikipedia.org/wiki/Special:BookSources/9780804137515).

1. **[^](#cite_ref-37)** Silverman, Rachel Emma (August 6, 2013). ["Some Tech Firms Ask: Who Needs Managers?"](https://www.wsj.com/articles/SB10001424127887323420604578652051466314748). *Wall Street Journal*. [Archived](https://web.archive.org/web/20160919232850/http://www.wsj.com/articles/SB10001424127887323420604578652051466314748) from the original on September 19, 2016. Retrieved September 19, 2016.

## External links

Wikibooks has a book on the topic of: ***[Ruby on Rails](https://en.wikibooks.org/wiki/Ruby_on_Rails)***

- [Official website](https://37signals.com)

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