How many companies implement Open Source?

Based on our data, 102,475 companies implement Open Source. This number is updated daily as we discover new companies through job posting analysis.

What types of companies implement Open Source?

Open Source is relevant across multiple industries including Financial Services, Software Development, IT Services and IT Consulting. Companies range from startups to enterprises with 10,000+ employees.

How does TheirStack track companies related to Open Source?

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions Open Source in their job descriptions, requirements, or responsibilities, we identify them as related to Open Source and add them to our database.

How can I get the full list of companies that implement Open Source?

You can access the complete list of 102,475 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

How often is the company data updated?

Our database is refreshed daily. We continuously monitor job postings to detect new companies implementing Open Source and update existing records.

Companies implementing Open Source

Open source refers to software whose original source code is publicly accessible, allowing anyone to modify, redistribute, and use it freely.

102,475

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List of companies that implement Open Source

This is sourced from job postings — companies only hire for what they actively use or plan to adopt · how we source this →

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Company	Country	Industry	Employees	Revenue	Technologies
Capital One	United States	Financial Services	61k		Open Source
Canonical	United Kingdom	Software Development	2.1k	$126M	Open Source
Red Hat	United States	Software Development	20k	$3.4B	Open Source
IBM	United States	IT Services and IT Consulting	345k	$61B	Open Source
NVIDIA	United States	Computer Hardware Manufacturing	53k	$27B	Open Source
EY	United Kingdom	Professional Services	412k	$45B	Open Source
Booz Allen Hamilton	United States	IT Services and IT Consulting	40k	$8.1B	Open Source
Grafana Labs	United States	Software Development	1.9k	$300M	Open Source
Elastic	United States	Software Development	5.2k	$1B	Open Source
Microsoft	United States	Software Development	237k	$198B	Open Source

Capital One
Employees61kFinancial Services
Open SourceHigh confidence
Canonical
Employees2.1kRevenue$126MSoftware Development
Open SourceHigh confidence
Red Hat
Employees20kRevenue$3.4BSoftware Development
Open SourceHigh confidence
IBM
Employees345kRevenue$61BIT Services and IT Consulting
Open SourceHigh confidence
NVIDIA
Employees53kRevenue$27BComputer Hardware Manufacturing
Open SourceHigh confidence
EY
Employees412kRevenue$45BProfessional Services
Open SourceHigh confidence
Booz Allen Hamilton
Employees40kRevenue$8.1BIT Services and IT Consulting
Open SourceHigh confidence
Grafana Labs
Employees1.9kRevenue$300MSoftware Development
Open SourceHigh confidence
Elastic
Employees5.2kRevenue$1BSoftware Development
Open SourceHigh confidence
Microsoft
Employees237kRevenue$198BSoftware Development
Open SourceHigh confidence

Showing 10 of 102,475 results

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Showing top companies out of 102,475 that implement Open Source. Get the full list on TheirStack.

Related Software Engineering buying intents (96)
Pull Request695,320
User Interface (UI)373,218
Continuous Integration333,046
CI/CD295,097
Development Operations (Devops)271,351
Source Code Management256,625
Version Control251,381
Revision Management247,763
Root Cause Analysis (RCA)198,355
System Configuration (SC)175,335
Software Development Lifecycle147,659
Access Control137,058
Automation Testing132,875
Systems Development Life Cycle (SDLC)119,492
Programming Style Guide100,530
Model–View–Controller (MVC)90,741
Application Performance83,575
Firmware68,975
Configuration Management66,877
Software Design65,825
Knowledge Management65,445
Source Code Control59,720
Low-Code46,208
Site Reliability Engineering (SRE)45,931
Software Development Kit45,765
Error Handling44,988
Software Configuration Management43,744
Patch Management43,157
Quality Engineering42,257
Service Oriented Architecture (SOA)40,127
Software Binaries39,621
Event-Driven Architecture (EDA)39,445
Continuous Delivery38,192
Software Components35,262
Over-the-Air (OTA)34,902
Code Refactoring34,356
Continuous Deployment31,653
Mobile App Development31,401
Developer Experience30,331
Unified Modeling Language (UML)29,197
Software Deployment29,046
Web Application Development28,908
Agile Management24,535
Graphical User Interface (GUI)23,756
Interdisciplinary Collaboration18,809
Serverless Architecture14,717
Source Code Analysis13,906
Application Delivery13,598
Performance Engineering13,088
Log Files9,420
Serialization7,996
Error Budget7,837
Syslog7,411
Attribute-Based Access Control (ABAC)6,720
Application Migration6,580
Configuration Files5,837
Multitenancy5,795
Cross-Platform Development5,775
Application Release Automation5,757
Custom Software Development5,630
Chaos Engineering5,232
Software Bill of Materials (SBOMs)5,091
Agile Testing4,850
Build Management4,609
Scrum of Scrums3,753
Integrated Engineering3,575
In-Memory Data Grid (IMDG)3,139
Configuration Options2,974
Automated Engineering2,805
Salesforce DevOps2,667
Test Parameterization2,368
Software of Unknown Provenance (SOUP Software)2,200
Code Signing2,143
Password Vault1,672
Software Migration1,439
Open Platforms1,283
Test Orchestration1,087
Canary Mode1,012
Software-Defined Infrastructure893
Composable Commerce887
CAP Theorem700
Composable Technology696
Brownfield Development486
Automated Rollouts484
SHA-256 (Secure Hash Algorithm)478
Sparkplug455
Container Monitoring351
Code Search259
Emulator Testing164
Codeless Test Automation87
AD Delegation59
Single Tenancy49
Closed Platforms23
Software Widget5
No-Code Publishing4
Storm Spout0

Frequently asked questions

Companies implementing Open Source

List of companies that implement Open Source

What is Open Source?

What is Open Source?

How many companies implement Open Source?

How many companies implement Open Source?

What types of companies implement Open Source?

What types of companies implement Open Source?

How does TheirStack track companies related to Open Source?

How does TheirStack track companies related to Open Source?

How can I get the full list of companies that implement Open Source?

How can I get the full list of companies that implement Open Source?

How often is the company data updated?

How often is the company data updated?