These Massachusetts-based companies are primarily managed service providers and IT consulting firms, with a strong presence in software development and information technology. The list includes a mix of large established players and younger firms. Iron Mountain, with over 24,000 employees, specializes in storage and information management. Akamai Technologies, with over 10,000 employees, is a leader in internet infrastructure. Thrive offers AI, cybersecurity, and cloud solutions, while ECI provides technology solutions for the financial industry. NWN delivers secure cloud communications, and Acquia focuses on open-source digital experience platforms.
A notable pattern is the concentration of headquarters in Boston, indicating a central hub for these technology and IT service companies within Massachusetts. The companies range in size from under 500 to over 24,000 employees, suggesting a diverse ecosystem of managed service providers.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Iron Mountainironmountain.com
Global leader in storage and information management services, partnering with organizations worldwide to protect and unlock the value of their assets and data |
24,357 | |||
| 2 |
Akamai Technologiesakamai.com
A global leader in internet infrastructure, Akamai powers and protects online experiences for billions of users daily through innovative solutions |
10,647 | |||
| 3 | 2,532 | ||||
| 4 |
Thrivethrivenextgen.com
Empowering small and mid-market organizations to transform their technology into a strategic advantage, offering AI, cybersecurity, cloud, and MSP/MSSP solutions for innovation and growth. |
2,059 | |||
| 5 | 1,916 | ||||
| 6 | 1,775 | ||||
| 7 |
Acquiaacquia.com
Open source Drupal based digital experience platform enabling innovators to manage customer data and content for increased engagement, conversion, and revenue. |
1,098 | |||
| 8 |
Navisitenavisite.com
Digital transformation partner providing specialized teams, industry solutions, and advisory services for modernizing businesses with cloud, application, data management, and cybersecurity solutions |
952 | |||
| 9 |
Q3 Technologiesq3tech.com
Global provider of custom IT solutions including software development, mobile apps, data analytics, AI, cloud services, cyber security, and UI/UX design for diverse industries |
797 | |||
| 10 |
Nasuninasuni.com
Unified file data platform helping enterprises handle unstructured data, offering business resiliency, IT efficiency, and infrastructure cost reduction. |
730 | |||
| 11 |
Wasabi Technologieswasabi.com
A data storage company providing simple, affordable, fast, and secure cloud storage solutions for a wide range of data types worldwide |
589 | |||
| 12 |
Stratus Technologiespenguinsolutions.com
Stratus provides Edge Computing solutions for businesses seeking predictable performance, minimal risk, and continuous availability of critical applications |
519 | |||
| 13 | 483 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 14 |
Farm Credit Financial Partners, Inc.financialpartners.com
A customer-owned service organization supporting agricultural credit associations with innovative technology products and services to improve lending for American agriculture |
443 | |||
| 15 | 420 | ||||
| 16 |
NorthBay Solutionsnorthbaysolutions.com
Transforming businesses by unlocking data value in the cloud for agility and innovation with services including migration, development, big data, AI, and staff augmentation |
400 | |||
| 17 |
ConResconres.com
A private Women-Owned IT solutions provider offers expertise in cloud, data center, cybersecurity, collaboration, and digital infrastructure to help organizations optimize their IT systems |
326 | |||
| 18 | 300 | ||||
| 19 |
Focus Technologyfocustsi.com
Enterprise-level technology solutions provider addressing business challenges with customized solutions, maximizing value and ROI through experienced solutions architects and strategic partnerships Headquarters in Boston, MA |
225 | |||
| 20 |
Maxima Consultingmaximaconsulting.com
IT solutions provider specializing in cybersecurity, infrastructure, digital transformation, and quality assurance Trusted global advisors delivering future-proof technology to various industries |
184 | |||
| 21 |
Versetalversetalinfo.com
Revolutionizing Managed Service Providers with global expertise and innovative solutions in Security, Data, Applications, and Infrastructure/Cloud for organizations worldwide |
115 | |||
| 22 |
Sentri
A leading provider of IT services, consulting, and solutions integration Specializing in communication & collaboration tools, managed services, and customized technology solutions |
27 | |||
| 23 |
Proinfproinf.com
A leading cybersecurity and professional services provider offering managed IT services, infrastructure engineering, security services, and application modernization with certified professionals |
16 | |||
| 24 |
Datasmith Network Solutionsdatasmithnetworks.com
An IT services provider that aligns technology with business priorities, ensuring secure networks, efficiency, and growth readiness through managed IT, security, cloud services, and more |
13 | |||
| 25 |
Synivatesynivate.com
Providing customized IT support and managed services to optimize business technology, streamline processes, and enhance operational efficiency. |
8 | |||
| 26 |
Granite Block Global Data Center Incgranitecolocation.com
A leading provider of application hosting, colocation, and disaster recovery services, with a focus on high availability for financial, healthcare, and technology industries worldwide |
3 | |||
| 27 |
Quantum Sol LLC.qsolholdings.com
Global technology holdings company based in Boston Specializing in funding and growing technology-focused organizations in various areas including IT, AI, and digital marketing |
2 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
More company lists in Massachusetts
- The largest companies in Massachusetts 3,419
- Multinational companies in Massachusetts 637
- Companies with in-house R&D in Massachusetts 396
- SaaS companies in Massachusetts 339
- Education providers in Massachusetts 313
- Software Development companies in Massachusetts 273
- Manufacturers in Massachusetts 269
- Professional services firms in Massachusetts 249
- AI companies in Massachusetts 243
- Financial services firms in Massachusetts 235
- Healthcare providers in Massachusetts 213
- Hospitals and Health Care companies in Massachusetts 197
- Hardware manufacturers in Massachusetts 196
- Subscription businesses in Massachusetts 183
- IT Services and IT Consulting companies in Massachusetts 176
- Retail chains in Massachusetts 168
- Critical infrastructure operators in Massachusetts 165
- Companies with a mobile app in Massachusetts 159
- Higher Education companies in Massachusetts 158
- Venture capital and private equity firms in Massachusetts 157
- IT services companies in Massachusetts 155
- Consulting firms in Massachusetts 153
- Financial Services companies in Massachusetts 153
- Pharmaceutical companies in Massachusetts 143
The same list elsewhere in United States
- Managed service providers in the United States 889
- Managed service providers in California 152
- Managed service providers in Texas 83
- Managed service providers in New York State 78
- Managed service providers in Florida 71
- Managed service providers in Georgia 42
- Managed service providers in New Jersey 36
- Managed service providers in Illinois 35
- Managed service providers in Virginia 35
- Managed service providers in Washington State 35
- Managed service providers in Colorado 31
- Managed service providers in Pennsylvania 26
- Managed service providers in New York 54
- Managed service providers in San Francisco 25