| # | 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 |
Virtusavirtusa.com
Digital engineering and technology services provider for Forbes Global 2000 companies worldwide, focusing on innovative solutions and impactful results through an "Engineering First" approach |
18,045 |
| 3 |
athenahealthathenahealth.com
The company strives to simplify healthcare with innovative technology for electronic health records, revenue cycle management, and patient engagement solutions |
8,956 |
| 4 |
Rocket Softwarerocketsoftware.com
Partner for organizations transforming IT infrastructure, applications, and data from core systems to cloud with global support and innovation. |
4,385 |
| 5 |
Quantiphiquantiphi.com
An AI-first digital engineering company that solves complex business problems with industry experience, cloud, data engineering, and cutting-edge AI research |
4,105 |
| 6 |
MEDITECHehr.meditech.com
Healthcare organization empowering digital transformation with an intuitive and interoperable EHR system, cloud-based solutions, and personalized mobile tools to enhance efficiency and outcomes |
3,702 |
| 7 |
Travelporttravelport.com
Connecting travel buyers and sellers globally, powering AI-driven travel commerce and delivering exceptional travel experiences across 160+ countries. |
3,643 |
| 8 |
Sapientlinkedin.com
Global digital business transformation partner formed from a merger of legendary brands in 2019, previously known by a different name Join our LinkedIn community! |
3,549 |
| 9 | 2,532 | |
| 10 |
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 |
| 11 |
GyanSys Inc.gyansys.com
Leading global system integrator supporting enterprise customers with solutions implementations, managed services, and data analytics across SAP, Salesforce, and Microsoft platforms. |
1,992 |
| 12 | 1,916 | |
| 13 | 1,775 | |
| 14 |
OASISoasis-open.org
OASIS is a global standards body that offers a platform for developing and standardizing a wide range of technologies and initiatives |
1,421 |
| 15 |
Trigent Software Inctrigent.com
provides offshore software development, product engineering, mobile apps, cloud, SaaS, system integration, testing, and technical support services globally |
1,409 |
| 16 |
Apps Associatesappsassociates.com
Enterprise application services leader specializing in digital transformation initiatives, providing strategic counsel, system integration, and services to solve complex business challenges |
1,399 |
| 17 |
BG
An established and experienced entity with a long history and track record of service, now likely undergoing a transformation or rebranding |
1,398 |
| 18 |
MRCCmrccgroup.com
A constantly evolving IT services company offering expertise in IT staffing, talent transformation, eLearning, application development, QA, EDM, and Oracle solutions to empower businesses |
1,190 |
| 19 | 1,115 | |
| 20 |
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 |
| 21 |
Eaton Corporationeaton.com
Designs and manufactures data center airflow management solutions, monitoring consoles, furniture, and workbench systems for high-tech environments Trusted by major tech companies and government agencies |
917 |
| 22 |
Surveysurvey.com
Retail merchandising service utilizing data, mobile technology, and field reps to impact product placement and performance in stores nationwide |
888 |
| 23 |
Tanisha Systems, Inctanishasystems.com
A leading provider of Custom Application Development and IT Services globally, focusing on client-centric engagement model for optimal results and satisfaction |
838 |
| 24 |
Worldwide TechServiceswwts.com
Global leader in technology services with over 3,000 technicians servicing millions of devices annually in 50+ countries for a wide range of clients |
837 |
| 25 |
Galaxy Weblinks Incgalaxyweblinks.com
A global technology consulting firm providing end-to-end services in product engineering, UX design, mobile/web development, cloud security, QA, ERP, and marketing for enterprises worldwide |
826 |
| 26 |
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 |
| 27 |
CapeStartcapestart.com
CapeStart provides AI innovation scaling services through data annotation, machine learning, and software development for various industries worldwide |
795 |
| 28 |
TLX Mobility - A Techlogix Companytlxmobility.com
TLX Mobility develops cloud-based mobility solutions to enhance field staff productivity, customer service, and operational efficiency for enterprises |
736 |
| 29 |
Techlogixtechlogix.com
An innovative global IT services company offering consultancy and solutions to facilitate enterprise transformation through the integration of people, processes, and technology |
729 |
| 30 |
Nasuninasuni.com
The company provides a hybrid cloud storage solution with scalability, security, and edge performance, consolidating NAS and backup while enhancing security and user productivity |
696 |
| 31 |
Trax Retailtraxretail.com
AI-powered platform delivering real-time retail data, shelf monitoring, analytics, and shopper engagement to global CPGs and retailers. |
616 |
| 32 |
Hengtianhorizon8.com
A leading tech company in China with over 2,500 professionals, offering software development, testing, quality assurance, IT managed services, and more to global clients |
600 |
| 33 |
Jenzabarjenzabar.com
Higher education technology solutions provider with tailored software and services to optimize performance across campus and student lifecycle globally |
564 |
| 34 |
Arcadiaarcadia.io
Transforming healthcare through data insights and actions Providing data platform, analytics tools, and services to improve patient outcomes and optimize operations |
542 |
| 35 |
Infinidatinfinidat.com
Provider of high-performance primary and secondary storage solutions with guaranteed availability, cyber resilience, and low total cost of ownership |
511 |
| 36 |
Quantoriquantori.com
Quantori accelerates drug discovery and patient outcomes through cutting-edge data engineering, machine learning, cloud expertise, and healthcare data optimization services |
473 |
| 37 |
Spencer Technologiesspencertech.com
A leading provider of end-to-end IT lifecycle solutions for various retail corporations worldwide, setting the standard for experience and reliability |
445 |
| 38 |
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 |
| 39 |
Collaborate Solutions, Inccollaboratesolutions.com
This company offers software development and IT consulting services, emphasizing high-caliber employees, top-quality service, and national reach, with offices in Shrewsbury, MA and Hyderabad, India |
425 |
| 40 | 420 | |
| 41 |
codemantracodemantra.com
Global leader providing AI-driven Intelligent Document Processing platform for automating digital document accessibility, extraction, classification, and transformation services across various industries |
420 |
| 42 |
Evosysevosysglobal.com
A global leader in Oracle implementation services, offering Oracle Cloud solutions to drive business transformation and efficiency with a team of 2000+ experts |
416 |
| 43 |
AMC Bridge, Inc.amcbridge.com
Global software development consultancy enabling digital transformation for engineering, manufacturing, and construction industries by creating custom solutions and integrating advanced technologies to solve critical business needs |
413 |
| 44 |
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 |
| 45 |
BackOffice Associatessyniti.com
A global leader in enterprise data management, solving complex challenges with data expertise, intelligent software, and AI technologies for superior business outcomes |
397 |
| 46 | 385 | |
| 47 |
Aurigaauriga.com
A software R&D and IT outsourcing services provider with 30 years of experience offering software engineering, testing, and consultancy services to various industries |
368 |
| 48 |
SimbirSoft Companysimbirsoft.com
A global IT outsourcing provider offering custom software development services and technical solutions for various industries, with over 900 projects completed |
352 |
| 49 |
Vassar Labsvassarlabs.com
Development of technology-driven solutions for enterprise digital transformation, climate change, water management, agriculture, land use, and disaster risk assessment. |
345 |
| 50 |
Bureau Veritas Cybersecuritycybersecurity.bureauveritas.com
Expert cybersecurity partner for organizations. Identification of risks, defense strengthening, and compliance with cybersecurity standards and regulations. Global presence. |
341 |
| 51 |
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 |
| 52 |
Verscendcotiviti.com
A solutions and analytics company reshaping healthcare economics, helping clients discover new value opportunities through innovative technology and data analysis |
318 |
| 53 |
Mobiquity Inc.mobiquity.com
A digital enabler partnering with leading brands to design, build, market, and maintain innovative digital products and services for clients |
276 |
| 54 |
Waterfield Techwaterfieldtech.com
Waterfield Tech provides tailored customer engagement solutions with Applied AI from leading providers, resulting in happier customers, enhanced insights, and lower costs globally |
256 |
| 55 |
AMC Bridge Careercareer.amcbridge.com
Global software consultancy enabling digital transformation for engineering, manufacturing, and construction industries by creating custom solutions to connect applications and unlock innovation with cutting-edge technologies |
242 |
| 56 | 241 | |
| 57 |
MDeverywhere Inc.mdeverywhere.com
A comprehensive solution provider in revenue cycle management, EMR, and credentialing services for physicians, ensuring compliance and efficiency for clients nationwide |
240 |
| 58 |
J2 Interactivej2interactive.com
Award-winning healthcare IT consulting firm specializing in customized solutions for health systems, labs, research institutions, and medical device companies, with a focus on improving patient outcomes |
235 |
| 59 |
Aprioritapriorit.com
Global software product engineering firm offering services in kernel development, cybersecurity, AI, mobile development, and more to Fortune 500 clients worldwide |
233 |
| 60 |
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 |
| 61 |
Aberdeen Strategy & Researchaberdeen.com
A division of a larger company specializing in independent market research for technology, customer management, and business operations to inform strategies |
208 |
| 62 |
Ventois, Inc.ventois.com
This company is a strategic IT staffing partner, providing personalized solutions for clients and career guidance for IT professionals |
202 |
| 63 |
Intersections Inc.aura.com
A leading provider of digital threat protection services, offering identity risk management and privacy protection through innovative software and data monitoring solutions |
196 |
| 64 |
Aeturnumaeturnum.com
Global software development firm specializing in early stage technology products Expertise in Agile methodologies and modular software platform accelerates product launch by 40-50% |
190 |
| 65 |
oneZero Financial Systemsonezero.com
Technology company developing trading solutions for financial institutions globally with high reliability, scalability, and performance, handling billions in transactions daily |
189 |
| 66 |
Strategic Solutions Group (SSG)ssg-llc.com
An established IT and management consulting firm specializing in technology solutions for the public sector and healthcare industry, improving quality of life through innovative tools |
185 |
| 67 |
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 |
| 68 |
Charles Hudson Technology Solutions Incchtsinc.com
Specializing in experience assurance in the digital space, we lower quality costs for customers, enhance end user experience, and improve ROI |
183 |
| 69 |
ClearBridge Technology Groupclearbridgetech.com
A national technology services organization specializing in professional services support, project management, and business analyses across various industries and technologies |
183 |
| 70 |
Boston Technology Corporationboston-technology.com
Leading IT services company enabling digital transformation through AI-powered software development, cloud infrastructure modernization, healthcare solutions, and strategic tech partnerships for successful business outcomes |
180 |
| 71 |
CloudWave, Healthcare IT Solutionsgocloudwave.com
A healthcare data security expert providing cloud, cybersecurity, and managed services to healthcare organizations, supporting multiple EHR, clinical, and enterprise applications |
179 |
| 72 |
Nextuplenextuple.com
Nextuple Inc specializes in leveling the playing field for Omnichannel retailers by utilizing microservices to enhance fulfillment experiences and accelerate time-to-value |
171 |
| 73 |
PlumChoice
Acquired in 2018 by a corporation offering protection plans, Plumchoice now operates under Allstate Protection Plans/SquareTrade |
168 |
| 74 |
CyberGrants is now Bonterrabonterratech.com
Bonterra is a technology company that provides a cohesive lineup of platforms for social impact, including CyberGrants, EveryAction, GiveGab, and more |
167 |
| 75 |
QWERTYqwerty.global
The company creates custom web/mobile solutions for innovative brands, offering software development, UX/UI design, prototyping, digital transformation, and remote team members |
167 |
| 76 | 167 | |
| 77 |
tCognitiontcognition.com
Consulting and IT services, specializing in deploying autonomous, task-driven AI agents for enterprise use cases across various sectors and offering global support. |
167 |
| 78 |
Dextrysdextrys.com
Provider of software development, maintenance, and testing services to global tech companies, focusing on timely project delivery, cost reduction, and client success |
165 |
| 79 |
infosenseglobal
Infosenseglobal provides advanced technology solutions, specializing in Oracle applications and web development for businesses worldwide Their services include IT outsourcing, application integration, and research & development |
165 |
| 80 |
Quality Matrix Groupquality-matrix.com
Cutting-edge digital solutions provider offering quality assurance, DevOps, Salesforce integration, RPA, and data services to enhance business efficiency and agility globally |
157 |
| 81 |
bpm'onlinebpmonline.com
Global leader in business process automation and CRM software, accelerating sales, marketing, service, and operations for customers and partners worldwide Highly recognized by industry analysts |
153 |
| 82 | 153 | |
| 83 |
pdfFillerpdffiller.com
An online document management platform offering editing, cloud storage, and e-signature services to streamline workflows for businesses worldwide |
151 |
| 84 |
Findability Sciencesfindability.ai
Findability Sciences specializes in AI solutions for traditional enterprises, offering advanced forecasting and business process co-pilots through their proprietary platform |
151 |
| 85 |
SmartSense by Digismartsense.co
SmartSense delivers IoT solutions for food safety, facilities monitoring, and supply chain visibility, providing actionable insight through wireless sensors and AI |
147 |
| 86 |
Edgewater Consultingedgewater-consulting.com
This company provides change management consulting and technical services for transformational projects with industry expertise in healthcare, manufacturing, insurance, and hospitality |
147 |
| 87 |
Brickclaybrickclay.com
A technology solutions provider specializing in data platforms, analytics, cloud, and DevOps, driving business growth with expert consultants and industry experience |
137 |
| 88 |
Versetalversetalinfo.com
Revolutionizing Managed Service Providers with global expertise and innovative solutions in Security, Data, Applications, and Infrastructure/Cloud for organizations worldwide |
115 |
| 89 |
BNT SOFTbnt-soft.com
Specialized in innovative solutions for banks, retailers, and financial institutes using emerging technologies to improve business processes and profitability |
114 |
| 90 |
Vassar Digitalvassardigital.ai
Develops generative AI and digital transformation applications, empowering businesses with low-code/no-code platforms for connected worker/customer ecosystems, enhancing customer experience and optimizing resource utilization. |
108 |
| 91 |
Winslow Technology Groupwinslowtg.com
Provider of IT Solutions, Managed Services, and Cybersecurity Services helping clients innovate through data center, cybersecurity, networking, and cloud infrastructure solutions Serving various industries |
99 |
| 92 |
INNO4 LLCservicepoint.com
A nationwide technology services company focusing on data infrastructure, cybersecurity, enterprise mobility, and audio visual solutions, with a commitment to innovation and exceeding customer expectations |
79 |
| 93 | 79 | |
| 94 |
Bluesensesmartbeauty.bluesense.ai
A leading AI company specializing in computer vision, machine learning, and AI technology to create innovative solutions and offer top-notch consultancy services |
62 |
| 95 |
The Dotcom Teamdotcom-team.com
A global Technology Consulting & Staffing firm empowering science & technology talent, focused on client relationships, employee well-being, and digital transformation expertise |
61 |
| 96 |
HBOX Digitalhboxdigital.com
Global technology company offering customized software solutions, digital marketing services, and SaaS model to empower businesses through innovative and scalable solutions worldwide |
61 |
| 97 |
Focus Technology Solutionsfocustsi.com
Enterprise-level technology solutions provider offering personalized service, innovative IT solutions, managed services, and professional consulting in Data Center, Microsoft, Cloud, Networking, and Cyber Security |
47 |
| 98 |
Global Enterprise Technologies Corp. (GET Group NA)getgroupna.com
A leading provider of secure solutions for Identity, Credential, and Access Management operations, specializing in advanced ID card and passport personalization |
43 |
| 99 |
MainStreamTek Corporationmainstreamtek.com
A technology services firm specializing in digital engineering and modernization for banking, capital, and insurance markets worldwide Offices in multiple countries |
43 |
| 100 |
Urchin Systemsurchinsys.com
Global software company offering product design, development, and technology acceleration services, specializing in enterprise solutions and web/mobile app development with offshore support |
38 |
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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 Oct 24, 2026.
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- Financial services firms in Massachusetts 166
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- Venture capital and private equity firms in Massachusetts 141
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The same list elsewhere in United States
- IT Services and IT Consulting companies in the United States 5,237
- IT Services and IT Consulting companies in California 730
- IT Services and IT Consulting companies in Texas 665
- IT Services and IT Consulting companies in New York State 451
- IT Services and IT Consulting companies in Virginia 398
- IT Services and IT Consulting companies in New Jersey 366
- IT Services and IT Consulting companies in Florida 296
- IT Services and IT Consulting companies in Georgia 233
- IT Services and IT Consulting companies in Illinois 230
- IT Services and IT Consulting companies in Maryland 154
- IT Services and IT Consulting companies in Pennsylvania 134
- IT Services and IT Consulting companies in Washington State 118
- IT Services and IT Consulting companies in Ohio 109
- IT Services and IT Consulting companies in Michigan 102
- IT Services and IT Consulting companies in North Carolina 93
- IT Services and IT Consulting companies in Alabama 83
- IT Services and IT Consulting companies in Delaware 81
- IT Services and IT Consulting companies in New York 304
- IT Services and IT Consulting companies in Houston 112
- IT Services and IT Consulting companies in Atlanta 100
- IT Services and IT Consulting companies in San Francisco 96
- IT Services and IT Consulting companies in Austin 91
- IT Services and IT Consulting companies in Chicago 86
- IT Services and IT Consulting companies in Irving 77