This selection of large multinational companies in Massachusetts shows a mix of sectors, including financial services, biotechnology, and consulting. Fidelity Investments provides diversified financial services, while Thermo Fisher Scientific specializes in biotechnology research. GE focuses on aviation and energy, and The TJX Companies, Inc. is a global off-price retailer. Boston Scientific develops medical technologies, and State Street offers comprehensive investment services. Many of these companies, such as Fidelity Investments (founded 1946) and State Street (founded 1792), have long histories.
The data reveals a strong concentration of headquarters in Boston, with several other significant companies located in nearby cities like Waltham, Framingham, and Marlborough. This indicates a geographic clustering of corporate activity within the state. The presence of both established corporations and institutions like Harvard University (founded 1636) highlights a diverse economic landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Thermo Fisher Scientificthermofisher.com
A global leader in science services, providing innovative technologies and pharmaceutical support to make the world healthier, cleaner, and safer |
100,256 | |||
| 2 | 99,488 | ||||
| 3 |
Fidelity Investmentsfidelity.com
Financial well-being through diversified market-leading services for individuals, families, employers, wealth management firms, and institutions using trillions in administered and discretionary assets. |
84,668 | |||
| 4 |
GE Vernovalinktr.ee
A purpose-built company focused on electrifying the planet and decarbonizing it through a diverse portfolio of energy businesses, ensuring reliable and sustainable energy |
70,646 | |||
| 5 |
The TJX Companies, Inc.jobs.tjx.com
Leading global off-price retailer offering apparel and home fashions through seven brands across nine countries, nearly 4,700 stores, and five e-commerce sites. |
57,100 | |||
| 6 |
Boston Scientificbostonscientific.com
Develops and provides innovative medical technologies including devices and therapies for various diseases, improving patient health and reducing healthcare costs worldwide. |
54,633 | |||
| 7 |
State Streetstatestreet.com
Global financial leader providing comprehensive investment services, institutional asset management, multi-asset trading, and digital solutions to enhance portfolio performance and decision making. |
46,913 | |||
| 8 |
Boston Consulting Group (BCG)bcg.com
A global management consulting firm that partners with organizations to tackle challenges, drive growth, and create positive societal impact through innovative solutions |
40,412 | |||
| 9 |
Liberty Mutual Insurancelibertymutualgroup.com
Global leader in property and casualty insurance dedicated to fostering career growth, social responsibility, sustainability, diversity, and innovative solutions for customers worldwide |
37,734 | |||
| 10 |
Harvard Universityharvard.edu
An institution dedicated to teaching, learning, and research, producing global leaders across disciplines since 1636 Maintains flagship social media channels |
34,940 | |||
| 11 |
Analog Devicesanalog.com
Global semiconductor company combining analog, digital, and software technologies to advance digitized factories, mobility, healthcare, and climate solutions. |
27,234 | |||
| 12 |
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 | |||
| 13 |
Publicis Sapientpublicissapient.com
A digital business transformation partner, specializing in strategy, product, experience, engineering, data, and delivering impactful solutions to global organizations |
24,251 | |||
| 14 |
Bain & Companybain.com
Global consultancy aiding ambitious change makers define the future, achieving extraordinary results, outperforming competition, redefining industries, and tackling urgent societal challenges. |
23,729 | |||
| 15 |
Charles River Laboratoriescriver.com
Guided by strong purpose, creating healthier lives, focusing on therapeutics for patients, animal care, planet well-being, and its passionate, skilled people. |
22,000 | |||
| 16 | 20,440 | ||||
| 17 |
Preplypreply.com
The company connects learners with online tutors worldwide, offering live language classes with AI tools and learning materials for progress and engagement |
18,061 | |||
| 18 |
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 | |||
| 19 |
Amazon Fulfillment Technologies & Roboticsamazon.jobs
The company partners people with intelligent robots to enhance order fulfillment accuracy, create new jobs worldwide, and improve customer experience |
17,911 | |||
| 20 |
Northeastern Universitynortheastern.edu
Global research university combining experiential learning with cooperative education, offering diverse programs and addressing health, security, and sustainability challenges worldwide. |
17,385 | |||
| 21 |
Bright Horizonsbrighthorizons.com
Provides on-site childcare, backup care, and education programs to support employees, enhance workplace culture, and develop critical skills. |
14,333 | |||
| 22 |
Keurig Dr Pepper Inc.keurigdrpepper.com
Leading North American beverage company with extensive portfolio including coffee, soft drinks, water, juice, and mixers, strong distribution network. |
13,948 | |||
| 23 |
Clean Harborscleanharbors.com
Provider of hazardous waste management, emergency spill response, industrial cleaning, recycling, and used oil re-refining services across North America. |
13,449 | |||
| 24 |
Wayfairaboutwayfair.com
Destination for all things home, offering expert customer service, tools for easy shopping, and wide selection to help create personalized spaces |
12,524 | |||
| 25 |
HubSpothubspot.com
It provides a comprehensive CRM platform with marketing, sales, and service tools, fostering employee growth and a flexible workplace culture. |
12,229 | |||
| 26 |
Waters Corporationwaters.com
A global leader in analytical instruments and software, pioneering innovations in chromatography, mass spectrometry, and thermal analysis for various sciences |
11,842 | |||
| 27 |
New Balancenewbalance.com
Designing and manufacturing high-quality athletic footwear and apparel with a focus on comfort, fit, innovation, and community support worldwide. |
11,624 | |||
| 28 |
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 | |||
| 29 |
Harvard Business Reviewhbr.org
Provides professionals rigorous insights, best practices to lead effectively, make positive impact, bridging academia and global enterprises. |
9,905 | |||
| 30 |
EG Americaeg-america.com
A rapidly growing convenience store retailer in the US, part of a global company, offering top-notch products and services nationwide |
9,343 | |||
| 31 |
Netcracker Technologynetcracker.com
It is a software company providing critical solutions for service providers, focusing on digital transformation and cloud opportunities worldwide. |
8,935 | |||
| 32 |
CDM Smithcdmsmith.com
This company provides comprehensive solutions in water, environment, transportation, energy, and facilities to worldwide public and private clients |
8,617 | |||
| 33 | 8,184 | ||||
| 34 |
Toastpos.toasttab.com
Toast empowers restaurants with cloud-based software and hardware to streamline operations, drive revenue, and enhance guest experience through POS, marketing, and HR solutions |
7,762 | |||
| 35 |
Biogenbiogen.com
Company pioneers innovative science, delivering new medicines to transform patients' lives, with a global presence and focus on superior treatment outcomes. |
7,724 | |||
| 36 |
Sensata Technologiessensata.com
Supplier of sensing, electrical protection, control, and power management solutions enhancing safety, efficiency, and comfort across multiple industries worldwide. |
7,634 | |||
| 37 | 7,373 | ||||
| 38 |
Hologic, Inc.hologic.com
Develops innovative medical products, especially for women's health, focusing on early detection and better outcomes across breast, skeletal, diagnostic, and GYN surgical solutions. |
6,921 | |||
| 39 |
Modernamodernatx.com
Pioneering mRNA technology for new medicines to improve patient lives by providing real-time instructions for protein production in cells |
6,906 | |||
| 40 |
Bose Corporationbose.com
Develops advanced audio technologies and products for home, automotive, portable, and public spaces, enhancing music listening experiences worldwide. |
6,699 | |||
| 41 |
Entegrisentegris.com
A global leader in advanced science-based solutions for technology challenges, driving innovation with artificial intelligence, augmented reality, and IoT technologies |
6,612 | |||
| 42 |
Vertex Pharmaceuticalsvrtx.com
Global biotechnology company focusing on creating medicines for serious and life-threatening diseases, with a pioneering history in treating cystic fibrosis |
6,382 | |||
| 43 |
Vistavistaprint.com
Global design and marketing partner for small businesses worldwide, providing full-service solutions for physical and digital presence to achieve success |
6,238 | |||
| 44 |
Teradyneteradyne.com
This company provides advanced test solutions for semiconductors, electronic systems, wireless devices, and robotics to improve productivity and lower costs for manufacturers worldwide |
6,210 | |||
| 45 |
Rich Products Corporationrichs.com
A family-owned food company providing a wide range of products for home, restaurant, and bakery use, focused on inspiring possibilities and helping food industry professionals succeed |
6,208 | |||
| 46 |
American Toweramericantower.com
Global provider of digital infrastructure supporting mobile and broadband networks, enabling connectivity, innovation, and bridging digital divides worldwide. |
6,111 | |||
| 47 |
Cultural Care Au Pairculturalcare.com
Connecting international au pairs with American families for childcare, cultural exchange, and enriching year-long experiences in the USA. |
6,091 | |||
| 48 |
Dynatracedynatrace.com
This company specializes in providing a platform that unifies observability, business, and security data with AI-driven analytics and automation to optimize cloud operations and ensure flawless digital experiences |
6,090 | |||
| 49 | 5,917 | ||||
| 50 |
Veolia | North Americaveolianorthamerica.com
Provides resource management solutions including water decontamination, toxic waste handling, fossil fuel alternatives, wastewater reuse, and battery recycling for cities and industries. |
5,812 | |||
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. | |||||
| 51 |
Tripadvisortripadvisor.com
A leading travel guidance platform with 1 billion reviews, offering deals on accommodations, experiences, and restaurants to help travelers plan their trips |
5,762 | |||
| 52 |
DraftKings Inc.careers.draftkings.com
The company is committed to creating popular games and betting experiences, leading the way in sports entertainment, innovation, and global collaboration |
5,760 | |||
| 53 |
Lionbridgelionbridge.com
This company specializes in translation and localization services in over 350 languages, connecting global brands with customers worldwide through cultural experiences |
5,583 | |||
| 54 |
Pegasystemspega.com
It provides a low-code platform for organizations to enhance agility, automate workflows, and address business challenges using AI technology. |
5,569 | |||
| 55 |
eClinicalWorkseclinicalworks.com
It provides Electronic Health Record and Practice Management solutions to medical professionals, enhancing care quality and reducing costs through technology. |
5,426 | |||
| 56 |
Insulet Corporationinsulet.com
Simplifying diabetes management for individuals with the Omnipod platform, offering tubeless, wearable insulin delivery and automated blood sugar control without injections or fingersticks globally. |
5,407 | |||
| 57 |
Alexion Pharmaceuticals, Inc.alexion.com
Development of innovative medicines targeting rare diseases, focusing on complement system biology, expanding global reach to serve patients worldwide. |
5,112 | |||
| 58 |
Xceedancexceedance.com
Provider of strategic operations support, technology, and data services for insurance organizations globally, enhancing efficiencies and optimizing business processes with expertise in underwriting, analytics, and more |
4,963 | |||
| 59 |
Brukerbruker.com
Development and provision of advanced analytical instrumentation and solutions for research, industrial production, quality assurance, and process reliability worldwide. |
4,824 | |||
| 60 | 4,581 | ||||
| 61 |
Conversecareers.converse.com
This company creates iconic street style sneakers like Chuck Taylor All Stars and One Stars that redefine sport, street, and creative culture |
4,522 | |||
| 62 |
C&W Servicescwservices.com
A leading provider of integrated facility services, focusing on driving down operating expenses, increasing efficiency, and creating a positive occupant experience through innovation and empowerment |
4,447 | |||
| 63 |
Rocket Softwarerocketsoftware.com
Partner for organizations transforming IT infrastructure, applications, and data from core systems to cloud with global support and innovation. |
4,385 | |||
| 64 |
Talbotsjobs.knitwellgroup.com
A timeless fashion brand founded on quality, service, and innovation, known for classic pieces and a commitment to customer satisfaction |
4,311 | |||
| 65 | 4,310 | ||||
| 66 |
L.E.K. Consultinglek.com
Global management consulting firm providing deep industry expertise and rigorous analysis to help business leaders improve performance and create greater shareholder returns. |
4,271 | |||
| 67 |
Harte Hankshartehanks.com
A global customer experience company specializing in personalized marketing, customer care services, and fulfillment solutions to create enduring connections |
4,267 | |||
| 68 |
Progress Softwareprogress.com
Helping businesses drive innovation and success with high-impact application products, deployment flexibility, and secure management solutions, trusted by enterprises and developers worldwide |
4,212 | |||
| 69 |
SharkNinjasharkninja.com
A global product design and technology company known for innovative 5-star rated lifestyle solutions in household product categories like Cleaning, Cooking, and Food Preparation |
4,199 | |||
| 70 |
Aquentaquent.com
Global work solutions company providing talent, technology, and services for businesses through recruiting, creative strategy, project management, and more |
4,071 | |||
| 71 |
Aspen Technologyaspentech.com
Global software leader enabling industries to meet demand sustainably by optimizing asset design, operation, and maintenance lifecycle for improved operational excellence |
4,065 | |||
| 72 |
Reebokreebok.com
It designs and creates fitness gear and experiences, aiming to inspire individuals to achieve their best physically, mentally, and socially. |
4,008 | |||
| 73 |
Goodwingoodwinlaw.com
Global law firm providing litigation, regulatory compliance, advisory services, and complex transactions for clients in diverse industries worldwide. |
3,975 | |||
| 74 |
School of Rockschoolofrock.com
Global leader in music education for kids and adults, offering professional musician-led lessons, group rehearsals, and live performances in over 300 locations worldwide |
3,971 | |||
| 75 |
Cabot Corporationcabotcorp.com
Global specialty chemical and performance materials company providing solutions to address current challenges and future customer needs worldwide. |
3,719 | |||
| 76 |
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 | |||
| 77 |
Berklee College of Musicberklee.edu
A leading college offering top-tier music education for students around the world |
3,696 | |||
| 78 |
Travelporttravelport.com
Connecting travel buyers and sellers globally, powering AI-driven travel commerce and delivering exceptional travel experiences across 160+ countries. |
3,643 | |||
| 79 |
Wellington Managementwellington.com
Independent investment management firm serving diverse clients worldwide with comprehensive capabilities across global equity, fixed income, alternatives, and private markets. |
3,609 | |||
| 80 |
Revvityrevvity.com
Revvity specializes in innovative health science solutions, technologies, and services for healthcare advancements worldwide, covering discovery, development, and diagnosis to cure |
3,569 | |||
| 81 |
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 | |||
| 82 |
Sonesta International Hotelssonesta.com
Leading global hotel company with 17 brands, 1200 hotels, 100K+ rooms across three continents, and award-winning loyalty program, offering unique and authentic guest experiences |
3,524 | |||
| 83 |
BeOne Medicinesbeonemedicines.com
Developing innovative, affordable cancer treatments for hematology and solid tumors with a global team and collaborative approach. |
3,350 | |||
| 84 |
Pyramid Global Hospitalitypyramidglobal.com
Pyramid Global Hospitality is a leading hotel management company with a strong focus on employee development and a people-centric culture |
3,344 | |||
| 85 | 3,272 | ||||
| 86 |
Rapid7rapid7.com
Global leader in AI-powered managed cybersecurity operations, advancing organizations' cyber resilience through integrating security data, AI, and threat intelligence to reduce risk and disrupt attackers. |
3,268 | |||
| 87 |
Saint-Gobain Abrasivessaint-gobain-surfacesolutions.com
The company offers powerful and precise abrasives solutions for various markets, focusing on customization, performance, and safety with global presence |
3,196 | |||
| 88 |
Preciselyprecisely.com
Provides data integrity solutions that enhance data quality, integrate datasets, and support analytics for organizations worldwide, ensuring reliable business insights. |
3,014 | |||
| 89 |
CCL Labelccllabel.com
Global leader in innovative label solutions for various industries, offering pressure sensitive and extruded film materials, metal components, and complementary products worldwide |
2,988 | |||
| 90 |
MFS Investment Managementmfs.com
Global investment manager offering active management, disciplined investing, risk management, serving financial advisors, intermediaries, and institutional clients worldwide. |
2,971 | |||
| 91 |
Watts Water Technologieswatts.com
Provides diverse water solutions for residential, industrial, and municipal applications, including plumbing, water quality, HVAC, and drainage systems. |
2,947 | |||
| 92 |
Viant Medicalviantmedical.com
Global provider of design and manufacturing services for medical devices across various specialties, offering end-to-end capabilities from development to packaging. |
2,921 | |||
| 93 | 2,920 | ||||
| 94 |
Klaviyoklaviyo.com
Unified customer platform empowering brands with ownership of consumer data to automate personalized email/SMS communications, foster customer relationships, and drive growth |
2,902 | |||
| 95 |
Alnylam Pharmaceuticalsalnylam.com
A global biotech company pioneering RNAi therapeutics to treat rare genetic diseases, with a breakthrough product and a robust pipeline |
2,883 | |||
| 96 |
Oxford Global Resourcesoxfordcorp.com
Delivering tailored solutions for technical challenges with staffing, consulting, and project management services globally, specializing in workforce mobilization and digital transformation |
2,879 | |||
| 97 |
Regal Beloit Corporationmaintenance.regalrexnord.com
This company manufactures global airflow, motion control, power transmission, and power generation solutions used in commercial, industrial, and residential settings worldwide. |
2,808 | |||
| 98 |
Public Consulting Grouppublicconsultinggroup.com
Consulting firm specializing in public sector solutions, improving health, education, and human services agencies to enhance community outcomes. |
2,714 | |||
| 99 |
CyberArkcyberark.com
Global leader in identity security. Offers comprehensive security for human and machine identities across applications, workforces, cloud, and DevOps lifecycle. |
2,712 | |||
| 100 |
NETSCOUTnetscout.com
This company provides a Visibility Without Borders platform to help essential organizations manage complex networks, unlock insights, anticipate problems, and stay unstoppable |
2,708 | |||
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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
- 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
- Publicly traded companies in Massachusetts 125
The same list elsewhere in United States
- Multinational companies in the United States 16,197
- Multinational companies in California 2,592
- Multinational companies in New York State 2,216
- Multinational companies in Texas 1,418
- Multinational companies in Florida 897
- Multinational companies in Illinois 831
- Multinational companies in New Jersey 624
- Multinational companies in Georgia 521
- Multinational companies in Pennsylvania 472
- Multinational companies in Michigan 468
- Multinational companies in Alabama 416
- Multinational companies in Virginia 396
- Multinational companies in Ohio 390
- Multinational companies in North Carolina 358
- Multinational companies in Washington State 288
- Multinational companies in Colorado 228
- Multinational companies in Minnesota 224
- Multinational companies in New York 1,836
- Multinational companies in San Francisco 446
- Multinational companies in Houston 402
- Multinational companies in Chicago 366
- Multinational companies in Miami 289
- Multinational companies in Atlanta 252
- Multinational companies in Boston 241