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Top 30 multinational companies in Boston

Tamtam tracks 241 multinational companies headquartered in Boston. This list ranks the 30 largest by number of employees on LinkedIn, led by GE, Fidelity Investments and GE Vernova. Their median headcount is 6,382. Half of them were founded in 1963 or later.

馃嚭馃嚫 Boston30 companiesUpdated Nov 11, 2026

These Boston-headquartered companies represent a mix of established multinational corporations and a few younger firms, primarily in financial services, technology, and consulting. Notable examples include Fidelity Investments, offering diversified financial services, and GE Vernova, focused on electrifying and decarbonizing the planet. Boston Consulting Group (BCG) is a global management consulting firm, while Iron Mountain specializes in storage and information management. Wayfair is a destination for home goods, and Vertex Pharmaceuticals develops medicines for serious diseases.

A clear pattern among these companies is their global reach, with many operating across diverse international markets. The presence of several financial services and consulting firms, alongside significant technology and industrial players, indicates a diversified but mature corporate landscape in Boston.

#CompanyIndustryHeadquarters EmployeesFounded
1
GEge.com

Focus on advancing aviation and energy industries through innovative technologies and solutions shared via specialized aerospace and energy platforms.

Industrial Machinery Manufacturing 馃嚭馃嚫 Boston 99,488 n/a
2
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.

Financial Services 馃嚭馃嚫 Boston 84,668 1946
3
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

Energy Technology 馃嚭馃嚫 Boston 70,646 n/a
4
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.

Financial Services 馃嚭馃嚫 Boston 46,913 1792
5
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

Business Consulting and Services 馃嚭馃嚫 Boston 40,412 1963
6
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

Insurance 馃嚭馃嚫 Boston 37,734 1912
7
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

IT Services and IT Consulting 馃嚭馃嚫 Boston 24,357 n/a
8
Publicis Sapientpublicissapient.com

A digital business transformation partner, specializing in strategy, product, experience, engineering, data, and delivering impactful solutions to global organizations

Business Consulting and Services 馃嚭馃嚫 Boston 24,251 n/a
9
Northeastern Universitynortheastern.edu

Global research university combining experiential learning with cooperative education, offering diverse programs and addressing health, security, and sustainability challenges worldwide.

Higher Education 馃嚭馃嚫 Boston 17,385 n/a
10
Wayfairaboutwayfair.com

Destination for all things home, offering expert customer service, tools for easy shopping, and wide selection to help create personalized spaces

Retail 馃嚭馃嚫 Boston 12,524 2002
11
CDM Smithcdmsmith.com

This company provides comprehensive solutions in water, environment, transportation, energy, and facilities to worldwide public and private clients

Civil Engineering 馃嚭馃嚫 Boston 8,617 1947
12
PTCptc.com

It provides solutions for manufacturers to enhance product differentiation, operational excellence, and workforce productivity through digital transformation and technology.

Software Development 馃嚭馃嚫 Boston 8,184 n/a
13
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

Software Development 馃嚭馃嚫 Boston 7,762 2011
14
Temutemu.com

Online marketplace connecting consumers with millions of merchandise partners, manufacturers, and brands offering affordable products worldwide.

Technology, Information and Internet 馃嚭馃嚫 Boston 7,373 n/a
15
Vertex Pharmaceuticalsvrtx.com

Global biotechnology company focusing on creating medicines for serious and life-threatening diseases, with a pioneering history in treating cystic fibrosis

Biotechnology Research 馃嚭馃嚫 Boston 6,382 1989

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16
American Toweramericantower.com

Global provider of digital infrastructure supporting mobile and broadband networks, enabling connectivity, innovation, and bridging digital divides worldwide.

Telecommunications 馃嚭馃嚫 Boston 6,111 1995
17
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

Software Development 馃嚭馃嚫 Boston 6,090 n/a
18
IDCidc.com

Provider of market intelligence, advisory services, and events for IT, telecommunications, and consumer technology markets worldwide, helping businesses make informed decisions

Technology, Information and Internet 馃嚭馃嚫 Boston 5,917 1964
19
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.

Environmental Services 馃嚭馃嚫 Boston 5,812 n/a
20
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

Mobile Gaming Apps 馃嚭馃嚫 Boston 5,760 2012
21
Alexion Pharmaceuticals, Inc.alexion.com

Development of innovative medicines targeting rare diseases, focusing on complement system biology, expanding global reach to serve patients worldwide.

Biotechnology Research 馃嚭馃嚫 Boston 5,112 1992
22
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

Insurance 馃嚭馃嚫 Boston 4,963 2013
23
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

Retail 馃嚭馃嚫 Boston 4,522 1908
24
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.

Business Consulting and Services 馃嚭馃嚫 Boston 4,271 1983
25
Aquentaquent.com

Global work solutions company providing talent, technology, and services for businesses through recruiting, creative strategy, project management, and more

Staffing and Recruiting 馃嚭馃嚫 Boston 4,071 n/a
26
Reebokreebok.com

It designs and creates fitness gear and experiences, aiming to inspire individuals to achieve their best physically, mentally, and socially.

Manufacturing 馃嚭馃嚫 Boston 4,008 1895
27
Goodwingoodwinlaw.com

Global law firm providing litigation, regulatory compliance, advisory services, and complex transactions for clients in diverse industries worldwide.

Law Practice 馃嚭馃嚫 Boston 3,975 1912
28
Cabot Corporationcabotcorp.com

Global specialty chemical and performance materials company providing solutions to address current challenges and future customer needs worldwide.

Chemical Manufacturing 馃嚭馃嚫 Boston 3,719 1882
29
Berklee College of Musicberklee.edu

A leading college offering top-tier music education for students around the world

Musicians 馃嚭馃嚫 Boston 3,696 1946
30
Wellington Managementwellington.com

Independent investment management firm serving diverse clients worldwide with comprehensive capabilities across global equity, fixed income, alternatives, and private markets.

Investment Management 馃嚭馃嚫 Boston 3,609 1933

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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.

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