Top companies in Boston

Biotech, robotics, and enterprise software clustered around MIT and Harvard.

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Ranked by current headcount across companies headquartered in Boston. Refreshed daily.

1
Walmart· Bentonville, Arkansas, United States
More than 60 years ago, Sam Walton opened the first Walmart in Rogers, Arkansas. Today, we’re a people-led, tech-powered omnichannel retailer dedicated to helping people save money and live better all around the world.Our 2.1 million associates are the engine behind what we do — serving customers and members in communities spanning 19 countries, in stores and clubs, online and through a supply chain built for speed and scale.We’re committed to creating clear pathways for associates to learn, grow and advance. Whether you’re starting your first job or bringing years of experience, you’ll find room to grow, learn new skills and build a career with purpose. We’re proud to invest in our people and foster a culture grounded in respect, integrity, service and striving for excellence.Recognized as a Fortune 100 Best Companies to Work For® (2025) and Great Place To Work®-CertifiedTM , we’re proud of what we’re building together.
- Post-IPO debt
- 482.1k employees
- Founded 1962
2
GE· Boston, Massachusetts, United States
A new era is here, and we want you to be a part of it. We will now be sharing our content on our respective GE Aerospace and GE Vernova pages. Be sure to follow each to keep up with the future of aviation and energy.
- Grant
- 95.1k employees
3
Fidelity Investments· Boston, Massachusetts, United States
Fidelity’s mission is to strengthen the financial well-being of our customers and deliver better outcomes for the clients and businesses we serve. Fidelity’s strength comes from the scale of our diversified, market-leading financial services businesses that serve individuals, families, employers, wealth management firms, and institutions. With assets under administration of $15.0 trillion, including discretionary assets of $5.9 trillion as of March 31, 2025, we focus on meeting the unique needs of a broad and growing customer base. Privately held for 78 years, Fidelity employs more than 77,000 associates across the United States, Ireland, and India. For our Terms and Conditions, please visit http://go.fidelity.com/LIterms
- 84.9k employees
- Founded 1946
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4
Sam's Club· Bentonville, Arkansas, United States
Sam’s Club (Nasdaq: WMT) a division of Walmart Inc., is the membership warehouse club solution for everyday living. Our President and CEO is Latriece Watkins and our headquarters is in Bentonville, AR. For the fiscal year ending January 31, 2023, Sam’s Club’s total revenue was $84.3 billion.There are almost 600 clubs across the U.S and Puerto Rico and each averages approximately 136,000 square feet. Our first club opened in Midwest City, Oklahoma, in 1983. Many clubs include sustainable features such as day-lighting with skylights, night dimming, central energy management, water-conserving fixtures, natural concrete floors and recycling.Sam’s Club employs thousands of associates in the U.S. and Puerto Rico. Approximately 75 percent of club management was promoted from hourly positions.In addition to the leading national brands, Sam's Club also features Member's Mark, an exclusive, premium-quality private brand. Member's Mark products are exclusive designs that use top-of-the-line materials and the highest quality ingredients to make sure they have the best quality and value at members-only prices.A Sam’s Club membership can more than pay for itself with exclusive savings on the items you need, the items you love and all sorts of unexpected items.Sam’s Club focuses on providing members with exclusive savings and quality merchandise, as well as services like Delivery from Club and Curbside Pickup, savings on fuel, full-service Pharmacy and more. We offer our members the most choices on how to shop with us, anywhere, any time.With over 40 years of innovating in the category, Sam’s Club continues to redefine club membership shopping with its curated assortment of quality fresh food and Member’s Mark® items, in addition to market leading technologies and services like Scan & GoTM️, curbside pickup and home delivery. Visit the Sam's Club Newsroom, shop at SamsClub.com or connect with Sam's Club on LinkedIn, X, Facebook, Instagram, TikTok and Pinterest.
- 50.7k employees
- Founded 1983
5
State Street· Boston, Massachusetts, United States
At State Street, we deliver leading investment platforms, data, expertise, and solutions that accelerate performance and better decision making.With over 200 years of global financial leadership, we equip institutional investors through a comprehensive suite of capabilities:Investment Services: Integrated front-to-back solutions across custody, accounting, and operations.Investment Management: Index and active strategies from one of the world’s largest asset managers.Markets: Multi-asset trading, FX solutions, and data-driven research to enhance portfolio value.Who We Are•50,000+ employees worldwide•Active in 100+ markets•#1 in ETF servicingWhat You’ll Find Here•Executive perspectives and thought leadership•Timely market commentary and macro insights•Our views on investment operations, ETFs, private markets, and digital finance•Stories reflecting our culture, values and commitment to diversity and inclusion
- Post-IPO debt
- 47.3k employees

6
Whirlpool Corporation· Benton Harbor, Michigan, United States
Whirlpool Corporation (NYSE: WHR) is a leading home appliance company, in constant pursuit of improving life at home. As the only major U.S.-based manufacturer of kitchen and laundry appliances, the company is driving meaningful innovation to meet the evolving needs of consumers through its iconic brand portfolio, including Whirlpool, KitchenAid, JennAir, Maytag, Amana, Brastemp, Consul, and InSinkErator. In 2025, the company reported approximately $16 billion in annual net sales - close to 90% of which were in the Americas - 41,000 employees, and 35 manufacturing and technology research centers. Additional information about the company can be found at WhirlpoolCorp.com.
- Post-IPO debt
- 46k employees
- Founded 1911
7
Boston Consulting Group (BCG)· Boston, Massachusetts, United States
Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities. BCG was the pioneer in business strategy when it was founded in 1963. Today, we work closely with clients to embrace a transformational approach aimed at benefiting all stakeholders—empowering organizations to grow, build sustainable competitive advantage, and drive positive societal impact. Our diverse, global teams bring deep industry and functional expertise and a range of perspectives that question the status quo and spark change. BCG delivers solutions through leading-edge management consulting, technology and design, and corporate and digital ventures. We work in a uniquely collaborative model across the firm and throughout all levels of the client organization, fueled by the goal of helping our clients thrive and enabling them to make the world a better place.BCG Privacy Policy: https://www.bcg.com/about/privacy-policy.aspx
- 40k employees
- Founded 1963
8
Dunkin'· Roxbury Crossing, Massachusetts, United States
Dunkin' Brands Inc. is one of the world's leading franchisors of quick service restaurants (QSR) serving hot and cold coffee and baked goods, as well as hard-serve ice cream. The Dunkin' Brands 100% franchise global business model includes more than 11,700 Dunkin' Donuts restaurants and more than 7,600 Baskin-Robbins restaurants. Dunkin' Brands Group, Inc. is headquartered in Canton, Massachusetts.
- 39k employees
- Founded 1950
9
Liberty Mutual Insurance· Boston, Massachusetts, United States
At Liberty Mutual, we believe progress happens when people feel secure. For more than 110 years we have helped people and businesses embrace today and confidently pursue tomorrow by providing protection for the unexpected and delivering it with care. A Fortune 100 company with more than 40,000 employees in 28 countries and economies, we are the ninth largest global property and casualty insurer and generate more than $50 billion in annual consolidated revenue. We operate through three strategic business units: US Retail Markets, providing auto, home, renters and other personal and small commercial lines property and casualty insurance to individuals and small businesses countrywide; Global Risk Solutions, delivering a full range of comprehensive commercial and specialty insurance, reinsurance and surety solutions to mid-size and large businesses worldwide; and Liberty Mutual Investments, deploying more than $100 billion of long-term capital globally across its integrated platform to drive economic growth, power innovation and secure Liberty Mutual’s promises. For more information, visit www.libertymutualinsurance.com.
- 38.2k employees
- Founded 2015
10
Bain & Company· Boston, Massachusetts, United States
Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future. Across 65 cities in 40 countries, we work alongside our clients as one team with a shared ambition to achieve extraordinary results, outperform the competition, and redefine industries. We complement our tailored, integrated expertise with a vibrant ecosystem of digital innovators to deliver better, faster, and more enduring outcomes. Our 10-year commitment to invest more than $1 billion in pro bono services brings our talent, expertise, and insight to organizations tackling today’s urgent challenges in education, racial equity, social justice, economic development, and the environment. We earned a platinum rating from EcoVadis, the leading platform for environmental, social, and ethical performance ratings for global supply chains, putting us in the top 1% of all companies. Since our founding in 1973, we have measured our success by the success of our clients.
- 26k employees
- Founded 1973

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Find engineers and operators at companies in Boston

Boston is one of the densest markets for technology talent in the world. The list above ranks the largest companies headquartered in Boston by current headcount, drawn from public LinkedIn and Crunchbase records. With 5,729 matching companies in Refolk’s index, the depth of engineers, designers, product managers, and founders is broad across stages and industries.

Hiring in Boston usually means hiring out of these companies. The biggest names anchor the talent pool - every senior engineer in Boston likely has at least one of them on their resume - and the fast-growing ones generate the most movement.

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How this list is built

Refolk pulled the largest companies headquartered in Boston from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 25 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 21:28:22 GMT

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