| # | Company | Employees |
|---|---|---|
| 1 |
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 |
| 2 |
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 |
| 3 |
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 |
| 4 |
Synitisyniti.com
Syniti offers enterprise data management solutions, helping businesses transform complex data challenges into competitive advantages with its unified learning platform and expert team |
1,872 |
| 5 |
Justice Resource Institutejri.org
Dedicated to addressing challenges in human services and education, JRI opens doors to opportunity and independence through compassionate support and community leadership |
1,374 |
| 6 |
IDG (International Data Group)idc.com
Foundry harnesses fully-consented data from global editorial brands to power media, demand generation, and martech solutions with a focus on diversity and inclusion |
1,317 |
| 7 |
Advisor360掳advisor360.com
Utilize a SaaS WealthTech platform to enhance productivity, generate more revenue, streamline operations, and mitigate costs and regulatory risk |
626 |
| 8 |
The Channel Companythechannelco.com
Providing communication, recruitment, enablement, engagement, demand generation, and intelligence services to support IT channel partnerships and ecosystem. |
620 |
| 9 |
Needham Public Schoolsneedham.schoolspring.com
A school district near Boston focused on academic excellence, diversity, equity, and community collaboration to cultivate the personal growth of students |
584 |
| 10 |
Saint Joseph Schoolsaintjoes.com
A historic school in Halifax overseen by the Sisters of Charity, educating over 450 students from preschool to 8th grade in three distinct programs |
574 |
| 11 |
Needham Bankneedhambank.com
A reliable partner for dreamers, doers, and builders, offering expertise in serving builders and developers with efficiency and dedication |
523 |
| 12 |
Viatorviator.com
Viator offers an app with 300,000+ travel experiences worldwide, making it easy to find and book unforgettable adventures |
512 |
| 13 |
First Help Financialfirsthelpfinancial.com
Provides flexible auto financing to overlooked consumers, including first-time buyers, with native-language support, across over 25 US states. |
496 |
| 14 | 483 | |
| 15 |
Beth Israel Deaconess Hospital-Needhambidneedham.org
A licensed acute care community hospital serving multiple surrounding communities for over 100 years, focusing on quality, safety, and expanding access to great care |
471 |
| 16 |
Lily Transportation LLClily.com
Dedicated logistics company providing efficient and service-sensitive transportation systems for a range of industries across the US and Canada |
409 |
| 17 |
Walker Therapeutic & Educational Programswalkercares.org
A not-for-profit organization providing intensive therapeutic and academic services for vulnerable children, teens, and families facing complex mental health challenges |
373 |
| 18 |
Town of Needham, MAneedhamma.gov
The Town of Needham in Massachusetts offers a rewarding career serving the community, with a focus on inclusivity and professionalism |
272 |
| 19 |
WCVB Channel 5wcvb.com
Boston鈥檚 media leader offering news, weather, sports, and entertainment through various platforms; committed to serving the region with quality local content |
255 |
| 20 |
Enigma (now part of PTC http://www.linkedin.com/company/ptc)ptc.com
Enigma, now part of PTC, offers solutions within the Service Lifecycle Management segment for gaining a competitive product and service advantage |
212 |
| 21 |
North Hill Needham Inc.northhill.org
A Massachusetts senior living community offering luxurious residences, innovative opportunities, and a transformative True North initiative for vibrant living |
199 |
| 22 |
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 |
| 23 |
Counseling & Psychotherapy Centercpcamerica.com
Specialized agency providing sex offender management and treatment programs, training professionals, and consulting on violence prevention programs for community safety |
176 |
| 24 |
Verastem Oncologyverastem.com
A late-stage biopharmaceutical company dedicated to developing and commercializing new medicines for cancer patients by inhibiting critical signaling pathways |
167 |
| 25 |
Mobius Executive Leadershipmobiusleadership.com
A premier provider of leadership development programs tailored to maximize strategic impact, embedding exceptional skills and fostering systemic change and employee well-being |
167 |
| 26 |
Beyond BookSmartbeyondbooksmart.com
A company providing Executive Function coaching to students of all ages to improve self-management skills and achieve lasting success |
166 |
| 27 |
Charles River Centercharlesrivercenter.org
A nonprofit human services agency in Massachusetts empowering adults and children with disabilities through employment, housing, day programs, and recreation |
157 |
| 28 |
Enservioenservio.com
A company that blends digital technology with human expertise to provide risk-free solutions for contents claims and offers integrated vehicle lifecycle and fleet management services globally |
150 |
| 29 |
Provider Groupcrossagency.com
A boutique insurance brokerage offering risk management solutions for businesses and individuals with expertise in Employee Benefits, Private Client Services, and Property & Casualty Insurance |
55 |
| 30 |
World Insurance Associates - formerly NorthStar Insurance Servicesworldinsurance.com
Leading insurance and risk management provider in New England, offering property and casualty insurance, employee benefits, and risk management solutions with integrity and expertise |
43 |
| 31 |
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 |
| 32 |
Lily Transportation Corp.lily.com
Specializing in efficient Dedicated Logistics Systems, serving the United States and Canada with industry expertise to help clients achieve business goals |
34 |
| 33 |
Rocket Farm Studiosrocketfarmstudios.com
Experienced team specializing in award-winning mobile app development to launch, grow, and scale new products successfully, backed by data and metrics |
11 |
| 34 |
MIGRATION CAPITAL LLCmigrationcapital.com
A private investment company based in Boston investing in tech-enabled growth-stage services with a focus on long-term value creation |
4 |
| 35 |
EStar Energy, Inc.EStarEnergyInc.com
This company in Massachusetts offers natural gas, electricity, renewable electricity, heating oil, and propane services, focused on providing energy solutions |
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 Oct 24, 2026.
The same list elsewhere in United States
- The largest companies in the United States 91,669
- The largest companies in California 12,813
- The largest companies in New York State 10,485
- The largest companies in Texas 8,086
- The largest companies in Florida 4,945
- The largest companies in Illinois 4,175
- The largest companies in Pennsylvania 3,110
- The largest companies in Massachusetts 3,093
- The largest companies in Georgia 2,632
- The largest companies in Ohio 2,618
- The largest companies in New Jersey 2,569
- The largest companies in Virginia 2,503
- The largest companies in Michigan 2,346
- The largest companies in North Carolina 2,174
- The largest companies in Alabama 1,806
- The largest companies in Washington State 1,785
- The largest companies in Colorado 1,774
- The largest companies in Minnesota 1,700
- The largest companies in Maryland 1,527
- The largest companies in Wisconsin 1,482
- The largest companies in New York 6,920
- The largest companies in San Francisco 2,030
- The largest companies in Houston 1,791
- The largest companies in Chicago 1,668