| # | Company | Employees |
|---|---|---|
| 1 |
Harvard Business Reviewhbr.org
Provides professionals rigorous insights, best practices to lead effectively, make positive impact, bridging academia and global enterprises. |
9,905 |
| 2 |
Sales Humorthequota.co
A company offering a solution for updating Salesforce quickly and easily, along with a free weekly newsletter for sales professionals |
2,792 |
| 3 |
MIT Technology Reviewtechnologyreview.com
Independent media company providing analysis, features, and events explaining commercial, social, and political impacts of new technologies worldwide. |
2,029 |
| 4 |
Informa TechTargettechtarget.com
Leverages first-party data from technology websites to provide expert-led digital services, custom content, advertising, and demand generation for B2B tech buyers and sellers. |
1,518 |
| 5 |
Her Campus Mediahercampusmedia.com
A leading media portfolio catering to college students and Gen Z, offering diverse content through platforms like Her Campus and Spoon University |
1,427 |
| 6 | 1,344 | |
| 7 |
Boston Globe Mediabostonglobemedia.com
Largest New England news organization providing trusted journalism, engaging content marketing, and targeted advertising to influential audiences. |
1,240 |
| 8 | 830 | |
| 9 |
The Channel Companythechannelco.com
Providing communication, recruitment, enablement, engagement, demand generation, and intelligence services to support IT channel partnerships and ecosystem. |
620 |
| 10 |
Harvard Business Publishinghbr.org
A global leader in management education, Harvard Business Publishing empowers leaders with innovative ideas, impactful content, and transformative learning experiences |
520 |
| 11 |
New England Patriotspatriots.com
Professional football team based in New England with a rich history dating back to 1959, playing at Gillette Stadium in Foxborough, MA |
497 |
| 12 |
The First Church of Christ, Scientistchristianscience.com
Global headquarters supporting Christian Science principles & practices, publishing Christian Science literature, overseeing church activities, operating a news organization & museum |
457 |
| 13 |
MarTechmartech.org
An online platform and conference that connects marketers interested in using technology to enhance branding and drive business growth |
446 |
| 14 |
Cell Presscell.com
Publisher of over 50 scientific journals across various disciplines, with a focus on editorial excellence, innovation, and advocacy to share inspiring science |
446 |
| 15 |
Massachusetts Medical Societymassmed.org
A leading medical society in Massachusetts dedicated to educating and advocating for patients and physicians, publishing medical journals, and providing continuing medical education programs |
390 |
| 16 |
The Harvard Crimsonthecrimson.com
The Harvard Crimson is a daily college newspaper in Cambridge, MA, publishing news, sports, arts sections, with a rich journalistic history |
390 |
| 17 |
National Bureau of Economic Researchnber.org
A nonprofit research organization conducting nonpartisan economic research through a network of over 1,700 affiliated scholars, without making policy recommendations |
375 |
| 18 |
Independent Investorindependentinvestor.us
This company helps independent investors achieve market-beating returns by providing answers to tough investing questions using research by Valens Research |
367 |
| 19 |
STATstatnews.com
Providing in-depth reporting on health, medicine, biotech, and policy, uncovering discoveries, controversies, and key industry influencers. |
364 |
| 20 |
Forbes Agency Councilcouncils.forbes.com
A professional networking community for agency leaders, offering exclusive opportunities, resources, and connections to help them thrive and succeed |
361 |
| 21 |
National Geographic Learningngl.cengage.com
Provider of quality K-12 education programs, textbooks, and online learning solutions with a real-world perspective, specializing in Science, Social Studies, and Math curriculum |
338 |
| 22 |
Vista Higher Learningvistahigherlearning.com
A diverse team dedicated to creating engaging print and digital language products that promote appreciation for world languages and cultures |
328 |
| 23 |
America's Test Kitchenamericastestkitchen.com
This company is a leading multimedia cooking resource empowering home cooks with TV shows, magazines, cookbooks, and unique processes |
264 |
| 24 |
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 |
| 25 |
7 NEWS, WHDH-TVwhdh.com
Boston-based independent television station owned by Sunbeam Television Operates in a duopoly with CW affiliate WLVI, providing news and entertainment |
255 |
| 26 |
American Hockey Leaguetheahl.com
Professional ice hockey league serving as the main development circuit for the NHL, with 30 teams in the US and Canada |
225 |
| 27 |
Jones & Bartlett Learningjblearning.com
A global provider of educational solutions for secondary, post-secondary, and professional markets, offering innovative technology applications and authoritative content for improved learning outcomes |
185 |
| 28 |
The Christian Science Monitorcsmonitor.com
An independent global news organization with award-winning journalism that goes beyond headlines to monitor progress and provide insightful coverage |
183 |
| 29 | 183 | |
| 30 |
Emerj Artificial Intelligence Researchemerj.com
A publishing and market research company specializing in enterprise AI ROI through interviews/surveys with Global 2000 leaders, providing insights and connections to AI tools/providers |
35 |
| 31 |
Greater Media Charlotte, Inc.greatermedia.com
A leading radio company focusing on entertaining, informing, and serving communities through local talent, news, sports, events, and environmental initiatives |
8 |
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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 Nov 2, 2026.
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- IT Services and IT Consulting companies in Massachusetts 177
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- Public sector organisations in Massachusetts 99
The same list elsewhere in United States
- Media companies and publishers in the United States 1,233
- Media companies and publishers in New York State 320
- Media companies and publishers in California 250
- Media companies and publishers in Florida 60
- Media companies and publishers in Illinois 52
- Media companies and publishers in Texas 43
- Media companies and publishers in Pennsylvania 33
- Media companies and publishers in New Jersey 32
- Media companies and publishers in Alabama 31
- Media companies and publishers in Virginia 31
- Media companies and publishers in New York 304
- Media companies and publishers in Los Angeles 57
- Media companies and publishers in San Francisco 56
- Media companies and publishers in Washington 52
- Media companies and publishers in Chicago 33