| # | Company | Employees |
|---|---|---|
| 1 |
Digitas North Americadigitas.com
Creation of magnetic brand experiences using data, technology, creative, media, and strategy to deliver integrated marketing solutions globally. |
2,628 |
| 2 | 2,011 | |
| 3 |
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 |
| 4 |
Jack Morton Worldwidejackmorton.com
Global agency specializing in event marketing, integrated campaigns, sponsorship, and employee engagement through multi-channel experiential technology, trade show exhibits, and broadcast design services. |
1,414 |
| 5 |
Boston Globe Mediabostonglobemedia.com
Largest New England news organization providing trusted journalism, engaging content marketing, and targeted advertising to influential audiences. |
1,240 |
| 6 |
DemandSciencedemandscience.com
Provides global buyer intelligence and predictive insights to align sales and marketing with qualified audiences for B2B companies. |
967 |
| 7 |
AMPampagency.com
Full-service marketing agency combining creativity and commerce expertise to connect brand love with buying behavior and drive impactful conversions. |
881 |
| 8 |
SapientNitrolinkedin.com
Global digital business transformation partner created in 2019 through a merger of legendary brands, now known as Publicis Sapient Join our community! |
788 |
| 9 |
MMBmmb580.com
Passionate, top-tier agency of inclusive thinkers and creators dedicated to inspiring positive change through their work for clients |
718 |
| 10 | 530 | |
| 11 |
Arnold Worldwidearn.com
An integrated advertising agency focused on using creativity to drive growth for a diverse portfolio of iconic brands and challengers |
422 |
| 12 |
Verndaleverndale.com
Digital experience agency providing strategy, design, development, and marketing for web, mobile, and ecommerce platforms to create human-centric customer journeys and business growth. |
386 |
| 13 |
Aquent Studiosaquentstudios.com
Global co/creation agency driving collaboration & partnerships through strategy, enablement, & activation to create breakthrough brand experiences |
377 |
| 14 |
Big Night Entertainment Groupbignight.com
Entertainment, hospitality, creative, marketing, and media company specializing in innovative experiences through restaurants, nightclubs, live music venues, and media ventures |
343 |
| 15 |
PANpancommunications.com
Integrated marketing and PR agency specializing in B2B technology and healthcare brands, transforming ideas into captivating stories for brand growth |
309 |
| 16 |
Acceleration Partnersaccelerationpartners.com
Global agency specializing in data-driven partnership marketing, managing diverse clients and creating high-performing, measurable brand-consumer connections worldwide. |
301 |
| 17 |
829 Studios829studios.com
The company provides innovative digital marketing solutions to help businesses grow by delivering tangible results and enhancing their online presence |
297 |
| 18 | 266 | |
| 19 |
Skywordskyword.com
This company specializes in creating customized content experiences for brands to enhance customer connections, build trust, and drive results |
202 |
| 20 |
Niftgonift.com
Nift revolutionizes customer acquisition by offering AI-matched 'thank you' gifts on partner platforms, driving loyal customers with trackable results and first-party data |
184 |
| 21 |
Brafton Inc.brafton.com
Content marketing agency providing platform, strategy, and creation services Offers SEO, social media, design, development, and content creation globally since 2008 |
171 |
| 22 |
Allen & Gerritsena-g.com
A fiercely independent advertising agency founded in 1985, specializing in building brands' best selves through strategic messaging and audience engagement across touchpoints |
143 |
| 23 |
PIERpierinc.com
The company specializes in strategic and interactive marketing services, helping businesses reach their target audience effectively through digital platforms |
90 |
| 24 |
Megawattmegawattcontent.com
Megawatt is a remote content agency specializing in creating top-notch B2B tech content for clients worldwide, focusing on marketing and sales funnel strategy |
36 |
| 25 |
marlo marketingmarlomarketing.com
A full-service agency offering integrated brand strategy, PR, marketing, and creative services for consumer products and services from startups to Fortune 500 companies |
28 |
| 26 |
Norbellanorbella.com
Media strategy, planning, and buying firm specializing in healthcare, technology, and consumer brands Utilizes consumer behavior insights to deliver successful campaigns |
22 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 2, 2026.
More company lists in Boston
- The largest companies in Boston 1,091
- SaaS companies in Boston 195
- Software Development companies in Boston 147
- Financial services firms in Boston 127
- AI companies in Boston 125
- Venture capital and private equity firms in Boston 99
- Education providers in Boston 87
- Financial Services companies in Boston 86
- Venture Capital and Private Equity Principals companies in Boston 78
- Data and analytics companies in Boston 59
- Consulting firms in Boston 58
- IT Services and IT Consulting companies in Boston 56
- AI-native companies in Boston 51
- IT services companies in Boston 50
- Higher Education companies in Boston 48
- Investment Management companies in Boston 47
- Hospitals and Health Care companies in Boston 46
- Critical infrastructure operators in Boston 44
- Healthcare providers in Boston 42
- Non-profit Organizations companies in Boston 36
- Real Estate companies in Boston 34
- Technology, Information and Internet companies in Boston 33
- Business Consulting and Services companies in Boston 32
- Publicly traded companies in Boston 28
The same list elsewhere in United States
- Marketing and communications agencies in the United States 1,807
- Marketing and communications agencies in New York State 449
- Marketing and communications agencies in California 288
- Marketing and communications agencies in Florida 111
- Marketing and communications agencies in Texas 98
- Marketing and communications agencies in Illinois 89
- Marketing and communications agencies in New Jersey 55
- Marketing and communications agencies in Massachusetts 46
- Marketing and communications agencies in Georgia 45
- Marketing and communications agencies in Pennsylvania 41
- Marketing and communications agencies in Michigan 40
- Marketing and communications agencies in Ohio 38
- Marketing and communications agencies in Minnesota 37
- Marketing and communications agencies in Washington State 37
- Marketing and communications agencies in Arizona 30
- Marketing and communications agencies in North Carolina 30
- Marketing and communications agencies in Missouri 26
- Marketing and communications agencies in New York 389
- Marketing and communications agencies in Los Angeles 65
- Marketing and communications agencies in Chicago 53
- Marketing and communications agencies in San Francisco 53
- Marketing and communications agencies in Miami 31
- Marketing and communications agencies in Atlanta 28
- Marketing and communications agencies in San Diego 26