| # | Company | Employees |
|---|---|---|
| 1 |
Monotypemonotype.com
This company specializes in bringing brands to life through type and technology, offering accessible font solutions for creative professionals globally |
1,661 |
| 2 |
GEI Consultants, Inc.geiconsultants.com
A leading firm in geotechnical, environmental, water resources, and ecological science/engineering, providing innovative solutions on projects across the globe |
1,593 |
| 3 |
OASISoasis-open.org
OASIS is a global standards body that offers a platform for developing and standardizing a wide range of technologies and initiatives |
1,421 |
| 4 | 991 | |
| 5 |
Azurity Pharmaceuticalsazurity.com
Development and distribution of innovative, high-quality medicines across multiple therapeutic areas, leveraging data and AI for global market reach. |
900 |
| 6 |
Gradiantgradiant.com
Provides advanced water and wastewater treatment solutions for critical industries, reducing water usage, reclaiming resources, and renewing wastewater into freshwater. |
859 |
| 7 |
Techlogixtechlogix.com
An innovative global IT services company offering consultancy and solutions to facilitate enterprise transformation through the integration of people, processes, and technology |
729 |
| 8 |
Analytix Solutionsanalytix.com
Single source provider offering integrated solutions, technological aptitude, and cross-disciplinary expertise to improve systems, processes, reliable data, and overall company profitability. |
600 |
| 9 |
Woburn Public Schoolswoburnps.com
An innovative school district dedicated to the success of diverse students, preparing them with resources for a successful future |
517 |
| 10 |
Ninety Nine Restaurant & Pubjobs.99restaurants.com
A New England-based casual dining chain offering great food and drink at affordable prices, with a focus on respect for guests and team members |
457 |
| 11 |
ScribeEMR, Inc.scribeemr.com
A solution for clinical documentation challenges, ScribeEMR provides real-time remote scribes to enter patient information into EMRs, improving accuracy and reducing data entry time |
446 |
| 12 |
CoachUp, Inccoachup.com
A service connecting athletes with private coaches to help them reach the next level in sports and life nationwide |
435 |
| 13 |
Evosysevosysglobal.com
A global leader in Oracle implementation services, offering Oracle Cloud solutions to drive business transformation and efficiency with a team of 2000+ experts |
416 |
| 14 |
Replimunereplimune.com
This company is dedicated to developing innovative cancer treatments that activate a strong full-body anti-tumor response, aiming to make cancer curable |
403 |
| 15 |
Sirtex Medical Limitedsirtex.com
Global healthcare company developing targeted radiation therapy for liver cancer, with a focus on improving outcomes and innovating new therapies |
388 |
| 16 |
MES Solutionsmessolutions.com
Provider of credentialed physicians for Independent Medical Examinations, Peer Reviews, and Record Reviews in various insurance and government markets |
386 |
| 17 |
Aurigaauriga.com
A software R&D and IT outsourcing services provider with 30 years of experience offering software engineering, testing, and consultancy services to various industries |
368 |
| 18 |
Blancco Technology Groupblancco.com
Provides scalable software solutions for secure, certified data erasure across devices and cloud with automated, audit-ready reporting. |
361 |
| 19 |
Vassar Labsvassarlabs.com
Development of technology-driven solutions for enterprise digital transformation, climate change, water management, agriculture, land use, and disaster risk assessment. |
345 |
| 20 |
Bureau Veritas Cybersecuritycybersecurity.bureauveritas.com
Expert cybersecurity partner for organizations. Identification of risks, defense strengthening, and compliance with cybersecurity standards and regulations. Global presence. |
341 |
| 21 |
The Dolben Company, Inc.dolben.com
A property management company with offices in Massachusetts and Maryland, managing over 17,000 residential units in New England and the Mid-Atlantic regions since 1929 |
324 |
| 22 |
3STEP Sportsthreestep.com
Leading provider of youth sports clubs and events, impacting over 11 million athletes nationwide with top-tier coaching, events, facilities, and media content |
319 |
| 23 |
Boston Metalbostonmetal.com
Revolutionizing steel production with carbon-free technology that is more efficient, cost-effective, and eco-friendly, using Molten Oxide Electrolysis (MOE) |
316 |
| 24 |
Northern Banknbtc.com
A leading New England bank offering comprehensive banking solutions, community investment, and top-rated performance for businesses and individuals |
313 |
| 25 |
Corporate Chefscorporatechefs.com
A customer-focused company, obsessed with finding the best food solutions for cafes and markets, committed to doing good in communities |
215 |
| 26 |
Atlantic Plywood Corporationatlanticplywood.com
A leading wholesale supplier of quality hardwood plywood and panel products on the East Coast, serving woodworking industries with unmatched selection and customer service |
205 |
| 27 |
Printexprintex-inc.com
A Brand Management company established in 1994, specializing in promotional items, wearables, and print services with a focus on customer satisfaction and innovative solutions |
182 |
| 28 |
Empyrean Solutionsempyreansolutions.com
A company providing fast and accurate financial risk management solutions for banks and credit unions with a focus on efficiency and cost reduction |
173 |
| 29 | 169 | |
| 30 |
NuPath Inc.nupathinc.org
This company is dedicated to improving the lives of people with disabilities through community, innovation, collaboration, and creating a world of dignity and respect |
168 |
| 31 |
Aptimaaptima.com
Aptima specializes in optimizing human performance in high-stakes industries through innovative technologies and solutions for defense, aviation, healthcare, and more |
168 |
| 32 | 167 | |
| 33 |
TimePaymenttimepayment.com
This company provides technology tools and capital for equipment lease financing, serving a wide range of customers with fast and competitive solutions |
162 |
| 34 |
Next Step Healthcarenextstephc.com
Next Step Healthcare offers nursing and rehab facilities in Massachusetts for individuals facing health challenges, focusing on personalized, worry-free care |
160 |
| 35 | 159 | |
| 36 |
Patient Funding Alternativesinsidepfa.com
A rapidly growing, national organization partners with top academic medical centers to support vulnerable patients and families with innovative solutions |
156 |
| 37 |
Associated Home Careassociatedhomecare.com
Provider of reliable, competent, and affordable in-home care services in Eastern and Central Massachusetts since 1991, focusing on supporting seniors' independence and quality of life |
154 |
| 38 |
Kraft Power Corporationkraftpower.com
A family-owned business with 58 years of experience in designing, manufacturing, and servicing industrial engines, generators, and power systems for various applications |
147 |
| 39 |
Vassar Digitalvassardigital.ai
Develops generative AI and digital transformation applications, empowering businesses with low-code/no-code platforms for connected worker/customer ecosystems, enhancing customer experience and optimizing resource utilization. |
108 |
| 40 |
Zoomzoomtechnical.com
A national consultative staffing provider specializing in Hardware and Software Engineering for a wide range of industries, from startups to Fortune 100 companies |
83 |
| 41 |
Mide Technology Corporationlinktr.ee
Development of advanced engineering solutions through customer collaboration, transforming innovative ideas from concept to superior final products. |
69 |
| 42 |
Northeast Retirement Servicesnrstpa.com
Institutional services provider specializing in transfer agency, trust accounting, fund solutions, and fiduciary services with $14 trillion in assets under administration |
68 |
| 43 |
Custom Group USAcustomgroupusa.com
This company offers superior manufacturing services for Aerospace, Medical, Semi-Conductor, and Commercial industries through a team with diverse technological expertise |
59 |
| 44 |
Black Diamond Group Inc.bdboots.com
A leading manufacturer of performance footwear for work, occupational, tactical, and fire service, specializing in creating protective footwear for everyday job demands |
59 |
| 45 |
Custom Machine LLCcustommachineinc.com
Precision manufacturing facility producing advanced components worldwide, with CNC machining capabilities, ISO 9001 certification, and advanced CMM inspection for quality assurance |
37 |
| 46 |
M&K Engineering, Inc.arch-medical.com
A precision machining company specializing in manufacturing components for the medical and aerospace industry with extensive experience in various materials |
31 |
| 47 |
Primus Management Groupprimusmginc.com
Marketing and consulting firm specializing in outpacing competition with effective solutions, engaging campaigns, and impressive customer acquisition results, surpassing digital ads |
30 |
| 48 |
Woodco Machinery, Incwoodcomachinery.com
A machinery company based in MA with multiple locations in Eastern MA and RI Specializing in selling, renting, and supporting construction and paving equipment |
20 |
| 49 |
Paintzenpaintzen.com
Paintzen revolutionizes property painting with online quotes, color consultations, and professional services, matching homeowners with vetted contractors and delivering supplies |
14 |
| 50 |
SOSUDA TECHsosudatech.com
A global IT company providing innovative solutions across various industries, specializing in technologies such as IoT, AI, cybersecurity, and cloud computing |
8 |
| 51 |
Lionanofactorialenergy.com
Material manufacturing company specializing in advanced drop-in electrode material for lithium-ion batteries, enhancing capacity, cycle life, and enabling lighter, lower cost electronics and longer range vehicles |
5 |
| 52 |
AKAR Venturesakarventures.com
This company provides investment and incubation services for entrepreneurs in various technology sectors such as Big Data, IoT, SaaS, and marketing technology |
2 |
Turn this list into pipeline
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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