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The 100 largest companies in Princeton

Tamtam tracks 154 companies headquartered in Princeton. This list ranks the 100 largest by number of employees on LinkedIn, led by Princeton University, ETS and Indegene. Their median headcount is 476. Half of them were founded in 1999 or later.

🇺🇸 Princeton100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Princeton Universityprinceton.edu

A vibrant educational community focused on learning, service to the nation, and contributing to humanity through knowledge and action.

Higher Education 🇺🇸 Princeton 11,311 1746
2
ETSets.org

Development and delivery of trusted educational assessments and research to promote skill proficiency and lifelong learning opportunities worldwide.

Education Administration Programs 🇺🇸 Princeton 8,246 n/a
3
Indegeneindegene.com

A digital-first life sciences commercialization company that helps biopharmaceutical and medical device companies develop, market, and grow products effectively and efficiently

Business Consulting and Services 🇺🇸 Princeton 6,688 1998
4
CitiusTechcitiustech.com

A leading provider of healthcare technology services and solutions, serving various healthcare organizations worldwide to drive digital innovation and improve patient outcomes

IT Services and IT Consulting 🇺🇸 Princeton 6,627 2005
5
Covance

Global leader in drug development services, partnering with pharmaceutical and biotech companies to bring top prescription drugs to market and provide innovative solutions

Research Services 🇺🇸 Princeton 6,294 n/a
6
Integra LifeSciencesintegralife.com

Development and manufacturing of advanced medical technologies focused on surgical, neurologic, and regenerative treatments to improve patient outcomes.

Medical Equipment Manufacturing 🇺🇸 Princeton 3,846 n/a
7
Berlitz Corporationberlitz.com

A global leader in language and cultural training, offering immersive courses in over 50 languages for individuals, businesses, and organizations

Education 🇺🇸 Princeton 3,752 1878
8
Otsuka Pharmaceutical Companies (U.S.)otsuka-us.com

Commercialization of discovered and licensed pharmaceutical products in North America and global clinical development and registration of healthcare products.

Pharmaceutical Manufacturing 🇺🇸 Princeton 3,728 n/a
9
Neurealmneurealm.com

Partner for engineering, modernization, and technology operations, delivering digital platforms, AI, cybersecurity, and innovation to global enterprises.

IT Services and IT Consulting 🇺🇸 Princeton 3,338 1998
10
Flatworld Solutionsflatworldsolutions.com

An outsourcing services provider offering solutions across contact centers, healthcare BPO, software development, engineering services, mortgage support, and creative services globally

IT Services and IT Consulting 🇺🇸 Princeton 3,184 2004
11
Withumwithum.com

A modern advisory and accounting firm, leveraging technology to empower clients in today's business environment #InAPositionOfStrength

Accounting 🇺🇸 Princeton 3,169 1974
12
Compunnel Inc.compunnel.com

AI-native solutions integrating human potential with technology, delivering software development, cloud, AI/ML, cybersecurity, and recruitment services globally.

IT Services and IT Consulting 🇺🇸 Princeton 2,787 1994
13
Mathematicamathematica.org

Provides evidence-based solutions to improve program efficiency, reduce costs, and enhance measurable impact for better policy outcomes.

Research Services 🇺🇸 Princeton 2,465 n/a
14
Community Options, Inc.comop.org

A national nonprofit organization creating housing and employment opportunities for individuals with developmental disabilities, promoting community inclusion and independence

Non-profit Organizations 🇺🇸 Princeton 2,394 1989
15
Freyr Solutionsfreyrsolutions.com

Global leader providing comprehensive Regulatory solutions across life sciences industry, with expertise in Regulatory affairs, pharmacovigilance, quality management, and technology solutions

IT Services and IT Consulting 🇺🇸 Princeton 2,250 2011
16
LearningMatelearningmate.com

Provides technology and learning solutions to education institutions, leveraging digital, cloud, and data to build and streamline their digital infrastructure globally.

E-Learning Providers 🇺🇸 Princeton 2,186 2001
17
Onixonixnet.com

Cloud consulting company offering innovative solutions in data analytics, modernization, security, and AI/ML, with 20+ years of strategic cloud partnerships and expert global team

IT Services and IT Consulting 🇺🇸 Princeton 1,932 1992
18
Penn Medicine Princeton Healthprincetonhcs.org

A leading healthcare provider in New Jersey, offering comprehensive services with advanced technology and compassionate care from an exceptional medical staff

Hospitals and Health Care 🇺🇸 Princeton 1,874 n/a
19
GAVS Technologiesgavstech.com

Global IT services provider specializing in digital transformation through automation, AIOps, and DevOps to improve user experience, reduce resource utilization, and enhance governance

IT Services and IT Consulting 🇺🇸 Princeton 1,707 n/a
20
Department Of Armyonlinecareer360.com

Facilities services company specializing in various support services, located in Princeton, WV, United States

Facilities Services 🇺🇸 Princeton 1,597 n/a
21
Bioclinicaclario.com

Clario is a technology company specializing in clinical endpoint technology and medical imaging, aiming to innovate clinical trials and impact global healthcare positively

Pharmaceutical Manufacturing 🇺🇸 Princeton 1,478 1990
22
Zycuszycus.com

It provides Cognitive Procurement software, integrating AI to enhance decision-making, reduce risks, and improve compliance for global enterprises.

Software Development 🇺🇸 Princeton 1,404 2001
23
RCNastound.com

A provider of High-Speed Internet, Digital TV, and Phone services for residential and business customers, offering fiber-rich network, premium services, and 100% US-based customer support

Telecommunications 🇺🇸 Princeton 1,316 1993
24
Servion Global Solutionsservion.com

Specialist in CX solutions using AI and cloud technologies, helping businesses elevate customer and employee experiences, optimizing contact centers globally

IT Services and IT Consulting 🇺🇸 Princeton 1,193 1995
25
Intelligroupus.nttdata.com

Global provider of consulting, technology, and outsourcing services specializing in business process improvement, ERP implementations, E-business solutions, testing, and infrastructure support

IT Services and IT Consulting 🇺🇸 Princeton 1,184 1987
26
Munich Reinsurance America, Inc.munichreamerica.com

A leading US-based insurance and reinsurance company providing financial stability and custom-tailored products to help clients stay competitive in the market

Insurance 🇺🇸 Princeton 1,045 1917
27
PharmaACEpharmaace.com

A global life sciences consulting company providing data analytics solutions for efficient commercialization and development of pharmaceutical products, with expertise in forecasting and market research

Business Consulting and Services 🇺🇸 Princeton 996 2013
28
SGS Consultingsgsconsulting.com

A certified minority-owned enterprise offering workforce solutions through innovative talent management strategies, high-volume staffing, payroll services, and SOW management

Staffing and Recruiting 🇺🇸 Princeton 972 1997
29
Diverse Lynxdiverselynx.com

A certified company specializing in helping clients with diversity spending on staffing and contingent workforce services across various industries globally

Professional Services 🇺🇸 Princeton 949 2002
30
i-exceedi-exceed.com

A leading digital banking platform provider offering innovative solutions for banks worldwide, focused on user-centric design, security, and scalability

Financial Services 🇺🇸 Princeton 842 2011
31
International Schools Servicesiss.edu

Support international schools globally through school operations, educator recruitment, professional development, school supplies, and leadership diversity initiatives.

Education Administration Programs 🇺🇸 Princeton 837 1955
32
Kyowa Kirin, Inc.- U.S.kkna.kyowakirin.com

Development and commercialization of novel biotechnological medicines targeting hard-to-treat diseases with significant patient impact in North America.

Pharmaceutical Manufacturing 🇺🇸 Princeton 825 n/a
33
ALCalc.com

A leading provider of first-party data solutions, mailer and catalog services, enabling clients to drive profits and build consistent connections with customers

Advertising Services 🇺🇸 Princeton 807 1978
34
Princeton Plasma Physics Laboratory (PPPL)pppl.gov

A US Department of Energy National Laboratory focused on developing fusion energy, with a shift towards microelectronics, quantum information science, and sustainability

Research Services 🇺🇸 Princeton 800 n/a
35
Information Security Media Group (ISMG)ismg.io

Largest media group focused on information security and risk management, providing tailored education, research, news, and global summits for cybersecurity professionals.

Technology, Information and Media 🇺🇸 Princeton 767 2006
36
Tekskills Inc.tekskillsinc.com

Global technology consulting and development company offering innovative IT solutions, digital transformation services, and IT infrastructure management to Fortune 500 companies worldwide

IT Services and IT Consulting 🇺🇸 Princeton 696 2003
37
QWay Technologiesqwayhealthcare.com

Global outsourcing provider specializing in revenue cycle management, customer support, healthcare solutions, and IT services with innovative technology and 24/7 support for international clients

Outsourcing and Offshoring Consulting 🇺🇸 Princeton 696 2010
38
TOEFLets.org

Provider of English language proficiency assessments for university admissions worldwide, including TOEFL iBT® and TOEFL® Essentials™ tests in various formats

Education Administration Programs 🇺🇸 Princeton 685 n/a
39
Infopro Learning, Incinfoprolearning.com

A workforce performance transformation organization dedicated to delivering measurable performance impact, creating engaging learning experiences, and driving sustainable operational efficiency for clients

Professional Training and Coaching 🇺🇸 Princeton 626 1994
40
Autism Speakslinktr.ee

Dedicated to promoting solutions for individuals with autism and their families, striving for a world where everyone can reach their full potential

Non-profit Organizations 🇺🇸 Princeton 624 2005
41
Amicus Therapeuticsbiomarin.com

Global biotechnology company developing innovative medicines for patients with rare metabolic diseases, emphasizing patient collaboration and cutting-edge technology.

Biotechnology Research 🇺🇸 Princeton 615 2002
42
RWJFrwjf.org

This organization focuses on improving health and health equity in the US by creating a Culture of Health rooted in equity

Non-profit Organizations 🇺🇸 Princeton 609 1972
43
Trimble Transportationtransportation.trimble.com

Provides AI-powered transportation management technology connecting shippers, carriers, brokers, and 3PLs to improve freight movement efficiency and safety.

Software Development 🇺🇸 Princeton 596 n/a
44
Toyota Motor Manufacturing, Indiana, Inc.tourtoyotaindiana.com

An automotive company located in Indiana, manufacturing vehicles with a focus on quality and innovation in the automotive industry

Motor Vehicle Manufacturing 🇺🇸 Princeton 590 1996
45
ELS Language Centersels.edu

A leading English language school offering personalized instruction, state-of-the-art technology, testing services, university admission assistance, and experienced TESOL-certified teachers

Education Administration Programs 🇺🇸 Princeton 589 n/a
46
Munich Re Specialty - North Americamunichre.com

Specializing in property and casualty insurance, offering tailored solutions through brokers, underwriters, and innovative risk management for complex needs

Insurance 🇺🇸 Princeton 545 n/a
47
The Digital Group Incthedigitalgroup.com

Global provider of comprehensive IT services, product engineering, data solutions, and enterprise information management Specializing in innovation, excellence, and long-term client relationships

IT Services and IT Consulting 🇺🇸 Princeton 544 1999
48
Atyeti Incatyeti.com

This firm provides business and technology consulting services, focusing on digital transformation, automation, and data solutions for various industries globally.

IT Services and IT Consulting 🇺🇸 Princeton 502 2008
49
Institute for Advanced Studyias.edu

A renowned center for theoretical research housing top post-doctoral researchers, scholars, and eminent Faculty dedicated to advancing knowledge across sciences and humanities

Higher Education 🇺🇸 Princeton 479 1930
50
WVU Medicine Princeton Community Hospitalwvumedicine.org

Specializing in healthcare services for the two Virginias region, this company leads the way in providing top-notch medical care

Hospitals and Health Care 🇺🇸 Princeton 476 n/a
51
Princeton Public Schoolsisd477.org

A dynamic community offering excellent schools, recreation, and industrial opportunities, located along Minnesota's scenic Rum River, fostering quality of life for residents

Primary and Secondary Education 🇺🇸 Princeton 456 1858
52
TRAC Intermodaltracintermodal.com

North America's top intermodal equipment provider, marine chassis fleet, extensive facility network, manages nine chassis pools across the United States.

Truck Transportation 🇺🇸 Princeton 454 1968
53
NIKSUNniksun.com

delivers real-time, forensics-based cyber security and network monitoring solutions. Focuses on securing critical infrastructure, optimizing service delivery, reducing compliance risks.

Computer and Network Security 🇺🇸 Princeton 454 1997
54
Taiho Oncology, Inc.taihooncology.com

Specializing in developing orally administered anti-cancer drugs, this company markets medicine for various tumor types to improve the lives of cancer patients and their families

Pharmaceutical Manufacturing 🇺🇸 Princeton 442 2002
55
Gramenergramener.com

Design-led data science firm leveraging AI/ML, automated analysis, and visual intelligence to provide compelling data stories and insights through a low-code analytics platform

Data Infrastructure and Analytics 🇺🇸 Princeton 441 2010
56
SciTecscitec.com

Innovative company providing integrated technical support and cutting-edge sensor systems for defense, government, and industrial applications, with a focus on information dominance

Defense and Space Manufacturing 🇺🇸 Princeton 411 1979
57
Princeton Theological Seminaryptsem.edu

A graduate school in the Presbyterian tradition providing education for those called to ministry, shaping future religious leaders with rigorous scholarship and faith

Higher Education 🇺🇸 Princeton 394 1812
58
DataBeatdatabeat.io

A consulting company specializing in media, AdTech, and analytics solutions for enterprises Services include AdOps, yield optimization, data analytics, and custom development

Business Consulting and Services 🇺🇸 Princeton 373 2017
59
AidenAIaidenai.com

This company helps businesses achieve growth by combining human efforts with AI-powered solutions to accelerate digital transformation through their AidenAI Digital Acceleration Platform

Technology, Information and Internet 🇺🇸 Princeton 367 2023
60
SysMindsysmind.com

Provider of information technology services, consulting, and solutions including application development, business intelligence, quality assurance, and integration services for various industries and government agencies

Technology, Information and Internet 🇺🇸 Princeton 352 1999
61
ExpertCallersexpertcallers.com

Global consulting and outsourcing company specializing in providing operational and strategic support to call center businesses worldwide ISO/IEC 27001:2013 certified

Outsourcing and Offshoring Consulting 🇺🇸 Princeton 348 2002
62
Diversity Vuteq, LLC

The company specializes in internal logistics, just-in-time supply, small parts sequencing, and plastic injection molding parts manufacturing for Toyota Motor Manufacturing

Motor Vehicle Manufacturing 🇺🇸 Princeton 340 n/a
63
Impact XMjackmorton.com

A global event and experiential marketing agency providing tailored brand experiences through trade shows, conferences, activations, and digital engagements with a diverse team of experts

Events Services 🇺🇸 Princeton 333 1973
64
UroGen Pharmaurogen.com

Innovative biotech company developing novel solutions using RTGel technology for specialty cancers and urologic diseases, with a collaborative drive for bold results

Biotechnology Research 🇺🇸 Princeton 330 2004
65
Techsol Life Sciencestechsollifesciences.com

This company provides integrated clinical development, medical affairs, and post-marketing surveillance solutions to global biopharmaceutical and medical device companies to expedite treatments to market

Pharmaceutical Manufacturing 🇺🇸 Princeton 326 2010
66
SOSVsosv.com

Global venture capital firm specializing in early stage startup development programs focused on deep technology for the betterment of humanity and the planet

Venture Capital and Private Equity Principals 🇺🇸 Princeton 321 n/a
67
WonderBotzwonderbotz.com

An award-winning firm offering RPAaaS, F&A solutions, cloud services, training, and professional services to restore humanity in business

IT Services and IT Consulting 🇺🇸 Princeton 319 2017
68
Eden Autismedenautism.org

A not-for-profit organization providing autism information, education, training, and support through early intervention, education, employment training, and residential services

Individual and Family Services 🇺🇸 Princeton 318 1975
69
The Bonner Foundationbonner.org

A private philanthropic organization in Princeton, NJ focusing on advancing higher education through community engagement, college access programs, and student success initiatives

Non-profit Organizations 🇺🇸 Princeton 315 1990
70
Wachusett Mountain Ski Areawachusett.com

A ski resort in Massachusetts with easy access from major cities, offering skiing, snowboarding, events, weddings, and fall festivals

Recreational Facilities 🇺🇸 Princeton 312 n/a
71
Ampstekampstek.com

A global IT consulting company providing tech and digital professionals to clients worldwide, focused on building long-term relationships and promoting diversity and inclusion in the workplace

IT Services and IT Consulting 🇺🇸 Princeton 295 2014
72
GRE® General Testets.org

A provider of the GRE® General Test for business and graduate school admissions worldwide, offering a test-taker-friendly design and ScoreSelect® option

Education Administration Programs 🇺🇸 Princeton 295 n/a
73
GuruSchools LLCguruschools.com

Provider of IT Consulting, Healthcare IT, Training, and Outsourcing services Offers premier education, mentorship, job assistance, and project support for IT professionals

IT Services and IT Consulting 🇺🇸 Princeton 284 n/a
74
Global Benefits Group (GBG)gbg.com

Global insurance service company providing health, life, disability, and travel insurance to multinational corporations, expatriates, students, and high net-worth individuals worldwide

Insurance 🇺🇸 Princeton 274 1981
75
ARDEM Incorporatedardem.com

This company specializes in providing business process outsourcing and automation services to improve operational efficiency and reduce costs for established businesses

Outsourcing and Offshoring Consulting 🇺🇸 Princeton 266 2004
76
V R Della Infotech INC- V R Della groupvrdella.com

IT consulting and staffing firm providing solutions in niche areas for various industries, with a global presence in IT, industrial, and healthcare sectors

IT Services and IT Consulting 🇺🇸 Princeton 259 2012
77
PURSUIT SOFTWAREpursuitsoftware.com

IT consulting firm specializing in industry-specific solutions and technology horizontals Services include niche application development, quality assurance, testing, and IT process improvement

IT Services and IT Consulting 🇺🇸 Princeton 248 1997
78
Artezioartezio.com

Custom software development company providing robust solutions and IT consulting services globally, specializing in various industries with over 20 years of experience

Software Development 🇺🇸 Princeton 224 2000
79
Avistosavistos.com

Avistos offers innovative services in Computer Vision, Talent Acquisition, Business Transformation, and Training & Development, with a focus on maximizing recruiting efficiency through RPO On-Demand

IT Services and IT Consulting 🇺🇸 Princeton 222 2015
80
CompatibLcompatibl.com

A specialized software vendor offering risk, limits, and regulatory capital solutions to top financial firms with a team focused solely on trading and risk management

Software Development 🇺🇸 Princeton 205 2003
81
Callaway Henderson Sotheby's International Realtysothebysrealty.com

Premier real estate firm in central New Jersey, specializing in residential brokerage with a focus on one-on-one marketing and state-of-the-art technology for faster sales

Real Estate 🇺🇸 Princeton 198 n/a
82
AbsoluteIT (Certified MBE, WBE, WOSB)absoluting.com

The company provides strategic IT staffing, consulting, and recruitment process outsourcing services, offering expert administration and a global perspective to clients

Staffing and Recruiting 🇺🇸 Princeton 191 2006
83
Miele USAmieleusa.com

A family-run company focused on premium domestic appliances and commercial machines, driven by the principle of "Forever Better" for employees and customers

Manufacturing 🇺🇸 Princeton 186 1899
84
Penn Medicine Princeton House Behavioral Healthprincetonhouse.org

Provides psychiatric and substance use disorder treatment for adults, inpatient detox, and outpatient telehealth programs for children, adolescents, and adults

Hospitals and Health Care 🇺🇸 Princeton 183 1971
85
Flatworld Mortgage Solutionsflatworldmortgage.com

Specializing in mortgage processing support for lenders, banks, and credit unions, with services including pre-processing, closing, post-closing, and review for Title/Appraisal Companies

Outsourcing and Offshoring Consulting 🇺🇸 Princeton 182 2009
86
Aplomb Technologies Incaplombtek.com

Global management consulting and technology services firm with expertise in all industries, helping clients achieve high-performance through collaboration and talent development

IT Services and IT Consulting 🇺🇸 Princeton 181 n/a
87
DWP Global Corpdwpglobalcorp.com

A specialized company providing Data Warehousing, BI, and Big Data services for Fortune 500 and mid-market clients globally for over 15 years

IT Services and IT Consulting 🇺🇸 Princeton 181 2008
88
Theradex Oncologytheradex.com

A cancer research company with 40 years of experience, utilizing knowledge, innovation, and proactive planning to identify and deploy promising therapies worldwide

Biotechnology Research 🇺🇸 Princeton 177 1982
89
Xybion Digitalinstem.com

Xybion offers digital acceleration solutions for regulated industries with end-to-end business process management, real-time monitoring, compliance, and personalized app configuration on a single platform

Software Development 🇺🇸 Princeton 177 1977
90
Kardigankardigan.bio

Developing medicines targeting cardiovascular disease mechanisms to provide functional cures beyond symptom management through patient-driven clinical trials.

Biotechnology Research 🇺🇸 Princeton 176 2023
91
CFMAcfma.org

An organization providing construction financial professionals with career development, networking, education, and connection programs through chapters, conferences, and online learning

Non-profit Organizations 🇺🇸 Princeton 175 1981
92
Oxygenoxygen.us

A modern financial platform for consumers and small businesses, focused on simplicity, fairness, and embracing those pushing boundaries in the 21st-century economy

Financial Services 🇺🇸 Princeton 172 2017
93
Princeton Radiologyprincetonradiology.com

A regional leader in diagnostic imaging with board-certified radiologists, advanced technology, and compassionate care for patients and referring physicians

Medical Practices 🇺🇸 Princeton 170 1972
94
Archimedis Digitalarchimedis.io

Global IT services company providing digital products and solutions exclusively for Life Sciences companies, specializing in digital transformation and solving complex business challenges

IT Services and IT Consulting 🇺🇸 Princeton 169 n/a
95
Berlitz USbit.ly

The company offers cultural consulting, language training, business communication skills, global leadership training, and programs for children, teens, and governmental institutions

Education Administration Programs 🇺🇸 Princeton 168 1878
96
New Jersey Hospital Associationnjha.com

A leading not-for-profit trade organization in New Jersey, providing support and services to healthcare providers for quality, affordable, and accessible healthcare

Hospitals and Health Care 🇺🇸 Princeton 168 1918
97
Access Healthcare LLCaccesshealthcarestaffing.com

A locally owned staffing company in New Jersey focused on providing satisfaction to clients and nursing staff through personalized matching

Staffing and Recruiting 🇺🇸 Princeton 166 2008
98
NetElixirnetelixir.com

An independent growth marketing agency specializing in driving profitable growth for e-commerce businesses through AI-powered digital marketing strategies across multiple channels

Marketing Services 🇺🇸 Princeton 163 2004
99
Makro Technologies Inc.makrotech.com

An IT & Consulting Services company established in 1996, providing customized software solutions with deep industry expertise, partnerships with leading vendors, and commitment to quality

Staffing and Recruiting 🇺🇸 Princeton 163 n/a
100
Thinking About Thinkingthinkingaboutthinking.org

Organizes conferences and media platforms focused on advancing and sharing innovative ideas about intelligence, neuroscience, AI, and entrepreneurship.

Education 🇺🇸 Princeton 162 2019

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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.

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