| # | Company | Employees |
|---|---|---|
| 1 | 47,247 | |
| 2 |
Booking Holdings (NASDAQ: BKNG)bookingholdings.com
Global provider of online travel & related services, offering booking options in over 220 countries through multiple brands, operating in 40+ languages worldwide |
18,737 |
| 3 |
FactSetfactset.com
Open financial data and software solutions for investment professionals worldwide providing access to analytics for crucial decision making and consistent client service. |
15,211 |
| 4 |
Terex Corporationterex.com
A global manufacturing company focused on building essential machines, improving lives, volunteering, and maintaining a safe, inclusive work environment |
8,109 |
| 5 |
GE Capitalgecapital.com
It provides financial solutions to support infrastructure investment, fostering relationships with customers and aligning with GE's industrial businesses for growth. |
7,955 |
| 6 |
EMCOR Group, Inc.emcorgroup.com
Leading in mechanical and electrical construction, EMCOR Group specializes in planning, installing, and maintaining sophisticated facility systems for various sectors with a skilled workforce |
3,333 |
| 7 |
Pepperidge Farmpepperidgefarm.com
A company specializing in beloved brands such as Goldfish crackers, Milano cookies, and bread products, driven by innovation and a legacy of passion for wholesome happiness |
2,121 |
| 8 |
ACCacc-corp.net
Provider of advanced technology solutions since 1991, specializing in Data Center, IT, and Business services for clients locally and globally |
1,914 |
| 9 |
Pricelinepriceline.com
Online travel platform offering affordable booking options, enabling millions to access and enjoy important life moments through technology. |
1,810 |
| 10 |
HEI Hotels & Resortsheihotels.com
A leading hotel investment and management company focused on developing passionate associates and delivering exceptional guest experiences in prime locations |
1,420 |
| 11 |
HomeServe USAhomeserve.com
Provider of home repair plans covering water, sewer, electrical, plumbing, HVAC emergencies, saving customers money and offering local service. |
1,345 |
| 12 |
Norwalk Public Schoolsnorwalkps.org
The company is accepting applications on its website Interested individuals can apply now for opportunities within the company |
1,136 |
| 13 |
Stew Leonard's Farm Fresh Foodstewleonards.com
Family-owned grocery business with multiple stores offering excellent customer service, quality products, and engaging in-store experiences for shoppers |
1,042 |
| 14 |
MMA (Marketing Management Analytics)mma.com
Provides unified marketing and commercial measurement, data management, software, and consulting services to enhance brand value and revenue growth. |
911 |
| 15 |
SDG Corporationsdgc.com
A global provider of technology and consulting services specializing in cybersecurity, identity, and risk management solutions for enterprises worldwide |
754 |
| 16 |
OMEGA Engineeringdwyeromega.com
Supplier of over 165,000 products for measuring temperature, humidity, flow, level, and pressure Specializing in thermocouples, gauges, data loggers, heaters, and more |
699 |
| 17 |
Norwalk-La Mirada Unified School Districtlinktr.ee
This organization strives to develop lifelong learners and productive citizens through personalized learning and high expectations, preparing students for success in various paths |
677 |
| 18 |
Fisher-Titus Medical Centerfishertitus.org
An independent not-for-profit community health system in Ohio, providing high-quality medical care, digital technology, and personalized services to residents |
656 |
| 19 | 622 | |
| 20 |
Viridian International Managementviridian.com
A sustainable lifestyle company providing eco-friendly energy and zero carbon travel opportunities, empowering individuals to do well by doing good |
609 |
| 21 |
GameChange Energygamechangeenergy.com
A manufacturer of solar racking systems, GameChange Solar offers fast installation, bankable quality, and high value through superior engineering and design |
542 |
| 22 |
Protos Securityprotossecurity.com
Premier security services provider in North America, offering guarding, off-duty, and remote services through a managed services model with innovative software solutions |
529 |
| 23 |
Financial Accounting Standards Boardfasb.org
Established in 1973, this organization sets financial accounting standards for public and private companies and not-for-profit organizations following Generally Accepted Accounting Principles (GAAP) |
507 |
| 24 |
CT State Norwalknorwalk.edu
A community college in Southwestern Connecticut offering affordable education, workforce development, vibrant community partnerships, and preparing students for global society |
504 |
| 25 |
Acosta Marketing Groupacostamarketinggroup.com
Specialized marketing agencies within Acosta Mosaic Group deliver strategic end-to-end marketing solutions connecting brands with consumers across North America |
487 |
| 26 |
Los Angeles County Registrar-Recorder/County Clerklavote.gov
A company that merged departments to create a single site for voter registration, record keeping, and document management with 700 employees |
480 |
| 27 |
MBI Inc.mbi-inc.com
A privately owned consumer products marketing company with annual sales over $300 million, specializing in jewelry, coins, books, and licensed merchandise |
439 |
| 28 |
Panzer Solutions LLCpanzersolutions.com
Specializing in technology and consulting services, this company delivers innovation, quality, and value for clients, bridging the gap between technology and clients' needs |
436 |
| 29 |
North American Powernapower.com
The company is a competitive supplier of electricity and natural gas, aiming to simplify the energy experience for customers with innovation and simplicity |
431 |
| 30 |
Mitsubishi HC Capital America, Inc.mhccna.com
A diversified specialty finance company offering commercial financing solutions in transportation, trade, funding services, technology financing, and asset-based lending |
369 |
| 31 |
Constellation Health Servicesconstellationhs.com
Family-centered organization offering various health services including home health, palliative care, hospice, private duty care, and therapy in community and home settings |
351 |
| 32 |
Onward Searchonwardsearch.com
Provides expert talent and innovative solutions for creative, marketing, and technology teams to achieve digital accessibility and AI transformation. |
326 |
| 33 |
TriRx Pharmaceutical Services, LLCtrirx.com
Leading global contract development and manufacturing organization for animal health and human pharmaceuticals, providing integrated development, manufacturing, and supply services. |
297 |
| 34 |
Hearst Connecticut Media Grouphearstmediact.com
A prominent local news operation in Connecticut with 22 newspapers, 21 websites, and over 200 journalists providing daily and weekly coverage |
222 |
| 35 |
Commonfundcommonfund.org
Empowers sophisticated investors with world-class outsourced CIO and private equity solutions, alongside financial management data and analytics, for achieving their investment goals. |
190 |
| 36 |
365 Data Centers365datacenters.com
365 Data Centers provides hybrid data center solutions in twenty edge markets, offering low latency fiber network, colocation, network, IP, DRaaS, and cloud services |
186 |
| 37 |
Koi CBDkoicbd.com
An industry leader in hemp wellness products, offering a variety of CBD and cannabinoid products made with USA-grown hemp for daily balance and wellness |
184 |
| 38 |
LBB Specialtieslbbspecialties.com
A leading North American distributor of specialty chemicals and ingredients, serving various industries with over $500 million in annual revenue |
182 |
| 39 |
City of Norwalknorwalkoh.com
A full service city offering top-notch public services, seeking stakeholder input, and undertaking projects to improve quality of life for residents |
179 |
| 40 |
JMG Insurance Corpjmg.com
The company is an independent insurance agency serving Connecticut, Massachusetts, New York, and New Jersey, offering personalized coverage options with affordable rates and great customer service |
178 |
| 41 |
Family & Children's Agencyfamilyandchildrensagency.org
Nonprofit organization specializing in human services focused on improving social and emotional wellbeing of clients at various stages of life |
178 |
| 42 |
The Maritime Aquarium at Norwalkmaritimeaquarium.org
A leading aquarium promoting marine education and conservation, hosting 450,000+ visitors annually, offering unique exhibits, education programs, and community engagement |
176 |
| 43 |
Shibumishibumi.com
The Shibumi Strategic Portfolio Management Platform streamlines strategy execution, decision-making, and alignment, freeing teams to focus on achieving measurable results efficiently |
166 |
| 44 |
Wilton Rewiltonre.com
A US life re-insurance company specializing in acquiring in force life insurance and annuities, providing risk capital, and implementing new business strategies |
166 |
| 45 |
Inspira Marketing Groupinspiramarketing.com
Experiential marketing agency creating award-winning brand experiences by humanizing data and deeply understanding consumers to connect brands and consumers. |
160 |
| 46 |
HMTX Industrieshmtx.global
A global flooring company based in Connecticut, offering diverse brands for construction and renovation markets with a focus on sustainable practices |
148 |
| 47 |
Shatterproofshatterproof.org
The company aims to prevent and treat substance use disorder by providing guidance and removing barriers to recovery |
146 |
| 48 |
Steven Winter Associatesswinter.com
Specializing in energy, sustainability, and accessibility consulting, SWA provides research & development, certification, and compliance services for commercial and residential built environments |
145 |
| 49 |
Federal Investfederalinvest.com
Federal Invest provides financial solutions for small & medium businesses to support growth, offering reliable funding & customized support for daily operations and opportunities |
134 |
| 50 |
CF Private Equitycfprivateequity.com
A private equity firm affiliated with Commonfund, offering diversified investment opportunities in buyouts, growth equity, venture capital, real assets, and sustainability strategies |
82 |
| 51 |
Earth Animal | B Corpearthanimal.com
A company dedicated to improving animal wellness through innovative health and wellness products that are humane, natural, and effective |
75 |
| 52 |
Halsteadhalsteadintl.com
A global materials manufacturer specializing in high-quality flooring and decorative building surfaces, dedicated to sustainability, transparency, and innovative products |
71 |
| 53 |
PDC International Corp.pdc-corp.com
A leader in shrink sleeve labeling & tamper evident neck banding machines, offering custom packaging solutions for various industries with innovative technology and expert guidance |
46 |
| 54 |
Beeby Clark+Meylerbeebyclarkmeyler.com
An award-winning Performance Marketing agency specializing in innovative paid, owned, and earned media solutions since 2005, with offices in New York and Stamford |
31 |
| 55 |
Heartwood Partnersheartwoodpartners.com
A middle market private equity firm with a unique approach focusing on lower-leverage investments, partnership with management, and strategic growth support |
28 |
| 56 |
Pierson & Smith, Inc.piersonandsmith.com
Independent insurance firm specializing in brokerage, consulting, and third party administration for corporate and individual clients, offering unique and tailored risk management solutions |
19 |
| 57 |
HOMELINE, INC.homsqr.com
Local home improvement company specializing in building, remodeling, and maintenance services Skilled professionals with years of experience dedicated to delivering quality products and outstanding service |
12 |
| 58 |
Canaan Technologycanaantechnology.com
Provider of installation, repair, and service for various technology systems to small businesses and residential clients with a focus on quality and customer satisfaction |
11 |
| 59 |
Integrated Glass Solutions LLCintegratedglasssolutions.com
The company is a comprehensive glass and glazing solutions provider, offering design, fabrication, and installation services for a complete turnkey experience |
10 |
| 60 |
Virtual Capitalvirtual-capital.io
Crypto investment management firm in Southwest Connecticut managing a digital asset fund investing in digital assets traded on public secondary markets |
3 |
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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