| # | Company | Employees |
|---|---|---|
| 1 |
Global Medical Responseglobalmedicalresponse.com
A leading provider of emergency and patient relocation services with a team of 36,000 members delivering compassionate medical care worldwide |
15,000 |
| 2 |
CROSSMARKcrossmark.com
This company offers service-based solutions for brands to grow in-store and online, providing sales, marketing expertise, actionable insights, and new retail opportunities |
9,655 |
| 3 |
Calibercaliber.com
A purpose-driven team of automotive service providers offering collision repair, mechanical services, and glass repair to restore customers' lives safely |
8,437 |
| 4 |
Lewisville ISDlisd.net
A premier school system in Texas with a commitment to empowering all students with knowledge, skills, and confidence for their futures |
4,713 |
| 5 |
Overhead Door Corporationohdcorporation.com
This company is the industry leader in upward-acting doors and electric door openers, with a focus on product innovation, quality, and customer support |
3,326 |
| 6 |
Orthofixorthofix.com
A global spine and orthopedics company with a wide range of products, including biologics, spinal hardware, orthopedic solutions, and surgical navigation systems Offering solutions in 68 countries |
2,059 |
| 7 |
Responsive Education Solutionsresponsiveed.com
A non-profit organization in Texas and Arkansas providing dropout recovery schools, classical academies, STEM programs, and virtual school options to over 20,000 students |
1,314 |
| 8 |
Prime Controlsprime-controls.com
Industrial Automation company offering sole source solutions for system integration, I & C construction, project design, maintenance, and factory support services Customer-focused with commitment to excellence |
1,095 |
| 9 |
Med-Trans Corporationmed-trans.net
A national medical transport provider focused on professional relationships with health systems, offering solutions for successful patient outcomes within a family-based culture |
1,026 |
| 10 |
Horizon Health Corporationhorizonhealth.com
Behavioral health management company specializing in building, managing, and improving psychiatric programs in hospital settings with extensive experience and a proven track record of success |
825 |
| 11 |
Self Opportunity, Inc.selfopportunity.com
A recruitment solutions company providing services for various industries such as Restaurant, Sales, Medical, Technology, and Accounting to fill staffing needs cost-effectively |
680 |
| 12 |
City of Lewisvillecityoflewisville.com
A dynamic suburban community in North Texas, offering quality schools, safe neighborhoods, and family-friendly recreation options, while providing effective municipal services |
679 |
| 13 |
TechStar Grouptechstargroup.com
TechStar Group is a Dallas-based IT services firm specializing in product development, business solutions, and customer success through innovative technology and business process improvement |
597 |
| 14 |
Stearns Lending, Inc
A lending company acquired by Guaranteed Rate, no longer in operations Equal Housing Lender based in Chicago |
595 |
| 15 | 545 | |
| 16 |
US Home Systemsushomesystems.com
Specializing in home improvement products, this company designs, sells, and installs custom kitchen and bathroom cabinet refacing products, as well as organizational storage systems |
481 |
| 17 | 464 | |
| 18 |
Guardian Flight, LLCguardianflight.com
Provider of air medical services, offering safe, compassionate transportation of patients in remote areas to larger hospitals with highly skilled teams and advanced equipment |
459 |
| 19 |
BayMark Health Servicesbaymark.com
A leading provider of medication-assisted treatment for substance use disorders, offering a range of services for recovery and behavioral health support |
449 |
| 20 |
Protech Automotive Solutionsprotechautomotivesolutions.com
Industry-leading on-site diagnostic scanning and calibration services, focused on safety and quality, backed by over 25 years of expertise |
427 |
| 21 |
MedMark Treatment Centerslinktr.ee
Dedicated to assisting individuals with opioid addiction through medication-assisted treatment, counseling, and support to achieve a healthier, drug-free lifestyle |
391 |
| 22 |
Parkway Construction & Architectureparkwayconstruction.com
A construction company founded on values of integrity and customer trust, specializing in national growth, design-build projects, and preconstruction services for efficient rollout programs |
375 |
| 23 |
Lawn Jockey Lawn Careyourlawnjockey.com
A lawn maintenance company serving residents in Lewisville Flower Mound and Highland Village, with a focus on quality service and customer care |
372 |
| 24 |
StoneGate Senior Livingstonegatesl.com
This company provides supported services to senior living and care properties in Oklahoma and Texas to help residents achieve independence and quality outcomes |
371 |
| 25 |
EMS Management & Consultants, Inc.emsmc.com
EMS|MC is a leading billing services provider specializing in emergency medical services in the US They offer revenue cycle management, reporting, and consulting nationwide |
353 |
| 26 |
Summit Truck Grouprushtruckcenters.com
A privately-held company operating 24 truck and bus dealerships servicing various commercial truck and bus brands, offering lease, rental, and maintenance services |
344 |
| 27 |
Viacore Solutionsviacore.com
A company specializing in belting solutions, previously known as All-State Belting in the US and Belterra in Canada #ViacoreSolutions |
344 |
| 28 |
TriMark Strategicstrategicequipment.com
Comprehensive foodservice equipment solutions provider offering services from concept and design to installation and product replenishment nationwide with industry expertise |
334 |
| 29 |
Spring Creek Barbequespringcreekbarbeque.com
A Texas-based restaurant company specializing in barbecue, located in Lewisville |
333 |
| 30 |
First Choice Emergency Roomfcer.com
Revolutionizing adult and pediatric emergency medical services with convenient, neighborhood access Fully equipped facilities staffed with board-certified physicians and emergency trained nurses |
319 |
| 31 |
Lemcon Inclemcon.net
A leading telecommunications network infrastructure service provider, dedicated to delivering excellent outcomes for customers with a focus on safety, quality, and innovation |
295 |
| 32 |
Texas-New Mexico Power (TNMP)tnmp.com
Electricity transmission and distribution service provider in Texas, serving over 260,000 homes and businesses with reliable power connections, meter readings, and outage responses |
288 |
| 33 |
Overhead Door™ Brandoverheaddoor.com
A leading provider of garage doors and openers, offering quality products and reliable service for both residential and commercial purposes for a century |
187 |
| 34 |
VIVA Railings LLCvivarailings.com
Provider of complete railing solutions for commercial spaces, offering innovative metal, glass, and decorative panel systems with in-house fabrication and design-assist solutions |
182 |
| 35 |
ARTERIORS Homearteriorshome.com
Global design company offering premium lighting, furniture, wall décor, and accessories with a focus on craftsmanship and creativity. |
179 |
| 36 |
Talent Tree Agencyttagency.com
Event staffing agency specializing in beverage marketing, founded in 2010 and 100% woman owned Offers transparency through custom software for talent and clients |
179 |
| 37 |
Bridal Boutiquebridalboutiquelewisville.com
Family owned bridal salon in DFW since 1990, offering largest selection of wedding gowns, bridesmaid dresses, accessories, and mother of the occasion dresses |
162 |
| 38 |
★ Cleaning for a Reason ★cleaningforareason.org
A non-profit organization partners with cleaners to provide free house cleaning to cancer patients, helping over 54,000 individuals since 2006 |
160 |
| 39 |
Coram Deo Academycoramdeoacademy.org
A private school in Dallas/Ft Worth area offering the University-Model® system, focused on training children to be ethical leaders and wise thinkers |
160 |
| 40 |
Communities In Schools of North Texascisnt.org
This organization provides school-based dropout prevention programs in North Texas, empowering students to stay in school and achieve success in life |
159 |
| 41 |
Bright Realtybrightrealty.com
They focus on developing, owning, and operating long-lasting residential and commercial communities with a commitment to integrity and dedication |
153 |
| 42 |
National Indoor RV Centers | NIRVCnirvc.com
A company founded by RV enthusiasts to simplify RV ownership through buying, selling, repairing, storing, washing, and detailing services at multiple locations |
151 |
| 43 |
Metl-Spanmetlspan.com
A pioneering industry innovator manufacturing high-quality insulated building panel products for commercial, industrial, and cold storage industries, focused on energy-efficient solutions |
150 |
| 44 |
Auto Rescue Solutions
Nationwide roadside assistance provider similar to Uber, assisting motorists across the country with resources in major metropolitan regions |
150 |
| 45 |
DynaGriddynagrid.com
Specializing in construction services for the utilities market, DynaGrid offers sitework and foundation work for substations, switch stations, and transmission lines |
146 |
| 46 |
Semos Cloudsemoscloud.com
Comprehensive platform enhancing employee recognition, communication, wellbeing, and skills to boost engagement, retention, and productivity in large companies. |
122 |
| 47 |
Essilor Instruments USAessilorinstrumentsusa.com
A global leader in providing innovative solutions and technologies for opticians and optometrists to enhance patient care and build trustful relationships |
109 |
| 48 |
Companion Animal Healthcompanionanimalhealth.com
Animal health company focused on innovative solutions to improve quality of life for animals, offering products, education, and customer support to enhance veterinary care |
91 |
| 49 |
Texplorers Inctexplorers.com
The company provides top technology talent and professional services to drive successful digital transformation efforts in niche areas like data analytics and AI |
80 |
| 50 |
Consure Medicalconsuremedical.com
An emerging medical device company focused on developing critical care technologies, with a flagship device for managing fecal incontinence in bedridden patients |
52 |
| 51 |
Apparel Logisticsapparel-logistics.com
A company offers various logistics services and technology solutions worldwide, including transportation management, warehousing, customs clearance, VMI, and value-added services for apparel |
52 |
| 52 |
US Remodelershomedepot.com
A leading home improvement company specializing in sales, manufacturing, and installation of quality home improvement products, with operations nationwide |
51 |
| 53 |
United Power Groupupg.energy
Dedicated group of industry experts helping clients prepare for a sustainable future by customizing energy solutions tailored to their needs |
50 |
| 54 |
E-MetroTelemetrotel.com
A Unified Communication company offering voice, video, and messaging solutions for businesses by converting existing phones into VoIP and integrating them with software |
48 |
| 55 |
Jumpp Logistics, LLCjumpplogistics.com
An established courier and logistics company based in North Texas serving small and large firms across 40+ major US markets |
47 |
| 56 |
Core IT Technologiescoreit-tech.com
A company offering tailored services to drive business growth by addressing the challenges and goals of modern enterprises effectively |
38 |
| 57 |
Sloka Technologiessloka.com
Strategic provider of business consulting and IT services, specializing in tailored solutions for efficiency in On-Premise and Cloud environments |
27 |
| 58 |
ZenithInfotek LLCzenithinfotek.com
Specializing in staffing services, we aim to be the top choice for clients and candidates by providing high-quality and efficient service |
16 |
| 59 |
Ideal Source Incidealsource.net
The company provides IT services, solutions, and consulting, specializing in application, business intelligence, quality assurance, and web applications for various industries and government agencies |
15 |
| 60 |
NENI TECHSYSTEMS INCnenitechsystems.com
A global IT solutions provider founded in 2020, offering software development, business solutions, consulting, system integration, business intelligence, and cloud computing services |
11 |
| 61 |
Technopathz Inctechnopathz.com
A global IT consulting company providing high value business solutions, specializing in custom software development, maintenance, and IT consulting services |
7 |
| 62 |
Continental Hub for Info Processing Incchipinc.net
Professional services, marketing, and technology consulting firm specializing in Enterprise Information Management, Big Data, Cloud Computing, API Management, and IT Infrastructure |
4 |
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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