| # | Company | Employees |
|---|---|---|
| 1 | 12,096 | |
| 2 |
Huntsman Corporationhuntsman.com
A global chemical company focused on shaping a sustainable future through innovative products that enhance energy efficiency and reduce waste and emissions |
6,996 |
| 3 |
Stradastradaglobal.com
specializes in simplifying workforce management with accurate payroll and technology solutions for over 1,400 customers worldwide |
6,422 |
| 4 |
Lone Star Collegelonestar.edu
This institution provides high-quality, low-cost academic transfer and career training education for over 80,000 students each semester in Houston |
6,223 |
| 5 |
Conn's HomePlusconns.com
Retailer offering top name brands with financing options for electronics, appliances, furniture, and mattresses Committed to superior customer experiences and employee development |
3,415 |
| 6 |
Anadarko Petroleum Corporationoxy.com
An independent oil and natural gas exploration company with a global presence, focused on acquiring and developing vital energy resources |
3,332 |
| 7 |
ChampionXchampionx.com
A company with over a century of experience providing innovative solutions and global supply chain capabilities for the oil and gas industry |
3,260 |
| 8 |
Sterling Infrastructure, Inc.strlco.com
The company focuses on building infrastructure solutions across the United States, specializing in E-Infrastructure, Building, and Transportation projects |
2,492 |
| 9 |
Immunotecimmunotec.com
The company focuses on providing high-quality nutritional supplements based on science and research to enhance health and performance globally |
2,443 |
| 10 |
The US Oncology Networkusoncology.com
A network of over 2,300 providers collaborates to deliver integrated cancer care close to home, supported by resources and expertise |
2,393 |
| 11 |
SI Groupsiigroup.com
Provides performance additives and intermediates for pharmaceuticals, plastics, oil and gas, tires, enhancing efficacy and productivity in manufacturing. |
1,988 |
| 12 |
Webber, a Ferrovial companyferrovial.com
A leading construction company specializing in commercial, heavy civil, and waterworks projects, providing intelligent solutions while prioritizing safety and community impact |
1,894 |
| 13 |
Indorama Ventures: Indovinyaindovinya.indoramaventures.com
A global producer of chemical intermediates and surfactants with a focus on sustainable solutions for various industries, part of a leading petrochemical group |
1,835 |
| 14 |
Kraton Corporationkraton.com
Development and production of biobased chemicals and specialty polymers serving over 800 customers globally with sustainable, innovative solutions. |
1,399 |
| 15 |
Bilfinger North Americabilfinger.com
A leading construction and maintenance provider offering turnkey solutions for industrial and commercial facilities, focusing on enhancing efficiency and lowering operational costs |
1,331 |
| 16 |
Cudd Energy Servicescuddenergyservices.com
The company offers various technical oilfield services worldwide, including pressure pumping, hydraulic workover, coiled tubing, nitrogen services, and well control solutions |
1,277 |
| 17 |
BJ Energy Solutionsbjenergy.com
An industry leader in hydraulic fracturing solutions for upstream oil and gas companies, focusing on innovation, sustainability, and emission reductions |
1,249 |
| 18 |
Howard Hughes Communitieshowardhughes.com
Develops and operates premier large-scale master planned communities and mixed-use real estate across multiple states using innovative placemaking and strategic market positioning. |
1,230 |
| 19 |
Scientific Drillingscientificdrilling.com
Global provider of high accuracy wellbore placement and drilling solutions for Oil & Gas, Geothermal, Mining, and more industries Dedicated to superior customer experience |
1,218 |
| 20 |
LGI Homeslgihomes.com
A leading homebuilder in the USA offering affordable homes in 20 states across 35 markets, serving over 60,000 families Publicly listed on NASDAQ |
1,211 |
| 21 |
Zinnovzinnov.com
Management consultancy specializing in global capability centers, mergers and acquisitions advisory, private equity value creation, market expansion, open innovation, and digital transformation. |
1,114 |
| 22 |
Western Midstreamwesternmidstream.com
A midstream service provider delivering essential energy and inputs worldwide, focusing on reliability, cost efficiency, safety, and environmental protection |
986 |
| 23 |
Quantixquantixscs.com
A leading provider of end-to-end support to chemical companies, offering nationwide services, advanced technologies, and real-time monitoring for optimal business management |
894 |
| 24 |
HMT LLChmttank.com
Global leader in aboveground storage tank solutions, offering innovative products and services to optimize tank operations and improve efficiency, productivity, and profitability worldwide |
878 |
| 25 |
Veriforceveriforce.com
A global leader in supply chain risk management solutions, Veriforce empowers organizations to enhance safety, compliance, and performance across their supply chains |
751 |
| 26 |
TWFG Insurance (The Woodlands Financial Group)twfg.com
An independent insurance provider prioritizing customer care, offering tailored coverage to individuals in Texas, Louisiana, and nationally |
698 |
| 27 |
Allegiance Staffing LLCallegiancestaffing.com
A staffing firm with 41 branches in 14 states, specializing in providing staffing solutions and achieving high client and talent satisfaction ratings since 2009 |
686 |
| 28 |
Emerus Holdings, Inc.emerus.com
A national leader in neighborhood hospitals, providing comprehensive healthcare services with top-notch quality, empathy, and innovation through partnerships with leading health systems |
672 |
| 29 |
Crane ChemPharma & Energycranecpe.com
Designs and manufactures high-performance valves, pipes, actuation, and fittings for challenging applications in industries such as chemical processing and power generation |
663 |
| 30 |
Kodiak Gas Serviceskodiakgas.com
A leading provider of natural gas contract compression services in the US, offering efficiency, reliability, innovation, and 24/7 technical support to customers |
639 |
| 31 |
Excelerate Energyexcelerateenergy.com
Pioneering provider of floating LNG solutions, offering integrated services throughout the LNG value chain for rapid, reliable delivery to global customers Headquarters in Texas |
611 |
| 32 |
Newfield Exploration
An independent energy company focused on domestic, liquids-rich unconventional resource plays in the US, delivering operational excellence, value, and innovation |
586 |
| 33 |
Evolution Well Servicesevolutionws.com
Innovative pressure pumping company using electrically powered hydraulic fracturing equipment for cost-effective, safe, and environmentally-friendly operations with precise control |
513 |
| 34 |
Nexeo Plasticsnexeoplastics.com
Global thermoplastic resins distributor offering quality products, sustainable options, technical support, and value-added services across various industries worldwide |
495 |
| 35 | 471 | |
| 36 |
Target Hospitalitytargethospitality.com
A leading provider of turnkey accommodations and hospitality services for industries and relief organizations, prioritizing workforce satisfaction and performance |
461 |
| 37 |
Refined Technologiesrefinedtechnologies.com
The company focuses on serving others first, delivering fast shutdowns globally with dedication to core behaviors and a mission focused on excellence |
447 |
| 38 |
Valcourt Groupvalcourt.group
Premier provider of waterproofing, window cleaning, and restoration services nationwide Focus on trust, accountability, and communication for minimal disruption Compliance-driven Visit website for more |
441 |
| 39 |
Benchmark Resorts & Hotelsbenchmarkresortsandhotels.com
Luxury resorts and hotels offering immersive, locally-inspired experiences to guests, focusing on transformative and authentic travel moments with thoughtful hospitality |
408 |
| 40 |
APTIM (formerly CB&I Capital Services)aptim.com
This company provides services that support sustainable development and engineering solutions, focusing on environmental and infrastructure projects |
402 |
| 41 | 382 | |
| 42 |
Newpark Resources, Incnewpark.com
The company offers drilling fluids products, services, and environmental solutions for wells globally, as well as provides matting solutions for various industries |
379 |
| 43 |
Janus Automationjanusautomation.com
Specializing in industrial automation and IT for Iron & Steel, Oil & Gas, and metals industries Services include crane automation, logistics optimization, and digital transformation |
352 |
| 44 |
Chicago Bridge & Iron - Powercbi.com
A company in the power division based in Chicago, specializing in engineering and construction services for power generation projects |
346 |
| 45 |
Global Shop Solutionsglobalshopsolutions.com
Global Shop Solutions simplifies manufacturing with ERP software for quality parts on time, from quote to cash Cloud or on premise options available worldwide |
344 |
| 46 |
Benchmark, Pyramid Luxury & Lifestylebenchmarkpyramid.com
A division of Pyramid Global Hospitality offering top-tier lodging, dining, and recreational experiences known for exceptional service and unforgettable memories |
341 |
| 47 |
Crust Pizza Co.crustpizzaco.com
A pizza company located in The Woodlands, Texas, serving delicious pizzas to customers at 4775 W Panther Creek Drive |
330 |
| 48 |
Cook Compressioncookcompression.com
Global provider of engineered reciprocating compressor components, services, and systems for gas compression industry, with expertise in refining, petrochemical, and industrial operations worldwide |
327 |
| 49 |
The Woodlands Townshipthewoodlandstownship-tx.gov
A thriving community and premier destination within a natural forest that promotes diversity, inclusivity, and a balanced lifestyle for residents and visitors alike |
321 |
| 50 |
Dover Precision Componentsdoverprecisioncomponents.com
Delivering precision components and solutions for rotating and reciprocating machinery worldwide, focusing on efficiency, reliability, and productivity in challenging environments |
320 |
| 51 |
Target Logistics Management LLCtargetlodging.com
The company provides turnkey workforce housing solutions, specializing in serving the oil, gas, mining industries, governments, relief organizations, and more |
315 |
| 52 |
Thorpe Specialty Services Corporationthorpeplantmaintenanceandengineering.com
Leading industrial service provider offering engineering, manufacturing, insulation, refractory systems, and flooring/resurfacing solutions with a focus on safety, quality, and cost effectiveness Offices in USA, Canada, and select international markets |
315 |
| 53 |
Encompass Energy Services, LLCencompassservices.com
Encompass Energy Services is a leading survey, land/ROW, and GIS firm catering to energy, land management, and transportation/infrastructure industries with customized solutions |
313 |
| 54 |
Altitude Energy Partnersaltitude-ep.com
Specializing in Directional Drilling, the company offers cutting-edge technology and tailored solutions to meet the needs of their clients |
306 |
| 55 |
Blue Cloud Pediatric Surgery Centersbluecloudpsc.com
Providing top-quality care to pediatric and special needs patients nationwide, focusing on surgical procedures in a specialized center |
299 |
| 56 |
Axiom Medicalaxiomllc.com
Axiom Medical offers personalized health solutions and expertise for diverse workplaces, focusing on real-time insights, safety, and employee well-being |
290 |
| 57 |
CSI Compressco LPkodiakgas.com
CSI Compressco LP provides compression services and equipment for natural gas and oil production, offering a fleet of compressor packages and aftermarket services globally |
272 |
| 58 |
PURISpuriscorp.com
A leader in trenchless rehabilitation technologies, providing eco-friendly solutions, innovative methods, and the largest self-performed portfolio in the industry |
229 |
| 59 |
Source Logisticssourcelogistics.com
Specializing in customized logistics and supply chain solutions for US markets, offering warehousing, order processing, ecommerce fulfillment, transportation, and data services for various industries |
196 |
| 60 |
DME Express LLCdmeexpress.com
A leading DME provider for hospices and nursing facilities, offering high-quality equipment at competitive prices with extensive industry experience |
187 |
| 61 |
Spectrum Catering, Concessions & Eventsspectrumconcessions.com
A Texas corporation offering high-quality, value-based hospitality services with a focus on customer care, dedicated to exceeding client expectations |
186 |
| 62 |
Keller Williams The Woodlandskwwoodlands.com
Real estate agency in The Woodlands and Magnolia focused on professionalism, integrity, and community impact when helping clients with home transactions |
178 |
| 63 |
Westway Feed Products LLCwestwayfeed.com
Global supplier of agricultural-based liquid solutions offering livestock supplements, feed mill products, pellet binder, dried molasses, value-added products, and feed supplement blocks for all classes of livestock |
177 |
| 64 |
Team Oil Toolsteamoiltools.com
Oil and gas experts providing innovative downhole solutions focused on precision and efficiency, tailored to clients' needs and exceeding expectations |
175 |
| 65 |
R360 Environmental Solutions, LLCr360environmentalsolutions.com
Leading provider of oilfield waste management solutions across major US oil and gas exploration regions, headquartered in Texas with facilities in six states |
171 |
| 66 |
Cordialsa USA Inccordialsausa.com
Distributor and marketer in the US for Grupo Nutresa food companies, specializing in cookies, coffee, and chocolate products from various countries |
170 |
| 67 |
Shrieveshrieve.com
Global provider of industrial, specialty chemicals, lubricants, fluids, and energy products & services through value-added distribution, market solutions, and exceptional customer experiences |
170 |
| 68 |
Black Walnut Cafeblackwalnutcafe.com
Serving elevated classics from coffee to cocktails for breakfast, lunch, dinner, and drinks on weekends |
169 |
| 69 |
The Woodlands High Schooltwhs.conroeisd.net
A public high school in Texas consistently ranked in the top 3% nationally, offering over 80 extracurricular clubs and activities |
168 |
| 70 |
Xtreme Lashes by Jo Moussellixtremelashes.com
A global beauty brand offering high performance products and training for professional Lash Stylists, simplifying beauty routines and empowering lives |
167 |
| 71 |
Eastern Energy Services, Inc.easternenergyservices.com
Industry leader in oilfield services, providing top equipment and experienced personnel for all operation phases Committed to exceeding customer expectations and industry demands |
165 |
| 72 |
Simplifysimplifycorp.com
A leading communications consultancy providing IT strategy, procurement, implementation, and support services to large multi-site and contact center operations worldwide |
163 |
| 73 |
AllianceHCMalliancehcm.com
Providing proprietary web-based human capital management software with personalized service, covering payroll, onboarding, benefits, timekeeping, and employee management. |
156 |
| 74 |
The Club at Carlton Woodscarltonwoods.com
A prestigious club offering top-tier golf courses, tennis, fitness, spa services, and dining in a social environment focused on excellence and camaraderie |
153 |
| 75 |
Tablerocktablerock-us.com
A dynamic team offering innovative land acquisition, survey, inspection, and project management solutions in North America with a focus on efficiency and client satisfaction |
150 |
| 76 |
Millennium Physiciansmillenniumphysicians.com
A multi-disciplinary medical group in Greater Houston offering comprehensive healthcare services including oncology, internal medicine, surgery, and diagnostic services |
150 |
| 77 |
Chart Energy & Chemicals, Inc.chartindustries.com
The company plays a critical role in daily life by enabling various products through effective communication and diverse international operations |
149 |
| 78 |
Urgent Care for Kidsurgentcarekids.com
Pediatric urgent care chain in Texas offering in-person and online care for children up to 21 years old, including after-hours services and on-site diagnostics |
148 |
| 79 |
CURITECcuritec.com
Curitec provides wound care solutions for post-acute and long-term care providers and their residents in the healthcare industry |
146 |
| 80 |
Epsilyteepsilyte.com
A leading producer of advanced insulative materials, focusing on lightweight, energy-efficient solutions for various industries worldwide |
116 |
| 81 |
Cellipont Bioservicescellipont.com
Develops and manufactures cell therapies from small to large batches, focusing on CAR-T, iNK, dendritic cell, and other novel cell therapy approaches. |
111 |
| 82 |
Arena Energy, LLCarenaenergy.com
An energy company in Texas focuses on lower-risk drilling opportunities in the Gulf, creating oil and gas reserves primarily through well drilling |
96 |
| 83 |
Ring Energy, Inc.ringenergy.com
Texas-based oil and gas exploration company focused on enhancing shareholder value through proven reserve growth and positive cash flow |
86 |
| 84 |
TachusFibertachus.com
A Texas-based fiber-optic Internet provider, offering ultra-reliable and lightning-fast Internet to almost 40,000 Texans with impressive ratings and achievements |
80 |
| 85 |
Bourque Logisticsbourquelogistics.com
An independent logistics software developer and services provider specializing in integrated systems for shipping, tracking, fleet accounting, and supply chain management |
77 |
| 86 |
Rockland Capitalrocklandcapital.com
A private equity company specializing in acquiring, developing, and managing power and energy infrastructure investments, with a focus on value-driven opportunities |
64 |
| 87 |
MP2 Energy LLC, A Shell Energy North America Subsidiarymp2energy.com
A full-service energy company offering solutions in power market, risk management, Demand Response services, and solar generation partnerships with top developers |
57 |
| 88 |
United Machiningunited-machining.com
Global manufacturing company with six facilities worldwide producing components for various industries, including construction equipment, truck engines, wind power generators, and industrial robots |
47 |
| 89 |
Riverside Energy Grouplinkedin.com
The company focuses on creating sustainable value through efficient and responsible management of oil and gas exploration and production assets in the United States |
46 |
| 90 |
Quantix/First Choice Logistics, Inc.quantixscs.com
A logistics company recently acquired by QuantixSCS, offering a wide range of transportation and supply chain services under the new name Quantix |
43 |
| 91 |
Vanna Information Technologiesvannainfotech.com
A professional software services company specializing in digital commerce, HR digital transformation, and custom application development to drive innovation and improve productivity |
38 |
| 92 |
Entergy Texas Incentergy-texas.com
A public utility company in Texas that generates, transmits, distributes, and sells electric energy to over 417,000 customers, as well as owns gas and coal-fired generating plants |
37 |
| 93 |
ZignExzignex.com
A logistics software company utilizing Operations Research, AI, and Data Science to provide premier solutions for businesses worldwide |
34 |
| 94 |
Stella Energy Solutionsstellaess.com
Stella Energy Solutions is a leading clean energy platform in Texas, developing and operating utility-scale solar and energy storage facilities across the United States |
32 |
| 95 |
PVI Holdings, Inc.pviholdings.com
The company offers a range of flow control products, services, and industry solutions for marine and oil & gas sectors through three operating companies |
26 |
| 96 |
Mission Well Services, LLCmissionws.com
A company offering production optimization solutions and services to the oil & gas industry, specializing in hydraulic fracturing and coiled tubing in the southern United States |
19 |
| 97 |
Virtuo Group Corporationvirtuogroup.com
Delivering IT solutions for premium enterprise value, specializing in cyber security, systems migration, application management, and project/program management with excellence and agility |
18 |
| 98 |
The Lion Consulting Groupthelionconsultant.com
A results-driven sales firm offering tailored plans to increase revenue and reach, with a focus on equipping, strategizing, and executing to achieve goals |
15 |
| 99 |
MTI Forwarding Inc.mtiforwarding.com
Company providing integrated logistics services for US-MEX cross-border shipments, including FTL, LTL, intermodal, warehouse services, project cargo, and specialized equipment |
14 |
| 100 |
West Atlantic Cargowatlanticcargo.com
Global freight shipping company offering reliable and cost-effective solutions for ground, air, and ocean transportation, warehousing, and project logistics services worldwide |
13 |
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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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