| # | Company | Employees |
|---|---|---|
| 1 | 53,307 | |
| 2 |
USAAusaajobs.com
This company provides financial services to the military community, offering competitive products, exceptional service, and trusted advice with integrity and loyalty |
40,406 |
| 3 |
Whataburgerwhataburger.com
Opened in 1950, this restaurant chain serves made-to-order burgers with never-frozen beef on toasted buns, along with other menu items, in over 1,100 locations. |
24,292 |
| 4 |
Valerovalero.com
Manufacturing, marketing transportation fuels, petrochemical products. Operating petroleum refineries, ethanol plants, and renewable diesel facilities for wholesale markets. |
11,096 |
| 5 |
The University of Texas at San Antonioutsa.edu
A Tier One research institution specializing in cyber, health, social-economic development, and fundamental futures with a focus on multicultural traditions and innovation |
8,676 |
| 6 |
UT Health San Antoniouthscsa.edu
Leading health sciences university in Texas with a strong focus on NIH funding, producing thousands of alumni in various health-related fields |
8,661 |
| 7 |
Zachry Groupzachrygroup.com
Turnkey engineering, construction, maintenance, turnaround, and fabrication services for energy, chemicals, power, manufacturing, and industrial sectors with high safety standards. |
8,087 |
| 8 |
Northside ISDnisd.net
A large and diverse school district in northwest San Antonio, Texas, focused on providing quality education and extracurricular programs |
7,864 |
| 9 |
Rackspace Technologyrackspace.com
Specializing in multicloud solutions, we assist global companies in overcoming challenges by providing custom cloud services for improved performance |
7,046 |
| 10 |
City of San Antoniosa.gov
City government managing economic development, cultural preservation, military support, tourism, and infrastructure to foster a diverse and thriving community. |
5,994 |
| 11 |
Frostfrostbank.com
Provides banking, investment, and insurance services to businesses and individuals across Texas with a focus on customer experience and technology. |
5,177 |
| 12 | 4,646 | |
| 13 |
WellMed Medical Managementwellmedhealthcare.com
healthcare delivery company providing quality care to over 750,000 patients through physician-led teams in Texas, Florida, and New Mexico |
4,584 |
| 14 |
Child Advocates San Antonio (CASA)casa-satx.org
The organization recruits, trains, and supervises volunteer Advocates who provide support and advocacy for abused and neglected children in need of safe and permanent homes |
4,542 |
| 15 |
San Antonio ISDapplitrack.com
A diverse school district in San Antonio offering various educational programs, including dual-language, bilingual, career exploration, and specialized schools |
4,258 |
| 16 |
University Healthuniversityhealth.com
A nationally recognized hospital and outpatient healthcare network in Bexar County, committed to patient-centered care, research, teaching, and innovation |
4,152 |
| 17 |
Methodist Healthcare Systemsahealth.com
A leading healthcare provider in San Antonio, offering exceptional and cost-effective medical services to the community, including charity care when needed |
3,918 |
| 18 |
ISS Facility Services - North Americaus.issworld.com
A global workplace experience and facility management company with services in workplace, cleaning, food, and technical areas, improving business performance and quality of life |
3,784 |
| 19 |
Visionworks of Americavisionworks.com
A national provider of eyecare services and high-quality eyewear products, committed to delivering flawless vision and exceptional patient care experiences |
3,649 |
| 20 |
Personal Driver
Financial services company based in San Antonio, Texas, specializing in personal driver services |
3,631 |
| 21 |
Southwest Research Instituteswri.org
Independent nonprofit organization specializing in creating and transferring technology in engineering and physical sciences, with laboratories and facilities across multiple locations. |
3,135 |
| 22 |
HOLT Groupholtgrp.com
A multi-industry powerhouse offering heavy machinery, construction, consulting, training, and technology services, with nearly a century of expertise |
2,753 |
| 23 |
CPS Energycpsenergy.com
Community-owned provider delivering safe, reliable electric and natural gas services to San Antonio and surrounding counties with low customer rates. |
2,699 |
| 24 |
University of the Incarnate Worduiw.edu
A Catholic university offering a range of undergraduate, graduate, and doctoral programs with a focus on liberal education and international partnerships |
2,645 |
| 25 |
Carenet Healthcarenethealthcare.com
Leading provider of healthcare consumer engagement solutions, clinical support, health advocacy, and 24/7 access to medical care for millions of Americans |
2,408 |
| 26 |
Frost & Sullivanfrost.com
With over 60 years of experience, they help companies achieve growth by navigating emerging trends and maximizing economic potential through innovative opportunities |
2,351 |
| 27 |
Baptist Health Systembaptisthealthsystem.com
A healthcare provider in San Antonio and South Texas offering robotically-assisted surgery and certified Chest Pain Centers at all hospitals |
2,326 |
| 28 |
Department of the Air Forceairforce.com
This company offers education counseling to Air Force members and oversees the DoD Skillsbridge program for transitioning military personnel |
2,202 |
| 29 |
St. Mary's Universitystmarytx.edu
Established in 1852, this institution offers personal attention and powerful academic programs, focusing on liberal arts, business, science, engineering, technology, and law |
2,178 |
| 30 |
Trinity Universitytrinity.edu
A top private liberal arts university in San Antonio, Texas, known for its stimulating and collaborative environment for undergraduate and graduate students worldwide |
2,128 |
| 31 |
Taco Cabanatacocabana.com
This company serves affordable Tex-Mex food with authentic family recipes in a casual, welcoming atmosphere that encourages customers to relax and enjoy |
2,053 |
| 32 |
Pape-Dawsonpape-dawson.com
A well-established company providing civil engineering, surveying, GIS, and environmental services with a focus on employee growth and community impact |
2,040 |
| 33 |
Tesoro Corporationtsocorp.com
A company specializing in refining and marketing operations, now operating under the name Andeavor after acquiring Western Refining Visit wwwandeavorcom |
1,960 |
| 34 | 1,960 | |
| 35 |
HOLT CATholtcat.com
Sales, rental, and servicing of Caterpillar machines, engines, and generators across Texas, including equipment rebuilds and custom fabrication. |
1,840 |
| 36 |
Massage Heightsmassageheightsfranchise.com
A franchise brand offering affordable, upscale massage experiences, with 110+ locations across the United States and Canada Independently owned and operated |
1,650 |
| 37 |
Security Service Federal Credit Unionssfcu.org
A top credit union offering high-quality financial services in Texas, Colorado, and Utah, focusing on employee development, community involvement, and corporate responsibility |
1,640 |
| 38 |
Acelityacelity.com
Global advanced wound care company providing innovative solutions for patients in over 90 countries, focusing on speeding healing and improving lives |
1,588 |
| 39 |
Harland Clarke Customer Engagement Solutionsvericast.com
Provider of engagement solutions connecting financial institutions and consumers through high-performance solutions including checks, card programs, digital advertising, direct mail, and more |
1,533 |
| 40 |
CCC Group, Inc.cccgroupinc.com
Nationally-ranked heavy industrial general contractor providing construction and fabrication services to various markets in the US and select international locations |
1,469 |
| 41 |
Sirius Computer Solutionscdw.com
A nationally recognized IT solution provider with certified teams offering a wide range of technology solutions to meet business needs |
1,459 |
| 42 |
Endeavorsendeavors.org
Endeavors is a nonprofit organization that connects vulnerable populations in crisis to a wide range of helpful services, promoting growth and positive impact |
1,337 |
| 43 |
C.H. Guentherchg.com
Manufactures and supplies high-quality grain-based and frozen food products for foodservice clients and select consumer markets globally. |
1,322 |
| 44 |
Bill Miller Bar-B-Qbillmillerbbq.com
A family restaurant chain serving barbecued meats, fresh pies, and breads cooked over wood, with quality catering services and multiple locations |
1,282 |
| 45 |
Zachry Construction Corporationzachryconstructioncorp.com
A privately-owned construction and materials company, offering general construction, project development, and construction development services with a focus on quality and innovation |
1,282 |
| 46 |
San Antonio Collegealamo.edu
A prestigious educational institution offering a wide range of academic programs in Arts & Sciences, Professional/Technical fields, and continuing education opportunities to the San Antonio community |
1,276 |
| 47 |
BCFS Health & Human Servicesbcfshhs.org
A non-profit organization providing community-based care, prevention services, housing for foster youth, mental health support, human trafficking advocacy, medical programs, and a special needs theme park |
1,266 |
| 48 |
Guckenheimerguckenheimer.com
Provides innovative on-site food solutions, including restaurants, cafes, catering, and pantry services, transforming traditional facilities into signature dining destinations. |
1,254 |
| 49 |
NatureSweetnaturesweet.com
A leading greenhouse vegetable producer in North America, specializing in snacking tomatoes, cucumbers, and sweet peppers with a focus on social and environmental responsibility |
1,219 |
| 50 |
Andeavorandeavor.com
A company in marketing, logistics, and refining with a focus on safety, community support, employee empowerment, environmental protection, and extraordinary achievements |
1,162 |
| 51 |
Texas A&M University-San Antoniotamusa.edu
A&M-SA offers undergraduate and graduate degrees in various fields with flexible course options, focusing on excellence, affordability, and student empowerment |
1,122 |
| 52 |
The Center for Health Care Serviceschcsbc.org
A compassionate team providing counseling, resources, and support to individuals struggling with addiction, mental health conditions, and developmental disabilities in Bexar County |
1,116 |
| 53 |
Defense Health Agencycivilianmedicaljobs.com
Health care professionals, both civilian and military, serve military service members at locations worldwide with unique professional opportunities and benefits |
1,110 |
| 54 |
Compass Connectionscompassconnections.org
A non-profit organization in Texas that provides residential care, support, foster care, and adoption services for vulnerable children and families worldwide |
1,047 |
| 55 |
San Antonio Water Systemsaws.org
Provides water and wastewater services to over 2 million consumers, leading in water innovation and sustainable resource management. |
974 |
| 56 |
Our Lady of the Lake Universityollusa.edu
Private university offering bachelor's, master's, and doctoral degrees across multiple campuses with flexible scheduling and diverse academic programs. |
967 |
| 57 |
Vericastvericast.com
A marketing technology company specializing in data-driven strategies to influence consumers and drive commerce for clients in various industries |
958 |
| 58 |
Spurs Sports & Entertainmentnba.com
A community-focused sports and entertainment company providing live and digital experiences for fans with three teams and two venues Led by Chairman and CEO Peter J Holt |
950 |
| 59 |
NuStar Energy L.P.sunocolp.com
A growth-driven energy partnership with pipelines and storage facilities across the US and Mexico, known for its caring culture and community service commitment |
929 |
| 60 |
Empresario Independiente - Generaci贸n Yvendidesign.com
Young entrepreneurs of Generation Y seeking financial freedom, working independently to improve daily, fulfill their dreams, and help others do the same |
903 |
| 61 |
H E B Grocery Co
A real estate company based in San Antonio, Texas specializing in property management and development |
883 |
| 62 |
MVM, Inc.mvminc.com
A family-owned business providing exceptional federal services since 1979, specializing in professional, IT, administrative services, and mission solutions |
883 |
| 63 |
Northwest Vista Collegealamo.edu
A college committed to student success, offering guidance for new students, support for returning students, and personal enrichment classes for all ages |
867 |
| 64 |
Edgewood ISDeisd.net
The company's mission is to provide exceptional learning experiences for students, empowering them to succeed in a changing world |
863 |
| 65 |
VIA Metropolitan Transitviainfo.net
provides extensive public transportation across multiple cities and areas, supporting community connectivity, economic vitality, and quality of life. |
851 |
| 66 |
Labatt Food Serviceweb.labattfood.com
A privately owned food distributor in Texas, Oklahoma, and New Mexico, offering high quality products and innovative technology services to food establishments |
850 |
| 67 |
Credit Humancredithuman.com
A member-owned financial cooperative providing financial services to over 235,000 members, helping them stress less, live more, and build stronger communities |
823 |
| 68 |
SAISD Foundationsaisdfoundation.com
The SAISD Foundation fundraises to support innovation and educational excellence in the San Antonio Independent School District through grants and scholarships |
815 |
| 69 |
Caring Senior Servicecaringseniorservice.com
Providing dependable senior care services since 1991, promising to support clients when family can't be there, bringing positive changes to their lives |
814 |
| 70 |
Pioneer Energy Servicespatenergy.com
Provider of comprehensive energy services including drilling, well servicing, and equipment rental for oil and gas industry operations. |
806 |
| 71 |
St. Philip's Collegealamo.edu
A diverse community college with historical significance, federally designated as both a historically Black college and a Hispanic-serving institution |
798 |
| 72 |
School of Science and Technologysstschools.org
A leading public school system in Texas focusing on college prep, STEM education, character-building, and a student-centered environment for grades PreK-12 |
774 |
| 73 |
Pro-Vigil Surveillance Servicespro-vigil.com
A surveillance and monitoring solution ensuring asset safety with fast response times, industry-leading service guarantee, and proactive crime prevention |
758 |
| 74 |
Raba Kistner, Inc.rkci.com
An engineering consulting and program management firm dedicated to building a more sustainable world through a variety of services in multiple markets |
754 |
| 75 |
Lewis Energy Grouplewisenergy.com
A privately-owned exploration and production company with owned drilling rigs, using innovative technology to reduce costs and continue drilling in challenging times |
753 |
| 76 |
Western Refiningandeavor.com
Energy company that acquired Western Refining, changed its name to Andeavor, and focuses on refining and marketing petroleum products Visit wwwandeavorcom |
737 |
| 77 |
Allcat Claims Serviceallcatclaims.com
Tech-enabled insurance services provider with a focus on accuracy, speed, and quality in claims resolution, leveraging a network of experienced adjusters and innovative solutions |
734 |
| 78 |
Broadway Bankbroadway.bank
Offering personal, private, business, mortgage banking, and wealth management with modern technology and local, personalized service across Texas. |
724 |
| 79 |
Lancer Worldwidelancerworldwide.com
Manufacturing and supplying innovative beverage dispensing equipment worldwide, providing customers with quality products and competitive market advantages. |
710 |
| 80 |
US Army Medical Department (AMEDD)goarmy.com
A healthcare organization established in 1775 to provide medical care for the US Army, led by the Surgeon General Headquarters in San Antonio, Texas |
704 |
| 81 |
Southwest ISDswisd.net
A Texas-based school district providing opportunities for learners to become confident, resilient, and successful global citizens since 1951 |
669 |
| 82 |
ProScribeproscribemd.com
A national provider of medical scribes who accurately document patient interactions, enabling physicians to focus on care, improve productivity, and enhance healthcare quality |
669 |
| 83 |
Victory Capitalvcm.com
Global asset management firm offering specialized investment strategies through autonomous Investment Franchises, mutual funds, ETFs, and other products/services to institutions and individual investors worldwide |
648 |
| 84 |
CentroMedcentromedsa.com
A non-profit organization providing healthcare services to all populations in the greater San Antonio area, with a focus on culturally competent care for underserved communities |
645 |
| 85 |
Keller Williams Legacykellerwilliamssa.com
Prioritizing integrity and trust, this company ensures a "win-win" situation for clients through effective communication, teamwork, and respect for all stakeholders |
643 |
| 86 |
CommuniCarecommunicaresa.org
A full-service primary healthcare system offering a wide range of medical services across multiple locations, focused on exceptional care and patient well-being |
639 |
| 87 |
Bexar County Sheriff's Officebcsocareers.com
The company is dedicated to enhancing public safety, reducing crime, and building partnerships within the community through integrity, fairness, leadership, and professionalism |
639 |
| 88 |
Socofin S.A.socofin.cl
Banking company based in San Antonio, Chile, offering financial services and solutions from their offices on Calle Alberto Barros |
591 |
| 89 |
Airrostiairrosti.com
Provider-led MSK solution with 17+ years experience, offering in-person and virtual care for muscle and joint pain, delivering cost savings and high patient satisfaction |
589 |
| 90 |
Joeris General Contractors, LLCjoeris.com
A commercial general contractor and construction manager focusing on building trust and delivering results in Texas for over 53 years |
571 |
| 91 |
Alonso & Alonso Attorneys at Law, PLLCalonsoandalonsolaw.com
Immigration law experts providing legal solutions for individuals and families, specializing in family-based visas, employment-based visas, asylum claims, and deportation defense |
566 |
| 92 |
U.S. Army Installation Management Commandhome.army.mil
The US Army Installation Management Command oversees daily operations of Army installations worldwide, providing essential services for military communities and fostering readiness |
562 |
| 93 |
Touchstone Communitiestouchstone-communities.com
Healthcare company in Texas delivering skilled nursing, long-term care, rehab, Alzheimer's and dementia care, and respite services with a focus on serving patients and honoring God |
560 |
| 94 | 557 | |
| 95 |
Kairoi Residentialkairoi.com
A partner-led company specializing in investing, developing, and managing multifamily communities, dedicated to delivering value, growth, and strong returns |
555 |
| 96 |
TruFit Athletic Clubstrufitathleticclubs.com
Tru Fit is committed to providing convenient, safe, and quality athletic facilities with elite programming and dependable services to earn and retain membership business |
551 |
| 97 |
Coldwell Banker D'Ann Harper, REALTORScbharper.com
Premier real estate brokerage in San Antonio and Hill Country, offering support, training, and services for agents, with a global reach |
544 |
| 98 |
Keller Williams Heritagekwsanantonio.com
A real estate company in San Antonio and Hill Country area, prioritizing integrity, communication, and continuous training to provide world-class service |
542 |
| 99 |
SWBC Mortgage Corporationswbcmortgage.com
A full-service mortgage lender providing quality loans and innovative tools for a superior user experience in 39 states since 1988 |
530 |
| 100 |
#OpenToWorkotw-careers.com
This company page offers support and resources for individuals going through a career transition, managed by Chris Clevenger |
522 |
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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 9, 2026.
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