# Top 50 corporate groups and holding companies in Missouri

Tamtam tracks 59 corporate groups and holding companies headquartered in Missouri. This list ranks the 50 largest by number of employees on LinkedIn, led by Ascension, Panera Bread and Enterprise. Their median headcount is 1,002. Half of them were founded in 1972 or later. The most common headquarters are St. Louis (20), Kansas City (9) and Columbia (3).

This selection of companies in Missouri includes large corporate groups. Many operate in services, such as Ascension and Express Scripts Pharmacy Benefit Services in healthcare, Panera Bread in restaurants, and Enterprise in car rental. Other notable companies include Advantage Solutions, which provides outsourced sales and marketing services, and Hallmark Cards, a global business creating greeting cards and gifts.

The headquarters are primarily concentrated in St. Louis, which hosts companies like Caleres, Inc., a global footwear brand portfolio, and Energizer Holdings, a global organization creating innovative products. Kansas City also features prominently with companies such as H&R Block, providing tax preparation services worldwide, and Hallmark Cards. This indicates a strong presence of established firms across diverse service and manufacturing sectors.

🇺🇸 Missouri · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Ascension](https://www.tamtam.ai/c/ascension) (healthcare.ascension.org)<br>A faith-based healthcare organization focused on providing compassionate care to those in need across the US through various services and programs | Hospitals and Health Care | 🇺🇸 St. Louis | 66,381 | 1999 |
| 2 | [Panera Bread](https://www.tamtam.ai/c/panera-bread) (panerabread.com)<br>Fresh bakery foodservice offering freshly baked breads, pastries, and clean food with omni-channel ordering and community focus. | Restaurants | 🇺🇸 Fenton | 39,768 | 1987 |
| 3 | [Enterprise](https://www.tamtam.ai/c/enterprise) (enterprisemobility.com)<br>Provides car rental services globally through multiple brands, offering employment opportunities and vehicle access in many countries. | Travel Arrangements | 🇺🇸 St. Louis | 32,638 |  |
| 4 | [Advantage Solutions](https://www.tamtam.ai/c/advantage-solutions) (youradv.com)<br>Provider of outsourced sales and marketing services including retail merchandising, digital commerce, sampling, and omnichannel marketing for consumer goods companies. | Business Consulting and Services | 🇺🇸 St. Louis | 27,762 | 1987 |
| 5 | [Wal Mart Corporation](https://www.tamtam.ai/c/wal-mart-corporation)<br>This company provides access to Walmart executive speeches, financial reports, press releases, photos, videos, and interactive global location map | Entertainment Providers | 🇺🇸 Sikeston | 19,478 |  |
| 6 | [Hallmark Cards](https://www.tamtam.ai/c/hallmark-cards) (careers.hallmark.com)<br>Family-owned global business creating emotionally connected world through greeting cards, gifts, media networks, real estate development, and art products for children worldwide | Retail | 🇺🇸 Kansas City | 17,388 | 1910 |
| 7 | [H&R Block](https://www.tamtam.ai/c/h-and-r-block) (hrblock.com)<br>H&R Block provides tax preparation services worldwide, focusing on building long-lasting relationships through care, innovation, and a people-first approach | Financial Services | 🇺🇸 Kansas City | 16,116 | 1955 |
| 8 | [Express Scripts Pharmacy Benefit Services](https://www.tamtam.ai/c/express-scripts-pharmacy-benefit-services) (evernorth.com)<br>Creation and management of prescription benefit programs aimed at reducing costs for members, health plans, employers, and agencies. | Hospitals and Health Care | 🇺🇸 St. Louis | 12,361 |  |
| 9 | [Bass Pro Shops](https://www.tamtam.ai/c/bass-pro-shops) (basspro.com)<br>Premier outdoor and conservation company offering destination retail, boats, resorts, and nature experiences, all while promoting conservation and community impact | Retail | 🇺🇸 Springfield | 10,126 | 1972 |
| 10 | [Caleres, Inc.](https://www.tamtam.ai/c/caleres-inc) (jobs.caleres.com)<br>This company is a global footwear brand portfolio with diverse offerings, including famous labels like Sam Edelman and Naturalizer, focusing on consumer-driven innovation and quality craftsmanship | Retail Apparel and Fashion | 🇺🇸 St. Louis | 9,313 | 1878 |
| 11 | [Energizer Holdings](https://www.tamtam.ai/c/energizer-holdings) (energizerholdings.com)<br>A global organization creating innovative products to improve lives, focused on serving customers, driving revenue, and delivering long-term value | Manufacturing | 🇺🇸 St. Louis | 6,098 | 1896 |
| 12 | [Leggett & Platt](https://www.tamtam.ai/c/leggett-and-platt) (leggett.com)<br>Designing and manufacturing innovative products and components for bedding, furniture, seating, homes, offices, airplanes, and automobiles worldwide. | Furniture and Home Furnishings Manufacturing | 🇺🇸 Carthage | 4,601 | 1883 |
| 13 | [Shelter Insurance Companies](https://www.tamtam.ai/c/shelter-insurance-companies) (shelterinsurance.com)<br>Property and casualty insurance provider offering auto, home, life, renters, farm, business, and specialty insurance products across multiple states. | Insurance | 🇺🇸 Columbia | 4,253 | 1946 |
| 14 | [Olin](https://www.tamtam.ai/c/olin) (olin.com)<br>Manufacturing and supplying chemical products with a focus on innovation, customer needs, ethical standards, and environmental stewardship worldwide. | Chemical Manufacturing | 🇺🇸 Clayton | 3,682 | 1892 |
| 15 | [Maritz](https://www.tamtam.ai/c/maritz) (maritz.com)<br>A behavioral science-driven company solving business challenges for Fortune 500 clients through research, incentives, rewards, experience design, and events services and solutions | Business Consulting and Services | 🇺🇸 St. Louis | 3,349 |  |
| 16 | [National Beef Packing Company LLC](https://www.tamtam.ai/c/national-beef-packing-company-llc) (nationalbeef.com)<br>Processing and marketing fresh beef, consumer-ready products, beef by-products, leather, and providing transportation and logistical services across multiple U.S. locations. | Food and Beverage Manufacturing | 🇺🇸 Kansas City | 1,757 | 1992 |
| 17 | [Spring Venture Group](https://www.tamtam.ai/c/spring-venture-group) (springventuregroup.com)<br>A holding company specializing in direct-to-consumer health insurance brands for the 65+ market, using analytics and technology to provide a personalized shopping experience | Insurance | 🇺🇸 Kansas City | 1,370 | 2009 |
| 18 | [Herzog](https://www.tamtam.ai/c/herzog) (herzog.com)<br>A leading industry expert in railroad construction, maintenance, and operations with in-house equipment design for data-driven operational decisions | Construction | 🇺🇸 St Joseph | 1,356 | 1969 |
| 19 | [NISC](https://www.tamtam.ai/c/nisc) (nisc.coop)<br>IT organization providing software and hardware solutions to independent telephone companies, electric cooperatives, and public power entities in the US and Canada | Software Development | 🇺🇸 Lake Saint Louis | 1,316 |  |
| 20 | [Colibri Group](https://www.tamtam.ai/c/colibri-group) (colibrigroup.com)<br>This company provides professional education solutions for licensing, continuing education, test preparation, and career readiness, helping individuals excel in their careers | Professional Training and Coaching | 🇺🇸 St. Louis | 1,276 |  |
| 21 | [Kansas City Southern](https://www.tamtam.ai/c/kansas-city-southern) (kcsouthern.com)<br>Transportation holding company with railroad investments in the U.S., Mexico, and Panama, linking major commercial and industrial centers. | Rail Transportation | 🇺🇸 Kansas City | 1,147 |  |
| 22 | [Arch Resources, Inc](https://www.tamtam.ai/c/arch-resources-inc) (corenaturalresources.com)<br>Producer and exporter of metallurgical and thermal coals, operating multiple mines and marine export terminals focused on seaborne markets. | Mining | 🇺🇸 St. Louis | 1,136 |  |
| 23 | [ArchKey Solutions](https://www.tamtam.ai/c/archkey-solutions) (archkey.com)<br>A leading specialty trade installation and facilities services company with expertise in electrical, technologies, and specialty systems for new and existing facilities | Construction | 🇺🇸 St. Louis | 1,100 |  |
| 24 | [Focus Financial Partners](https://www.tamtam.ai/c/focus-financial-partners) (focusfinancialpartners.com)<br>Leading partnership of independent wealth management firms providing best practices, resources, and continuity planning to serve individuals, families, employers, and institutions | Financial Services | 🇺🇸 St. Louis | 1,028 | 2006 |
| 25 | [Alberici Constructors](https://www.tamtam.ai/c/alberici-constructors) (alberici.com)<br>Diversified construction company delivering complex projects across North America with quality, integrity, and a focus on employee expertise and client satisfaction. | Construction | 🇺🇸 St. Louis | 1,002 | 1918 |
| 26 | [UniGroup](https://www.tamtam.ai/c/unigroup) (unigroup.com)<br>Transportation company providing corporate moving services through leading van lines, logistics solutions, transportation management, and supplies for professional interstate moves | Truck Transportation | 🇺🇸 Fenton | 975 | 1988 |
| 27 | [Cass Information Systems](https://www.tamtam.ai/c/cass-information-systems) (cassinfo.com)<br>Provider of integrated information and payment management solutions for supply chains, communications, facilities, and operations, disbursing over $90 billion annually | Information Services | 🇺🇸 St. Louis | 870 | 1906 |
| 28 | [News-Press & Gazette Company](https://www.tamtam.ai/c/news-press-and-gazette-company) (npgco.com)<br>A multi-generational company based in St Joseph, Missouri, with holdings in broadcast television, newspapers, and other media and technology investments | Broadcast Media Production and Distribution | 🇺🇸 St. Joseph | 780 | 1845 |
| 29 | [Electric Power Systems](https://www.tamtam.ai/c/electric-power-systems) (asplundhpower.com)<br>An independent electrical testing & engineering organization specializing in commissioning, start up, and maintenance testing for various facilities globally | Utilities | 🇺🇸 Maryland Heights | 741 | 1977 |
| 30 | [TKC Holdings, Inc.](https://www.tamtam.ai/c/tkc-holdings-inc) (careers.tkcholdings.com)<br>A leading provider of food service and product delivery, specializing in delivering quality services with integrity and innovation while supporting career development | Food and Beverage Services | 🇺🇸 St. Louis | 727 | 2016 |
| 31 | [Capacity](https://www.tamtam.ai/c/capacity-university-city) (capacity.com)<br>This company offers a support automation platform using AI to deflect tickets, emails, and calls, helping teams streamline their processes | Software Development | 🇺🇸 University City | 707 | 2017 |
| 32 | [International Financial Data Services (IFDS)](https://www.tamtam.ai/c/international-financial-data-services-ifds) (ssctech.com)<br>Provider of financial data management and administration services, supporting investment funds and financial institutions with technology-driven solutions. | IT Services and IT Consulting | 🇺🇸 Kansas City | 689 | 1969 |
| 33 | [U.S. Engineering](https://www.tamtam.ai/c/u-s-engineering) (usengineering.com)<br>Full-service company providing award-winning plumbing, piping, HVAC, and sheet metal construction, service, and maintenance for various industries including healthcare, government, and commercial sectors | Construction | 🇺🇸 Kansas City | 688 | 1893 |
| 34 | [American Industrial Transport - AITX](https://www.tamtam.ai/c/american-industrial-transport-aitx) (aitx.com)<br>A leading railcar service provider offering leasing, repair, and railcar data solutions, with a diverse leasing fleet, best-in-class repair network, and financing options | Rail Transportation | 🇺🇸 St. Charles | 684 | 1988 |
| 35 | [Americo Financial Life and Annuity](https://www.tamtam.ai/c/americo-financial-life-and-annuity) (americo.com)<br>Provides a comprehensive range of life insurance and annuity products focused on customer needs and agent support with strong management. | Financial Services | 🇺🇸 Kansas City | 622 | 1946 |
| 36 | [Missouri Farm Bureau](https://www.tamtam.ai/c/missouri-farm-bureau) (mofbinsurance.com)<br>A multi-line insurance company in Missouri providing auto, home, life, and business insurance products with top ratings for security | Insurance | 🇺🇸 Jefferson City | 606 |  |
| 37 | [Cogent](https://www.tamtam.ai/c/cogent-riverside) (cogentcompanies.com)<br>Twelve partner companies providing fluid pumping and water processing solutions for industrial, municipal, commercial building trades, and oil and gas market sectors. | Environmental Services | 🇺🇸 Riverside | 578 | 1959 |
| 38 | [MFA Oil Company](https://www.tamtam.ai/c/mfa-oil-company) (mfaoil.com)<br>A farmer-owned cooperative supplying fuels, lubricants & propane in multiple states, also operating convenience stores and tire franchises Visit website for more | Oil and Gas | 🇺🇸 Columbia | 572 | 1929 |
| 39 | [CCA Global Partners](https://www.tamtam.ai/c/cca-global-partners) (ccaglobalpartners.com)<br>Empowering entrepreneurs with scale, resources, and innovation in various industries, fostering sustainability, growth, and effective competition in the marketplace | Business Consulting and Services | 🇺🇸 St. Louis | 560 | 1984 |
| 40 | [Tepa Companies](https://www.tamtam.ai/c/tepa-companies) (tepa.com)<br>A shared services organization providing leadership and management to various small businesses, offering construction, engineering, environmental, industrial, and technology services | Business Consulting and Services | 🇺🇸 Kansas City | 552 | 2005 |
| 41 | [Flat Branch Home Loans](https://www.tamtam.ai/c/flat-branch-home-loans) (flatbranchhomeloans.com)<br>A company offering low rate mortgages in 30 states with exceptional service, expert staff, and assistance for home purchases or refinancing | Financial Services | 🇺🇸 Columbia | 535 | 2005 |
| 42 | [Benjamin F. Edwards](https://www.tamtam.ai/c/benjamin-f-edwards) (benjaminfedwards.com)<br>National wealth management firm offering full-service brokerage and independent advisory services, prioritizing clients' interests with personalized solutions for advisors and clients | Financial Services | 🇺🇸 St. Louis | 524 | 2008 |
| 43 | [Safe Fleet](https://www.tamtam.ai/c/safe-fleet) (safefleet.net)<br>The company offers integrated safety solutions for fleets, prioritizing safety through advanced technology to prevent accidents and ensure driver and passenger well-being | Truck Transportation | 🇺🇸 Belton | 507 |  |
| 44 | [Independent Stave Company](https://www.tamtam.ai/c/independent-stave-company) (independentstavecompany.com)<br>Global cooperage company with facilities around the world, producing wine and whiskey barrels for customers in over 40 countries | Wine & Spirits | 🇺🇸 Lebanon | 486 | 1912 |
| 45 | [Marmic Fire & Safety Co.](https://www.tamtam.ai/c/marmic-fire-and-safety-co) (marmicfire.com)<br>A full-service safety company specializing in fire protection services, including fire extinguishers, fire suppression systems, and equipment installation, inspection, and repair | Public Safety | 🇺🇸 Joplin | 458 | 1951 |
| 46 | [McCormack Baron Companies](https://www.tamtam.ai/c/mccormack-baron-companies) (mccormackbaron.com)<br>The company specializes in developing, building, and managing economically-integrated urban neighborhoods by providing high-quality housing and community development services | Real Estate | 🇺🇸 St. Louis | 417 | 1973 |
| 47 | [Tetrasoft Inc.](https://www.tamtam.ai/c/tetrasoft-inc) (tetrasoft.us)<br>A global digital services company specializing in innovative solutions for industries such as healthcare, insurance, and manufacturing using disruptive technologies and strategies | IT Services and IT Consulting | 🇺🇸 Chesterfield | 416 | 1997 |
| 48 | [SCF](https://www.tamtam.ai/c/scf) (ingrammarinegroup.com)<br>The company provides integrated river transportation, logistics services, operates fleet of barges and towboats, inland terminals, warehouses, and invests in infrastructure projects | Truck Transportation | 🇺🇸 St. Louis | 386 |  |
| 49 | [BW Packaging](https://www.tamtam.ai/c/bw-packaging) (bwpackaging.com)<br>Global supplier of packaging machinery and solutions including filling, closing, labeling, flexible packaging, end-of-line systems, and integration services. | Machinery Manufacturing | 🇺🇸 St. Louis | 344 | 2016 |
| 50 | [ArchKey Solutions/Sachs Electric](https://www.tamtam.ai/c/archkey-solutions-sachs-electric) (archkey.com)<br>A leading specialty trade installation and facilities services provider, offering design, construction, and maintenance of electrical, technology, and specialty systems nationwide | Construction | 🇺🇸 St. Louis | 319 | 1925 |

## 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 Nov 11, 2026.

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Source: https://www.tamtam.ai/l/holding-companies-missouri