| # | Company | Employees |
|---|---|---|
| 1 |
POOLCORPpoolcorp.com
A global distributor of swimming pool supplies and leisure products, serving customers across North America, Europe, and Australia through diverse markets and sustainable practices |
2,993 |
| 2 |
St. Tammany Parish Public School Systemstpsb.org
A leading public school system in St Tammany Parish, educating over 38,000 students with a focus on innovative instruction and academic excellence |
1,503 |
| 3 |
HORNBECK OFFSHOREยฎhornbeckoffshore.com
A leading provider of technologically advanced offshore service vessels for the energy industry in the US Gulf of Mexico and Latin America Dedicated to safety and environmental protection |
1,490 |
| 4 |
St. Tammany Health Systemsttammany.health
A full-service healthcare provider offering world-class medical services with a focus on wellness, prevention, and disease management in a self-supporting community health system |
1,456 |
| 5 |
CTI Clinical Trial and Consulting Servicesctifacts.com
A global full-service CRO specializing in rare diseases and critical patient populations, offering clinical trial and consulting services worldwide |
1,139 |
| 6 |
ProMachpromachbuilt.com
Family of packaging and processing solution brands. Provides systems and integration including turnkey solutions, engineering services, and productivity software. |
997 |
| 7 |
CGB Enterprises, Inc.cgb.com
With a focus on grain and transportation industries, this company provides services for grain farmers, including buying, storing, selling, and shipping crops |
919 |
| 8 |
Newton County School Systemnewtoncountyschools.org
A school system in Covington, Georgia prioritizing student achievement through partnerships, high expectations, and a safe, supportive environment for lifelong learning |
877 |
| 9 |
Newton Countynewtoncountyga.gov
Newton County oversees regulatory functions such as building permits, planning, code enforcement, public safety, recreation, and other services in Covington, Georgia |
644 |
| 10 |
Globalstarglobalstar.com
Provides satellite and terrestrial connectivity services, offering secure data transmission, asset tracking, and monitoring for global consumers, businesses, and government agencies. |
637 |
| 11 |
Ampiricalampirical.com
Specializing in engineering power solutions, Ampirical provides quality EPC services for high voltage powerlines and substations, ensuring successful project outcomes |
505 |
| 12 |
Newton Medical Centernewtonmedical.com
Providing state-of-the-art medical services, Newton Medical Center offers a range of top-rated healthcare facilities, including surgery, emergency care, and diagnostic services |
452 |
| 13 |
Ardent Services, LLCardent.us
Provider of high-quality power, control, process-automation, and E&I services for process industries, with a focus on experienced contractors and project management |
440 |
| 14 |
Data Intensitydataintensity.com
Industry-leading Oracle cloud managed services provider offering full-stack support, migration services, and operational managed services to optimize Oracle technologies and applications for businesses |
440 |
| 15 |
Telrite Holdings, Inctelrite.com
Telrite Holdings owns multiple brands in the telecommunications industry such as H2O Wireless, Pure Talk, Life Wireless, and Telrite long distance services |
384 |
| 16 |
Netchexnetchex.com
One-stop web-based solution for payroll, HR, and benefits administration, supported by specialists, tailored to businesses' needs for efficient employee management |
376 |
| 17 |
NorthKey Community Carenorthkey.org
Provider of mental health, substance use, and developmental disability services in Northern Kentucky, offering a range of outpatient, crisis, and specialized support programs |
362 |
| 18 |
Express Employment of the Northshore and Tangipahoaexpresspros.com
A staffing agency helping job seekers find full-time, part-time, or flexible jobs in various industries without charging fees for services |
341 |
| 19 |
TiER1 Performancetier1performance.com
TiER1 Performance specializes in bridging strategy and execution by designing solutions to enhance employee engagement and performance for clients |
326 |
| 20 |
Microworks Americamicro-works.us
A global supplier of polyester films with a focus on sustainability, offering eco-friendly products like fully recyclable shrink sleeves and biodegradable films |
255 |
| 21 |
Commonwealth Hotelscommonwealthhotels.com
A world-class hospitality organization managing 54 properties across top hotel brands, focused on guest and associate satisfaction, market premiums, and superior ROI |
251 |
| 22 |
Gilsbargilsbar.com
An insurance service provider with over 50 years of experience, emphasizing proactive client support, partnership building, and integrity in business operations |
242 |
| 23 |
PECveriforce.com
A global leader in supply chain risk management solutions, providing safety training programs and compliance platforms to optimize business performance |
237 |
| 24 |
American Soundamericansound.cc
Providing quality audio-visual design, integration, and support, with top manufacturer representations Locally operated by industry experts with a commitment to customer excellence |
229 |
| 25 |
Regis Hair Salon
A destination for top-notch haircuts, coloring, and salon services, offering professional hair care products to maintain your desired hairstyle and color |
209 |
| 26 | 182 | |
| 27 |
Durhamdurhamstudio.com
Specializing in graphic design and brand-building, the company delivers creative work for diverse brands, non-profits, and private label portfolios, prioritizing lasting partnerships |
181 |
| 28 |
Club Chef, LLCcastellinicompany.com
A regional fresh-cut produce processor with state-of-the-art facilities, dedicated to quality, customer service, innovation, and growth in the foodservice industry |
180 |
| 29 |
Tulane National Biomedical Research Centertnbrc.tulane.edu
Conducts biomedical research to improve human and animal health by developing vaccines, treatments, and diagnostic tools for infectious diseases like COVID-19 and AIDS |
178 |
| 30 |
LLOG Exploration Companyllog.com
A privately owned deepwater Gulf of Mexico operator headquartered in Covington, Louisiana, with a second office in Houston, Texas |
177 |
| 31 |
Otto'sottosonmain.com
Established in 2003, this restaurant located in Covington's Mainstrasse area offers American and Southern-inspired cuisine to its customers |
170 |
| 32 |
Five Seasons Family Sports Clubfiveseasonssportsclub.com
Upscale sports club chain offering a wide range of fitness activities for all ages, ensuring quality family time in a comprehensive environment |
168 |
| 33 |
Life Wirelesslifewireless.com
Provider of free mobile phone service for eligible low-income individuals/families in over 30 states supported by the federal Lifeline program |
166 |
| 34 |
Learning Grovelearning-grove.org
This non-profit organization provides high-quality educational services from prenatal to college and career stages in Northern Kentucky and Southwest Ohio |
164 |
| 35 |
Diversified Foods and Seasonings, LLCdiversified-foods.com
A leading food manufacturing company that creates delicious dishes and develops custom-blended ingredients for retail, food service, and culinary applications |
155 |
| 36 |
Snapping Shoals Electric Membership Corporationssemc.com
An electrical/electronic manufacturing company located in Covington, Georgia, specializing in providing electricity to members in the United States |
151 |
| 37 |
Gulf Crane Services Incgulfcraneservices.com
A leading provider of crane services and products in the Gulf of Mexico, focused on safety, quality, and customer satisfaction |
149 |
| 38 |
DMR/Interactivedmrinteractive.com
A leader in analytics-driven marketing communications for the media industry, founded in 1988 in Cincinnati Visit website or follow on social media for more information |
146 |
| 39 |
Gentis Solutionsgentissolutions.com
Specializes in innovative digital talent sourcing and evaluation, using video technology to match technical professionals with company cultures. |
57 |
| 40 |
Hotel Covingtonhotelcovington.com
Provides luxury guestrooms, apartment-style lofts, and event spaces within restored historical buildings featuring unique restaurants, social lounges, and modern boutique tailoring. |
54 |
| 41 |
Chas. H. Bilz Insurance Agency, Inc.bilzinsurance.com
Independent insurance agency providing personalized risk management solutions, offering a variety of insurance products, exceptional customer service, community involvement, and automation excellence |
28 |
| 42 |
Schram & Associates Services, an Archer Lewis firmschramandassociates.com
A client-focused firm dedicated to building lasting relationships, providing innovative solutions for business and financial success |
21 |
| 43 |
Needzo Incneedzo.com
An online retailer specializing in high-quality products with exceptional customer service, selling on various eCommerce platforms like Amazon, Ebay, and Walmart |
18 |
| 44 |
Connetic Venturesconneticventures.com
An early-stage venture firm using data and AI to evaluate and fund startups, offering various investment vehicles and informative content |
17 |
| 45 |
Piedmont Western Utility Servicespwusi.com
Energy infrastructure solutions provider specializing in partnerships and transparency to drive down costs, offer modernized solutions, and improve forecasting in midstream operations |
9 |
| 46 |
Legacy Financial Advisors, Inclegacyfinancialadvisors.com
The company offers services in investments, insurance, and financial planning to help clients achieve their financial goals and secure their futures |
3 |
| 47 |
Revanta Financial Group LLCrevanta.com
Financial partnership offering products and services to help individuals and businesses achieve their financial goals through sound financial information |
2 |
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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