The professional services firms in Alabama listed here are mostly large companies operating across various sectors. Companies like C.S. provide IT services, Mercer Espaรฑa offers professional training and coaching, and Sedgwick specializes in insurance. Other notable firms include Kelly in staffing and recruiting, Propio Language Services for translation, and CLA (CliftonLarsonAllen) in accounting.
These firms represent a diverse mix of professional services. A common pattern observed is the presence of several civil engineering companies such as HNTB, Terracon, and JMT, indicating a strong focus on infrastructure and development within the professional services landscape in Alabama.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
C.S
The company does amazing things. These amazing things happen daily. They are involved in many amazing projects and activities. |
44,000 | |||
| 2 |
Mercer Espaรฑamercer.com
Mercer is a global consultancy business focused on providing trusted advice and solutions to help organizations build brighter, healthier, and more sustainable futures |
25,000 | |||
| 3 |
Sedgwicksedgwick.com
A global provider of risk, benefits, and business solutions, offering tailored resources to help organizations with health, claims, brand protection, and business continuity |
23,170 | |||
| 4 |
Kellykellyservices.com
A pioneering staffing company connecting over 450,000 individuals with work annually, leveraging expertise in various industries since 1946 |
20,231 | |||
| 5 |
Propio Language Servicespropio.com
Providing technology-driven interpreting, translation, and localization services. Ensuring Limited English Proficient speakers access essential services through certified, ethical interpreters. |
11,345 | |||
| 6 |
CLA (CliftonLarsonAllen)claconnect.com
A company providing industry-focused wealth advisory, outsourcing, audit, tax, and consulting services with a global presence, emphasizing personalized client relationships |
9,503 | |||
| 7 | 7,839 | ||||
| 8 |
Innova Solutionsinnovasolutions.com
Innova Solutions provides transformative digital solutions, specializing in AI, data analytics, cloud computing, and cybersecurity for various industries globally. |
7,703 | |||
| 9 |
Tiger Analyticstigeranalytics.com
A global leader in AI and Analytics, offering fullstack services to Fortune 1000 companies across various industries to achieve real outcomes at scale |
7,353 | |||
| 10 |
Terraconterracon.com
This employee-owned consulting engineering firm offers environmental, facilities, geotechnical, and materials services for diverse private and public clients across numerous locations, both nationally and internationally. |
7,073 | |||
| 11 |
Securitas Technologysecuritastechnology.com
Provides integrated security solutions globally. Focuses on protecting, connecting, and optimizing businesses. Aims to make the world a safer place through its services. |
4,591 | |||
| 12 |
EisnerAmpereisneramper.com
Provides attest services through an independent CPA firm and business advisory, non-attest services via an alternative practice structure for various business sectors. |
4,157 | |||
| 13 |
Pilot Catastrophe Servicespilotcat.com
The company is dedicated to providing quality service in the claims process, driving innovation in the industry, and giving back to communities |
3,992 | |||
| 14 | 2,710 | ||||
| 15 |
Kantar Millward Brownkantar.com
Global consulting company providing evidence-based insights on consumer behavior through data, analytics, and technology to inspire growth for clients worldwide |
2,530 | |||
| 16 |
WilmerHalewilmerhale.com
A leading international law firm with over 1,000 lawyers in 13 offices worldwide, specializing in government, technology, and business law Promotes diversity and public service |
2,356 | |||
| 17 |
Polsinellipolsinelli.com
A top Am Law 100 firm with over 1,000 attorneys nationwide offering legal counsel in various sectors like health care, finance, and technology |
2,292 | |||
| 18 |
FleishmanHillardfleishmanhillard.com
Global communications agency specializing in inclusive culture, diversity initiatives, award-winning public relations, and community service across multiple countries. |
2,252 | |||
| 19 |
Carr, Riggs & Ingramcriadv.com
A nationally-ranked accounting and advisory firm providing traditional accounting services, business support, technology resources, assurance offerings, and helping clients achieve competitive advantage |
2,131 | |||
| 20 |
Onin Staffingoninstaffing.com
A national staffing agency specializing in light industrial and clerical roles, providing personalized guidance, unbeatable benefits, and innovative solutions for workforce challenges |
2,001 | |||
| 21 |
Automated Systems Design, Inc.asd-usa.com
Provides nationwide design, engineering, and project management for Division 27 and 28 construction, including access control, surveillance, A/V, cabling, GPON, sound, and notification systems. |
1,977 | |||
| 22 |
InfoVision Inc.infovision.com
Leading global IT services company offering enterprise digital transformation and modernization solutions across various business verticals, helping clients with innovation and workflow transformation. |
1,970 | |||
| 23 |
Hargrove Engineers & Constructorshargrove-epc.com
A full-service firm providing engineering, procurement, construction management, project management, controls & automation, and technical services to energy, manufacturing, and industrial clients nationwide |
1,954 | |||
| 24 |
Gen II Fund Servicesgen2fund.com
A leading provider offering fund administration services to private capital asset managers and investors with over $1 trillion under administration |
1,846 | |||
| 25 |
Exadelexadel.com
Global software consulting and development company helping enterprises transform businesses with end-to-end software solutions, design, engineering, and managed services. |
1,816 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
Davis Wright Tremaine LLPdwt.com
This company offers custom-tailored service focusing on top-of-market excellence and innovation, partnering with clients to define success together |
1,803 | |||
| 27 |
SWCA Environmental Consultantsswca.com
Experts deliver comprehensive solutions in environmental planning, permitting, cultural resource management, biological services, water resources management, air quality, and sustainability consulting. |
1,746 | |||
| 28 |
Rockefeller Capital Managementrcm.rockco.com
Offers premier financial advisory, wealth, asset, and investment management, connecting clients to unique solutions and opportunities. Serves individuals, families, businesses, and institutions. |
1,744 | |||
| 29 |
Safeguard Globalsafeguardglobal.com
Building adaptive solutions for global organizations in workforce management, recruitment, payroll, onboarding, and more to enable smarter and efficient operations |
1,718 | |||
| 30 |
Fried Frankfriedfrank.com
Advises leading corporations, investment funds, and financial institutions on their most critical legal needs and business opportunities globally. |
1,690 | |||
| 31 |
Dorsey & Whitney LLPdorsey.com
Provides legal advice and business partnership to global companies, specializing in mergers and acquisitions, capital markets, and complex litigation across various industries since 1912. |
1,611 | |||
| 32 | 1,535 | ||||
| 33 | 1,484 | ||||
| 34 |
Bradley Arant Boult Cummings LLPbradley.com
A national law firm providing skilled legal services with exceptional client service and deep industry knowledge, tailored solutions for business clients |
1,462 | |||
| 35 |
Tria Federal (Tria)triafed.com
Provides digital transformation solutions and advisory services to federal health and public safety agencies, addressing capability gaps for faster, smarter operations. |
1,412 | |||
| 36 |
Excel Sports Managementexcelsm.com
Management and marketing agency representing top-tier sports talent, blue-chip brands, and marquee properties across multiple major cities. |
1,407 | |||
| 37 | 1,398 | ||||
| 38 |
Torch Technologies, Inc.torchtechnologies.com
Employee-owned business, consistently recognized for strong performance, positive workplace culture, and ethical practices in consulting and professional services. |
1,338 | |||
| 39 | 1,310 | ||||
| 40 |
Volkert, Inc.volkert.com
A long-standing engineering firm providing design services in transportation, aviation, construction, public works, utilities, property acquisition, and environmental engineering |
1,265 | |||
| 41 |
One World Global Services LLConeworldglobalservices.com
Provides translation, interpretation, and customer care services globally, bridging communication gaps for businesses and helping achieve international goals with cost-effective, on-time solutions. |
1,233 | |||
| 42 |
Primary Servicesprimaryservices.com
Connects accounting, IT, HR, marketing, and administrative professionals with contract, temp-to-perm, and direct-hire positions at Fortune 500 clients in Texas and Oklahoma. |
1,215 | |||
| 43 |
Alliance Technical Groupalliancetg.com
A leading provider of source testing, emissions monitoring, and analytical services in the United States, offering quick proposals, regulatory compliance, and accurate testing |
1,196 | |||
| 44 |
Ultimus Fund Solutionsultimusfundsolutions.com
Provides comprehensive, tech-enhanced fund administration, accounting, middle office, and investor solutions for registered funds, private funds, and public plans, offering tailored services. |
1,098 | |||
| 45 |
Radiance Technologiesradiancetech.com
A 100% employee-owned small business prime contractor specializing in cyber solutions, systems engineering, technology development, intelligence community support, and government program support |
1,081 | |||
| 46 |
Yulista Holding LLCyulista.com
A company in the aerospace and defense industry providing value-added solutions in aviation, ground, logistics, training, management support, engineering, and technical services |
1,056 | |||
| 47 |
3Cloud3cloudsolutions.com
Leading Microsoft Azure partner, offering expertise in infrastructure, data, analytics, and application innovation to solve complex business problems. |
1,042 | |||
| 48 |
EOS Worldwideeosworldwide.com
Provides a business operating system, principles, and tools to entrepreneurial companies for frustration-free organization, growth, and strengthened key components. |
1,010 | |||
| 49 |
New York Life Investment Managementnewyorklifeinvestments.com
Global asset management business offering clients access to specialized investment teams through a family of affiliated boutiques Providing comprehensive investment solutions for clients |
997 | |||
| 50 |
PRODENSAprodensa.com
Supports foreign investors in manufacturing industry with market analysis, expansions, site selection, real estate, startups, shelter, and consulting for ongoing operations. |
992 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in Alabama
- The largest companies in Alabama 2,140
- Multinational companies in Alabama 416
- Manufacturers in Alabama 221
- Companies with in-house R&D in Alabama 214
- Financial services firms in Alabama 209
- Retail chains in Alabama 192
- Critical infrastructure operators in Alabama 186
- Education providers in Alabama 173
- Hardware manufacturers in Alabama 156
- Companies with a mobile app in Alabama 156
- SaaS companies in Alabama 147
- Financial Services companies in Alabama 131
- Software Development companies in Alabama 130
- Healthcare providers in Alabama 124
- Public sector organisations in Alabama 119
- AI companies in Alabama 111
- Hospitals and Health Care companies in Alabama 109
- Aerospace and defence companies in Alabama 104
- Subscription businesses in Alabama 104
- IT Services and IT Consulting companies in Alabama 98
- IT services companies in Alabama 90
- Higher Education companies in Alabama 89
- Corporate groups and holding companies in Alabama 89
- Publicly traded companies in Alabama 85
The same list elsewhere in United States
- Professional services firms in the United States 7,078
- Professional services firms in New York State 955
- Professional services firms in California 880
- Professional services firms in Texas 629
- Professional services firms in Florida 375
- Professional services firms in Virginia 344
- Professional services firms in Illinois 339
- Professional services firms in Massachusetts 249
- Professional services firms in New Jersey 249
- Professional services firms in Georgia 246
- Professional services firms in Pennsylvania 245
- Professional services firms in Ohio 195
- Professional services firms in Maryland 176
- Professional services firms in Michigan 172
- Professional services firms in Washington State 163
- Professional services firms in North Carolina 142
- Professional services firms in Minnesota 125
- Professional services firms in New York 735
- Professional services firms in Chicago 196
- Professional services firms in Houston 156
- Professional services firms in Atlanta 143
- Professional services firms in San Francisco 130
- Professional services firms in Washington 109
- Professional services firms in Los Angeles 108