By Ashley Robinson Florida’s rapid population growth, coastal exposure and expanding transportation network create constant demand for experienced engineering firms. New roads, airports, housing projects, water systems and public facilities must be designed around flooding, hurricanes, environmental rules and the state’s unique ground conditions.
The following companies stand out in 2026 for their Florida presence, technical capability, project range and experience serving government and private clients. This list focuses on civil, structural, transportation, environmental and infrastructure engineering firms rather than manufacturers or defence companies.
1. Kimley-Horn
- Corporate Headquarters: Raleigh, North Carolina
Main Service Area: Statewide, with more than 22 Florida offices
Best For: Civil engineering, transportation and private land development
Kimley-Horn has one of the strongest engineering networks in Florida. Its offices stretch from the Panhandle to South Florida, with locations in Orlando, Jacksonville, Tampa, Miami, Fort Lauderdale, Sarasota, Naples, Fort Myers, Gainesville, Lakeland and other cities.
The company provides civil engineering, roadway design, traffic planning, water and wastewater engineering, aviation consulting, structural engineering, landscape architecture and development services. It works with public agencies as well as developers, property owners and institutional clients.
Kimley-Horn is particularly strong when a project requires several services under one team. Its extensive Florida network gives clients access to engineers familiar with regional permitting, coastal resilience, drainage and local development regulations.
2. RS&H
- Headquarters: Jacksonville, Florida
Main Service Area: Statewide, with a particularly strong presence in North and Central Florida
Best For: Airports, highways, buildings and major public infrastructure
RS&H is one of Florida’s most important homegrown engineering firms. Founded in Jacksonville, it has developed into a national architecture, engineering and consulting company while retaining its headquarters in Florida.
Transportation and aviation are two of its greatest strengths. RS&H works on highways, bridges, airports, transit systems and large transportation programmes. It also provides structural, electrical, mechanical, water-resources and environmental engineering.
The company has extensive experience working with the Florida Department of Transportation and other public agencies. It is a strong choice for technically demanding projects that require engineering, planning, architecture and programme management within one organisation.
3. AtkinsRéalis
- U.S. Headquarters: Tampa, Florida
Main Service Area: Statewide, including Tampa, Orlando, Miami, Fort Lauderdale, Tallahassee, Melbourne and DeLand
Best For: Transportation engineering and construction oversight
AtkinsRéalis is a global engineering organisation with unusually deep roots in Florida. Tampa has served as the home of its U.S. business since 1960, and the company continues to play a major role in the state’s transportation development.
Its Florida teams work on highways, bridges, rail, water resources, resilience planning, programme management and construction engineering and inspection. The company has supported major Florida projects, including interstate improvements and the replacement of the Howard Frankland Bridge.
AtkinsRéalis is particularly well suited to large government contracts where safety, scheduling, inspection and coordination between multiple contractors are essential. Its combination of global expertise and long-term FDOT experience earns it a high position on this list.
4. WGI
- Headquarters: West Palm Beach, Florida
Main Service Area: Statewide, with offices in West Palm Beach, Miami, Fort Lauderdale, Port St. Lucie, Orlando, Tampa, Jacksonville, Gainesville and Tallahassee
Best For: Real estate development and technology-led infrastructure design
WGI was established in West Palm Beach and has grown into a national multidisciplinary design and professional-services firm. It remains one of Florida’s leading locally headquartered engineering businesses.
Its services include civil, structural, transportation, traffic and mechanical-electrical-plumbing engineering. WGI also provides surveying, geospatial mapping, subsurface utility engineering, parking design, landscape architecture and urban planning.
The company is a strong choice for developers and municipalities because it can support a project from initial surveys and planning through engineering and construction. WGI is also known for using digital tools, advanced mapping and new-mobility planning in its designs.
5. AECOM
- Global Headquarters: Dallas, Texas
Main Service Area: Major Florida markets, including Miami, Orlando, Tampa, Jacksonville, Tallahassee and South Florida
Best For: Large, complex infrastructure and programme-management assignments
AECOM is one of the world’s largest infrastructure-consulting companies and maintains a substantial operation in Florida. Its scale allows it to bring specialised engineering knowledge to projects that may be difficult for smaller firms to manage alone.
The company works across transportation, water, environmental services, buildings, energy and construction management. Its Florida experience includes airports, transit connections, hospitals, sports facilities, mixed-use developments and major urban projects in Miami and other metropolitan areas.
AECOM is especially valuable for large public-sector or institutional assignments involving many technical disciplines, contractors and stakeholders. Smaller private projects may receive more personal attention from a regional firm, but AECOM remains a major force in Florida engineering.
Factors Considered for This Ranking
- Number and distribution of Florida offices
- Experience with FDOT and local governments
- Civil, structural and transportation capabilities
- Water, environmental and resilience expertise
- Ability to handle large or technically complex projects
- Work across both public and private sectors
- Florida headquarters or long-standing state presence
- Planning, surveying and construction-management services
Conclusion
Kimley-Horn leads the list because of its extensive Florida office network and strong civil-engineering capabilities. RS&H stands out as a Florida-headquartered leader in aviation, transportation and building design.
AtkinsRéalis brings decades of FDOT experience and maintains its U.S. headquarters in Tampa. WGI is a leading Florida-founded choice for development and municipal infrastructure, while AECOM offers global resources for large and complicated projects.
Before appointing a company, clients should review projects completed in the same county and engineering discipline. They should also confirm Florida professional licences, insurance, project-team experience, fee structure and responsibility for permits and construction inspections.