Tetra Tech competitors and similar companies

1. 

   SMEC

   smec.com

   Provider of infrastructure engineering consultancy services based in Sydney, Australia. The company offers feasibility studies, design, tender and contract management, construction, supervision and management on major infrastructure projects globally, enabling clients to avail quality construction consultancy services.

   Australia · 7,367 employees on LinkedIn

   • Both hiring an engineering leader
2. 

   Arcadis

   arcadis.com

   Arcadis is the leading global design & consultancy organization for natural and built assets. We are over 29,000 people, active in more than 70 countries that generate €3.4 billion in revenues.

   Netherlands · 42,064 employees on LinkedIn

   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
3. 

   Weston Solutions

   westonsolutions.com

   Weston Solutions solves complex environmental and infrastructure engineering challenges. Our engineers and scientists are committed to sustainability.

   United States · 1,464 employees on LinkedIn

   • Both based in United States
   • Both use Reddit, Elementor and 1 more technology
4. 

   Jacobs

   jacobs.com

   Jacobs Solutions is a global provider of engineering, design, procurement, construction, and maintenance services as well as cyber engineering and security solutions. The firm serves industrial, commercial, and government clients in a wide variety of sectors, including water, transportation, healthcare, technology, and chemicals. Jacobs Solutions employs approximately 60,000 workers. The company generated $12 billion in revenue in fiscal 2025.

   United States · 66,983 employees on LinkedIn

   • Both hiring an engineering leader
   • Both based in United States
5. 

   Hatch Ltd

   hatch.com

   Provider of technical and strategic consulting services intended for the mining, metallurgical, energy and infrastructure industries. The company offers project management, engineering, process development, and construction management, thereby enabling clients to optimize environmental protection, economic prosperity and cultural vibrancy.

   Canada · 11,431 employees on LinkedIn

   • Both hiring an HR leader
   • Both use Arbor.js
6. 

   AECOM

   aecom.com

   Aecom is one of the largest global providers of advisory, design, and engineering services. It serves a broad spectrum of end markets, including water, transportation, and environment. Based in Dallas, Aecom employs 51,000 people. The company generated $16.1 billion in sales in fiscal 2025.

   United States · 60,210 employees on LinkedIn

   • Both hiring an engineering leader
   • Both based in United States
7. 

   Black & Veatch

   bv.com

   Black & Veatch is an employee-owned engineering, procurement, consulting and construction company with a 100-year legacy of innovations in sustainable infrastructure. Black & Veatch utilizes international resources to develop and support emerging technologies in healthcare, renewable energy, transportation, water infrastructure, biotech, housing, and artificial intelligence.

   United States · 11,143 employees on LinkedIn

   • Both hiring an engineering leader
   • Same size: 10,001-50,000 employees
   • Both based in United States
   • Both use Arbor.js
8. 

   Schnabel Engineering

   schnabel-eng.com

   Schnabel Engineering builds stronger, safer communities by solving complex infrastructure problems, managing risk, and providing specialized expertise.

   United States · 723 employees on LinkedIn

   • Both hiring fast
   • Both based in United States
9. 

   Michael Baker International

   mbakerintl.com

   Provider of engineering and consulting services intended to solve the world's complex infrastructure challenges. The company offers services including architectural designing, environmental assessments, program management and landscape architecture, ensuring the United States federal, state and municipal governments, foreign allied governments and a wide range of commercial clients attain personal and professional satisfaction and make a demonstrable difference in the communities.

   United States · 4,452 employees on LinkedIn

   • Both hiring an engineering leader
   • Both based in United States
10. 

    NV5

    nv5.com

    NV5 Global Inc is a provider of technology, conformity assessment, and consulting solutions to public and private sector clients in the infrastructure, utility services, construction, real estate, environmental, and geospatial markets, operating nationwide and abroad. The Company's clients include the U.S. Federal, state and local governments, and the private sector. It also serve quasi-public and private sector clients from the education, healthcare, utility services, and public utilities, including schools, universities, hospitals, health care providers, and insurance providers. The operating business segments are Infrastructure, Building, Technology & Sciences, and Geospatial Solutions. The maximum revenue derives from the infrastructure segment.

    United States · 3,637 employees on LinkedIn

    • Both hiring an engineering leader
    • Both based in United States
    • Both use Reddit, Elementor and 2 more technologies

Questions about Tetra Tech

How many employees does Tetra Tech have?

Tetra Tech has 27,502 employees on LinkedIn, up 1% over the last 12 months.

Where is Tetra Tech headquartered?

Tetra Tech is headquartered in Pasadena, United States.

Who are Tetra Tech's competitors?

Companies similar to Tetra Tech include SMEC, Arcadis, Weston Solutions, Jacobs and Hatch Ltd.

What technologies does Tetra Tech use?

Tetra Tech's website uses Cloudflare, Arbor.js, Vimeo, Yoast SEO for Shopify and jQuery Migrate and 24 more.

When was Tetra Tech founded?

Tetra Tech was founded in 1966.