Top Companies Hiring for Environmental Scientist Jobs

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle — from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com.

Tetra Tech is a leading, global provider of consulting and engineering services. We are differentiated by Leading with Science® to provide innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, sustainable infrastructure, renewable energy, and international development. With more than 25,000 associates worldwide, Tetra Tech provides clear solutions to complex problems. 

Arcadis is the leading global Design & Consultancy firm for natural and built assets. Applying our deep market sector insights and collective design, consultancy, engineering, project and management services. We work in partnership with our clients to deliver exceptional and sustainable outcomes throughout the lifecycle of their natural and built assets. We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life.

We deliver impactful global solutions to create a more connected, sustainable world — from intelligence to infrastructure, cybersecurity to space exploration. Our 52,000 employees across 50 countries work every day, challenging the expectations of today to reinvent the way we’ll all live tomorrow.

Talk about an organization that's gone green. The US Environmental Protection Agency (EPA) develops and enforces environmental policy and regulations throughout the country. It is responsible for administering all or part of a multitude of laws, such as the Clean Air Act, the Safe Drinking Water Act, and the ubiquitous National Environmental Policy Act. Besides working to ensure compliance with federal environmental rules, the agency provides support for state environmental protection programs. The agency was established in 1970, the same year as the first Earth Day, in response to growing concerns over air, water, and soil pollution. It is led by an administrator appointed by the president.

Freeport is a Fortune 200 company and a leader in the metals industry, with a focus on copper. Headquartered in Phoenix, Arizona, the company operations include those in the southwestern United States, South America and Indonesia. By responsibly producing copper and molybdenum, Freeport aims to create brighter outcomes for our community and the world. Visit www.FMJobs.com to learn more.

CDM Smith provides lasting and integrated solutions in water, environment, transportation, energy and facilities to public and private clients worldwide. As a full-service consulting, engineering, construction, and operations firm, we deliver exceptional client service, quality results and enduring value across the entire project life cycle. Organization - Closely aligned with our clients, CDM Smith provides services through the following major business groups: Client Services, Federal Services, Industrial Services, Public Services (North America, Latin America, and Asia). These units are supported by the Consulting & Engineering Divisions and the Construction Division—all working together to deliver integrated consulting, engineering, construction, and operations services worldwide. CDM Smith offers full services—consulting, engineering, construction, and operations—across the project life cycle in water, environment, transportation, energy, and facilities.

Groundbreaker. Game changer. Pioneer. Since the 1960s TRC has set the bar for clients who require more than just engineering, combining science with the latest technology to devise innovative solutions that stand the test of time. Today we are a global consulting firm providing environmentally advanced and technology-powered solutions for the oil and gas, power and infrastructure markets. TRC’s 5,000 professionals work with a broad range of commercial, industrial and government clients and the communities they serve. We are in search of bright and innovative professionals who want to use their unique talents to solve the challenges of making the Earth a better place – community by community and project by project. Interesting, meaningful work is just the beginning of what’s special about a career at TRC. With over 120 offices and a wide variety of clients across the globe, TRC is focused on providing opportunities for employees to move and grow within different areas of the company.

Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon currently has more than 5,000 employees in more than 175 offices with services available in all 50 states. Terracon’s growth is due to valued employees exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace. Terracon’s vision of “Together, we are best at people” is demonstrated through our excellent compensation and benefits package. Based on eligibility, role and job status, we offer many programs including medical, dental, vision, life insurance, 401(k) plan, paid time off and holidays, education reimbursement, and various bonus programs.