Tetra Tech, Inc.
Tetra Tech, Inc. is a global provider of consulting, engineering, and technical services focused on water, environment, infrastructure, resource management, energy, and international development. With a team of 16,000 experts across 60 disciplines, the company aims to improve quality of life through innovative solutions driven by science and technology. Through federal contract and grant awards, Tetra Tech provides a wide range of services to government agencies, including environmental remediation, emergency preparedness, infrastructure development, technical assessments, and various specialized services to support government initiatives and programs. The company's expertise spans environmental planning, field sampling, data analysis, remedial design, construction management, and long-term system operations and maintenance.
As a prime contractor, Tetra Tech has been awarded numerous contracts across multiple federal agencies. For the Environmental Protection Agency (EPA), the company has provided extensive support to the Superfund program, conducting site investigations, groundwater and soil sampling, monitoring well installation, removal action and remedial design planning, vapor intrusion mitigation, construction oversight, and data management. Tetra Tech has also supported brownfield assessments and emergency preparedness activities for the EPA. For the Department of Defense, the company has delivered architectural and engineering services, including design and renovation of military facilities, infrastructure upgrades, and environmental compliance support. The U.S. Agency for International Development (USAID) has utilized Tetra Tech's expertise in international development projects, focusing on areas such as water resource management, climate change adaptation, and sustainable agriculture. Other notable clients include the U.S. Army Corps of Engineers, Department of Energy, and National Aeronautics and Space Administration (NASA), for whom Tetra Tech has provided environmental restoration, compliance services, and technical support for various programs.
In the realm of federal grants, Tetra Tech has participated in diverse projects as both a prime recipient and subrecipient. The company has supported USAID-funded initiatives such as the Feed the Future Innovation Lab for Small-Scale Irrigation and Mechanization, contributing technical expertise in water management and agricultural engineering. Tetra Tech has also been involved in projects related to invasive carp removal and marketing in the Great Lakes region, working with state agencies to develop branding strategies and expand markets for harvested carp. The company has supported public health emergency preparedness initiatives and has assisted in developing comprehensive emergency response plans for various facilities. Additionally, Tetra Tech has contributed to oceanographic and environmental research projects, including the development of cloud-native workflows for data management and support for the Integrated Ocean Observing System (IOOS) program.
Tetra Tech holds several significant Indefinite Delivery Vehicles (IDVs) with federal agencies. A notable example is the $450 million Superfund and Great Lakes Architecture & Engineering Services (SFGLAES) contract with EPA Region 5, which enables Tetra Tech to provide a wide range of services including site assessment, design, construction management, and technical support for contaminated site remediation. The company also holds a $46.9 million Region 3 Superfund Technical Assessment & Response Team VI (START VI) contract with the EPA. For NASA, Tetra Tech was awarded a $375 million multiple-award IDV under the NASA Environmental Restoration and Compliance Contract (NERCC) to provide environmental restoration and compliance support services across all NASA centers and facilities. The U.S. Army Corps of Engineers has awarded Tetra Tech multiple IDVs, including a $200 million contract for architectural and engineering services in the Great Lakes and Ohio River Division. These IDVs position Tetra Tech as a primary contractor for critical environmental, engineering, and technical services across multiple federal agencies, supporting a wide range of government missions and initiatives.
LMRMKLLL3LG5 541330
Not listed 3475 E Foothill Blvd, Pasadena, CA 91107, USA
2/20/02 11/6/25 Solv LLC
Solv LLC, doing business as Mangi Environmental Group, is a for-profit limited liability company that provides specialized environmental consulting and support services to U.S. federal government agencies. The company offers a wide range of services including environmental assessments, regulatory compliance, impact analyses, planning, and sustainability projects. Mangi Environmental Group has extensive experience supporting various federal agencies on projects involving statutes like the National Environmental Policy Act (NEPA) and National Historic Preservation Act (NHPA). The firm's expertise spans environmental planning, cultural resources management, energy optimization, water efficiency, commissioning, and NEPA compliance.
Through its federal contract awards, Mangi Environmental Group has provided diverse environmental services to numerous agencies. For the National Institute of Standards and Technology, the company delivered environmental consulting services for CHIPS-related projects. The U.S. Immigration and Customs Enforcement engaged Mangi for energy, sustainability, and environmental services. The Department of Energy's Office of Energy Efficiency and Renewable Energy utilized Mangi's services for environmental assessments. The USDA Rural Utilities Service contracted Mangi for environmental review support services related to the Inflation Reduction Act. Other clients include the Army Corps of Engineers, for whom Mangi conducted cultural resource surveys and NEPA documentation, and the Federal Bureau of Investigation, which engaged Mangi for building energy performance optimization and commissioning services. Many of these contracts were awarded as small business set-asides, reflecting Mangi's status as a small business entity.
Mangi Environmental Group holds several significant Indefinite Delivery Vehicles (IDVs) with federal agencies. These include an $8 billion multiple-award Indefinite Delivery Contract under NOAA's ProTech 2.0 Fisheries Domain program, allowing for streamlined procurement of professional and technical services. The Export-Import Bank awarded Mangi an $8.65 million Blanket Purchase Agreement (BPA) for NEPA and other environmental support services. The USDA granted a $297 million BPA under its Master Environmental and Technical Support Services (METSS) program. The Department of Energy awarded a $108 million BPA for specialized environmental consulting. The Army Corps of Engineers issued a $49 million multiple-award IDV for cultural resource services. Additionally, Mangi holds a $10 million single-award BPA with the National Park Service for energy and water audits. These IDVs enable various agencies to efficiently procure Mangi's broad range of environmental planning, compliance, and sustainability services through streamlined task order processes.
F3UJJU6BFJ69 541620
Not listed 8201 Greensboro Dr #700, McLean, VA 22102, USA
7/17/01 8/20/25 Trinity Engineering Associates, Inc.
Trinity Engineering Associates, Inc. is a women-owned, 8(a) certified small business that applies its expertise across a variety of technical topics including emergency response, hazards analyses, and environmental consulting to help clients meet their goals. The company has been registered in SAM.gov since 2001 and carries certifications as an SBA Certified Economically Disadvantaged Women-Owned Small Business and SBA Certified Women-Owned Small Business.
Trinity Engineering Associates has an extensive history of providing professional and technical services to federal agencies through prime contracts and subcontracts. The Department of Energy has awarded Trinity Engineering Associates numerous task orders and delivery orders across its Office of Science, Office of Environmental Management, and National Nuclear Security Administration. These contracts have spanned a diverse array of environmental and engineering support services, such as technical support for the Expended Core Facility, environmental restoration and waste management activities, information resource management, emissions reporting system support, inventory management quality control, emergency response services, and hazards analyses consulting. Trinity Engineering Associates has secured many of these contracts through set-aside designations like Woman-Owned Small Business Sole Source and by leveraging its status as an SBA certified Economically Disadvantaged Woman-Owned Small Business. The company has also received contracts from the Environmental Protection Agency, including a recent $50,957.40 call order to provide support for EPA's Emission Reporting data flow and Quality Assurance Project Plan update related to its Inventory Management System.
In 2022, the Environmental Protection Agency awarded Trinity Engineering Associates a massive single-award blanket purchase agreement with a $5.776 billion ceiling value to provide environmental, analytical, research, technical, and hybrid support services through June 2027. This indefinite-delivery, indefinite-quantity contract allows Trinity Engineering Associates to receive task orders from EPA for a wide range of services supporting the agency's air pollution regulation and environmental protection mission. Already, Trinity Engineering Associates has received a $50,957.40 firm fixed price call order under this BPA from EPA's Office of Air and Radiation to provide emissions reporting system and quality management services over a six-month period. The BPA is issued against Trinity Engineering Associates' Multiple Award Schedule contract vehicle with the General Services Administration.
CSQSDXKBHNB3 541620
Not listed 25 W Fountain Ave, Cincinnati, OH 45246, USA
7/24/01 7/15/25 Alliant Corporation
Alliant Corporation is a Service Disabled Veteran Small Business that specializes in scientific and technical services for commercial clients and federal and municipal governments. They provide consulting and professional services for technical and scientific needs.
Alliant Corporation has received prime federal contract awards to provide a variety of products and services to agencies including the Department of the Interior Bureau of Reclamation, the Army Corps of Engineers, and the Department of Veterans Affairs. These have included web-based software subscriptions, construction services, environmental engineering services, demolition and remediation services, maintenance and operations support services, and medical equipment. Awards have been made on a firm fixed price basis, with no set-aside designations. As a subcontractor, Alliant Corporation has provided services to prime contractors Fluor Federal Petroleum Operations and Consolidated Nuclear Security.
Alliant Corporation holds several indefinite delivery contracts and blanket purchase agreements to provide services on an as-needed basis. These include an IDIQ for cost engineering services supporting Army Corps of Engineers projects in the Huntington District, an IDIQ for demolition and environmental remediation across the Great Lakes and Ohio River Division, a single-award BPA to provide construction and maintenance services at Fort Campbell, and a spot on a Multiple Award Task Order Contract vehicle for architectural and engineering environmental services with the Army Corps of Engineers. Task orders issued under these vehicles have involved environmental investigation, remediation, and long term maintenance services at contaminated sites.
LPBSBVFHF9N5 541620
Not listed 320 N Cedar Bluff Rd #200, Knoxville, TN 37923, USA
11/14/01 8/15/25 Toeroek Associates, Inc.
Toeroek Associates, Inc., doing business as Toeroek Associates Inc., is a for-profit environmental services provider specializing in supporting federal agencies through contract awards for environmental remediation, compliance, and enforcement activities. The company delivers a wide range of technical, analytical, and field services related to contaminated site assessment, cleanup, and monitoring under various environmental regulations. Toeroek Associates has extensive experience supporting programs such as the Environmental Protection Agency's Superfund and Resource Conservation and Recovery Act initiatives, as well as the Bureau of Land Management's efforts to address orphaned oil and gas wells on public lands.
Through its federal contract awards, Toeroek Associates has provided a diverse array of environmental services across multiple agencies. For the EPA, the company has conducted Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) enforcement support activities, including potentially responsible party searches, litigation assistance, and site assessments at Superfund locations across the western United States. Toeroek has also performed Resource Conservation and Recovery Act (RCRA) inspections, corrective action support, and permitting assistance across several EPA regions. For the Bureau of Land Management, the company has delivered environmental support services for the Federal Orphaned Well Program, including compliance reviews, well investigations, air quality monitoring, and plugging and abandonment design. Additional work has included conducting preliminary assessments and site inspections for the U.S. Forest Service at abandoned mine sites. Many of Toeroek's prime contract awards have been issued as small business set-asides, and the company has also served as a subcontractor to larger firms like Noblis, Inc. and Science Applications International Corporation on Department of Defense projects.
Toeroek Associates holds two significant Indefinite Delivery Vehicles (IDVs) that showcase its capabilities in environmental services. The first is a $50 million single-award IDV with the Bureau of Land Management for environmental support services under the Federal Orphaned Well Program. This contract, awarded in March 2023, allows Toeroek to provide a full range of services including NEPA compliance support, well investigations, plugging and abandonment design, environmental testing, and project inspections through March 2028. The second major IDV is a $15 million multiple-award contract with the EPA for CERCLA Enforcement Support Services in Regions 7, 8, 9, and 10. Awarded in March 2022, this small business set-aside enables Toeroek to deliver enforcement support, site assessments, remedial investigations, and other technical assistance at Superfund sites across the western United States through February 2025. Numerous task orders have been issued under both IDVs, demonstrating Toeroek's ongoing role in supporting federal environmental programs and its ability to provide comprehensive environmental services to multiple government agencies.
M73YRKYDXMC7 541620
Not listed 300 Union Blvd #520, Lakewood, CO 80228, USA
1/14/02 5/10/25