Air Resource Specialists provides environmental compliance consulting to regulated entities located across the U.S. For example, ARS provides technical and regulatory support on Clean Air Act permitting for capital projects, including air permit applications for new/modified plant construction (PSD, Title V, minor source, etc.). Under the Clean Water Act, we prepare wastewater and stormwater discharge applications under the National Pollution Discharge Elimination System (NPDES) program. In support of these air and water discharge permit applications, we provide technical and regulatory analyses including: emission calculations; air quality dispersion modeling; and emissions control technology assessments for selection of controls meeting standards for Reasonably Available Control Technology (RACT), Best Available Control Technology (BACT), and/or Lowest Achievable Emission Rate (LAER)

Defour Group consists of former economists and engineers from the automotive industry. Our expertise is in alternative regulatory systems, fuel ethanol market economics and vehicle powertrains. In the last 14 years, we have done research for automakers, ethanol producers and dealer organizations.

Merjent, Inc. provides a client-focused approach in the pursuit of people and project success. We offer a wide range of environmental, engineering, field, land, and restoration services to clients in the renewable fuels industry and other industry sectors. Our team members' extensive experience serving the biofuels industry dates back to 1999, ensuring effective and comprehensive solutions for our clients. We also have extensive carbon capture permitting experience. Our biofuels and carbon capture services include but are not limited to pipeline route permitting, RFS 3rd party engineering reviews, LCFS pathway applications/verification, environmental permitting (air, water, waste, tanks), air dispersion modeling, environmental, health and safety (EHS) program/plan development, training, and compliance audits, process hazard analyses (PHAs), dust hazard analyses (DHAs), CCUS monitoring and reporting programs, and site restoration.

NAQS-ENVIRONMENTAL EXPERTS specializes in providing consulting services on matters related to federal, state, and local air, water, and waste related regulations. Our in depth understanding of the federal, state, and local regulations, regulatory processes (permitting and compliance), and agencies allows us to assist you with all your air and water quality regulatory needs. We partner with clients on a wide variety of projects and complete them in the most effective and timely fashion. We help build credibility of your projects and create top notch products for submission to the regulatory agencies, legal and operational guidance, and media use.

As an environmental engineering and consulting company, Pinnacle provides a full range of environmental, industrial, civil engineering, and remedial field services - serving the expanding environmental needs of railroad, industrial, commercial, utility, manufacturing, and renewable energy clientele.