
ATSI, Inc.
Changing the World Since 1977
Amherst, NY
Explore capabilities, project experience, and office locations to build your shortlist.

Changing the World Since 1977
Amherst, NY

Exceptional Service is all we Sell
Geotechnical Engineering and Subsurface Investigations.
Watsonville, CA
Building Resilient Industrial Processes
Vadnais Heights, MN

Integrated Engineering, Environmental, and IT Solutions for Efficiency, Safety, and Sustainability

Project Development and FEED 0 / FEED 1 / FEED 2 / FEED 3 Phases.
Fargo, ND+4
Pilot Plant & Laboratory Safety Consulting
Basking Ridge, NJ

Process Design and Improvement for Biorefinery Systems
West Lafayette, IN

Sustainability through responsible engineering of the built environment.
Austin, TX

Process Design & Development and Equipment Specification & Procurement.
We shape a better world
Multi-discipline industrial engineering and owner's representation services
Bothell, WA

We know the science behind your concrete.
Mendota Heights, MN
Sound Engineering Solutions for Manufacturing and Commercial Facilities
Caguas, PR
Premium Suppliers of Engineering, Procurement and Construction Management Services
Mt. Vernon, IN+1

Engineering Creative Solutions
Chandler, AZ

Designing and Building Success

Comprehensive engineering, construction, maintenance, turnarounds, and specialty services for industrial facilities.
Baton Rouge, LA+3

Experts in Nuclear Professional & Technical Services
Wheat Ridge, CO+6

Alkali metals and chemical process engineering experts
New Freedom, PA

Separation technologies and feed products for ethanol producers.

Agri-tech engineering and production technology.
Cedar Rapids, IA

State-of-the-Art Process Design for Fuel Ethanol Plants
Katy, TX

Mechanical and Plumbing Engineering and Process Engineering.
Long Beach, CA