Where We Work
National EHS Compliance Infrastructure
One team standardizing your environmental program across every facility. iSi serves clients in 40+ states with primary markets in Kansas City, Tulsa, Oklahoma City, Omaha, and Northwest Arkansas — senior expertise, consistent standards, no subcontractors.
Primary Markets
Our six core markets where iSi has the deepest presence, fastest response times, and strongest client relationships.
Wichita, KS
iSi headquarters — same-day on-site response for industrial hygiene and EHS consulting.
View Wichita Services →Kansas City, MO
Serving KC's manufacturing, automotive, food processing, and pharmaceutical sectors.
View Kansas City Services →Tulsa, OK
Oil & gas, petrochemical, refineries, and aerospace maintenance operations.
View Tulsa Services →Oklahoma City, OK
Aerospace, defense (Tinker AFB), energy, and food processing operations.
View Oklahoma City Services →Omaha, NE
Food processing, manufacturing, logistics, and data center operations.
View Omaha Services →Northwest Arkansas
Poultry processing, food manufacturing, logistics (J.B. Hunt), and Walmart supplier operations across Bentonville, Fayetteville, Rogers, and Springdale.
View Northwest Arkansas Services →Regional Markets
Additional metros where iSi delivers same-day or next-day consulting. Full environmental, safety, and IH services available in every market.
National Coverage
iSi operates across 40+ states. If your location is not listed above, contact us directly — we serve manufacturers and industrial operators nationally and can scope your project regardless of location. One team. One retainer. 40 states.
Request a Quote
Same-day response — most requests hear back in under 30 minutes.