Skip to content

Engineering Firms.us

Directory Locations Services Industries

Loading account…

Loading directory…

Engineering Firms.us

© 2026 Demand Delta

Firm types About Directory support Privacy Terms

Find the right engineering partner.

Explore capabilities, project experience, and office locations to build your shortlist.

Find an engineering firm

Refine your search

2

St. Louis×permitting×

State

MO3

IL2

AL1

AR1

AZ1

City

St. Louis3 Chicago2 Atlanta1 Austin1 Baltimore1

Firm types

Environmental Engineering3 Water / Wastewater Engineering3 Structural Engineering2 Civil Engineering1 Emissions Control1

Industries

Government2 Industrial2 Wastewater2 Water Supply2 Bridges1

Services

Permitting3 Abatement Oversight, Design Plans, Specifications and Bid Documents1 Air Monitoring and Clearance Testing1 Air Plans1 Air Quality Management1

St. Louis permitting

Horner & Shifrin, Inc.

Building Services and Drinking Water.

St. Louis, MO+8

Matches: Permitting · Office city: St. Louis

HBK Engineering, LLC

A Proven Leader in Utility Engineering

Firm types About Directory support

Chicago, IL

+28

Matches: Permitting · Office city: St. Louis

NPN Environmental Engineers, Inc.

Committed to providing practical and economical environmental solutions with foremost attention to quality and liability protection.

St. Louis, MO

Matches: Permitting · Office city: St. Louis