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About Us

Finding Inspiration in Every Turn

Our Mission: To provide our clients positive, strategic, innovative solutions in an open and professional environment while advancing the overall wellness of our employees.


What does Innleadair mean? The word Innleadair is Scottish Gaelic for engineer, or a person qualified or professionally engaged in engineering.

Innleadair, LLC. is a professional full-service engineering firm serving public and private sectors with offices in Illinois and North Carolina


We offer expertise in Civil, Materials, Mechanical, Electrical and Structural Engineering for the communities we serve. We are licensed in Alabama, Arizona, California, Colorado, Illinois, Massachusetts, Maryland, North Carolina, New Mexico, New York, South Carolina, Texas, and Wisconsin.

Innleadair, LLC currently holds the following certifications:

  • Illinois Central Management Services - (VOSB) Veteran Owned Small Business & (MBE) Minority Business Enterprise

  • City of Chicago - (VOSB) Veteran Owned Small Business & (MBE) Minority Business Enterprise 

  • City of Chicago - (DBE) Disadvantage Business Enterprise

  • State of Wisconsin - (DBE) Disadvantage Business Enterprise & (MBE) Minority Business Enterprise

  • Metropolitan Water Reclamation District - VOSB) Veteran Owned Small Business,  (MBE) Minority Business Enterprise & (SBE) Small Business Enterprise


North American Industry Classification System Codes (NAICS)

  • 541330 Engineering Services/ Engineering Consulting Services

  • 221111 Electric Power Generation

  • 221122 Electric Power Distribution


Standard Industrial Classification (SIC)

  • 8711 Engineering Services


Product and Service Codes (PSC)

  • C211 Engineering - General Services

  • C213 Engineering - Inspection Services

  • C222 Engineering - Electrical systems

  • K059 Modification of Electrical and Electronic Equipment


Our Story

The Owner and Founder 

Mr. Stephenson is the founder and owner of Innleadair LLC. He started his career as an active duty nuclear electrician onboard a nuclear submarine.


Leveraging his benefits from the military, he graduated from the University of Illinois at Chicago with an Electrical Engineering degree and a Masters in Energy Engineering. He is a Licensed Professional Engineer in the following states: Alabama, California, Illinois, North Carolina and South Carolina.

Our Team

Innleadair has a knowledgeable team of eleven professionals with more than 30 years of combined experience. The team consist of Project Engineers, CAD Designers, Drafting Engineers and Administrative experts who are licensed and registered in thirteen states across the United States. 

Our team is committed to providing quality innovative solutions in an ethical manner that serves our clients not only today, but also in the future. Our experience team is ready to learn more about your project and share how we can contribute to its success.

See below some of our satisfied clients that we have been honored to serve. 

Featured Clients

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