Fast, Accurate Data You Can Trust

Accurate, timely data is what you need to stay on top of ever-growing demands of your environmental air program. Since 2000, GCI (Grace Consulting, Inc.) has grown to be the largest privately-held stack testing company by prioritizing quality data and client satisfaction. With an experienced industry leader on your side, you can have confidence in your results, report with timely data, achieve faster and flexible scheduling, and meet corporate objectives.


GCI is a long-standing, leading air emissions testing company that isn’t owned by large investment banks or big equity firms, and we aren’t publicly-traded like some of those other outfits where you and your test program might get lost in the shuffle. Since 2000, the owners of GCI have been the ones performing our testing. Some of our principals have over 30-years of testing experience, but all of our crew chiefs have been doing this for at least 10 years or more.

With GCI, you get the strength of a large, well-established company, yet without any of their headaches; and you get the friendly, flexible nimbleness of a small shop without any of its instability. And, our experienced ownership can guarantee you the fast, accurate testing you can trust, providing you the confidence in your environmental program that you need.

Start Compliance The Right Way

It’s easy to work with Grace Consulting’s air emissions’ testing services. Just follow the steps below.

Schedule a Test

After a complimentary technical review that may include a site visit, you’ll receive a customized proposal, schedule a test, then prepare with our site-specific test plan. 


We often set up the day before to ensure things run smoothly on testing day.

On-Site Test

We will actively communicate the preliminary data and coordinate with you throughout testing. 

Get Results

We move fast so you can take action on the preliminary raw data. You’ll get a draft report within one to three weeks. 

Plan for Emissions Testing

“Grace has always provided a great service and I mostly appreciate the ease and flexibility in scheduling all of our tests. Thanks for all the effort you guys give. It is truly a pleasure working with you all.”

– John Gulasy, Dynegy Miami Fort Station


Ohio • 510 Dickson Street, Wellington, OH 44090
North Carolina • 1855 Sipe Road, Conover, NC 28613
Indiana • 684 Tower Road, Plainfield, IN 46168


510 Dickson Street, Wellington, OH 44090
North Carolina
1855 Sipe Road, Conover, NC 28613
684 Tower Road, Plainfield, IN 46168




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