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Largest Indianapolis-Area
Environmental Consulting Firms

(Ranked by 2019 local environmental consulting billings)

Rank 2019 rank	Firm Address Telephone / Website	Local Env. Cons. Billings: 2019 2018	Local FTE Employees % of Total Billings	Environmental: Scientists Engineers	Certified: Professional Geologists Hazmat Managers	Primary Services	Head(s) of Local Office, Title(s) Owner(s)	Estab. Locally
1 1	August Mack Environmental Inc. 1302 N. Meridian St., Suite 300, 46202 317-916-8000 / augustmack.com	$22.2 million $21.7 million	110 75	DND 3	9 11	health and safety compliance, due diligence and investigation, remediation and closure	John Spearin, corporate manager Geoffrey A. Glanders; Bryan K. Petriko	1988
2 2	Patriot Engineering and Environmental Inc. 6150 E. 75th St., 46250 317-576-8058 / patrioteng.com	$20.7 million $20.6 million	170 100	35 20	12 5	site assessments, training, permitting, UST, voluntary remediation program, risk integrated system of closures, IH, asbestos	Doug Zabonick, president Doug Zabonick	1995
3 3	Commonwealth Engineers Inc. 7256 Company Drive, 46237 317-888-1177 / commonwealth-engineers.com	$17.8 million $18.7 million	100 100	DND DND	DND DND	wastewater, stormwater, potable water regulatory compliance, dams and levees, energy savings, electrical, instrumentation and control, power quality	Albert Stong, president Albert Stong; Brian Desharnais(1); Ann Dryer; Brady Dryer; Roger Kottlowski; Benjamin Adams; David Hynes; Jeremy Hardy; Andrew Robarge; Robert Bellucci; Eric Parsley; Toby Church; Theresa Criss-Hartwig; Drew Flamion	1974