Stephen Defibaugh, P.G, C.Hg.
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Stephen Defibaugh, P.G, C.Hg. Email & Phone Number

Principal Geologist at Montrose Environmental Group
Location: Mission Viejo, California, United States 7 work roles 1 school
2 work emails found @montrose-env.com LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 86%

Contact Signals · 2 work emails

Work email s****@montrose-env.com
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Current company
Montrose Environmental Group
Role
Principal Geologist
Location
Mission Viejo, California, United States
Company size
2274 employees

Who is Stephen Defibaugh, P.G, C.Hg.? Overview

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Quick answer

Stephen Defibaugh, P.G, C.Hg. is listed as Principal Geologist at Montrose Environmental Group, a with 2274 employees, based in Mission Viejo, California, United States. AeroLeads shows a work email signal at montrose-env.com and a matched LinkedIn profile for Stephen Defibaugh, P.G, C.Hg..

Stephen Defibaugh, P.G, C.Hg. previously worked as Principal at Montrose Environmental Group and Senior Project Manager at Montrose Environmental Group. Stephen Defibaugh, P.G, C.Hg. holds Bachelor Of Science - Bs, Geology/Earth Science, General from University Of California, Los Angeles.

Company email context

Email format at Montrose Environmental Group

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*@montrose-env.com
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Profile bio

About Stephen Defibaugh, P.G, C.Hg.

Skilled and accomplished professional with over 15 years of diverse and wide-range experience as a consultant and responsible party representative in the environmental and geoscience fields. I have assessed environmental strategies and effectively implements initiatives while ensuring compliance with regulations. Managed multiple projects from concept to completion and maintained quality and on-time deliverables. My Areas of Expertise are: • Professional License and Certification• Quality Assurance• Compliance and Regulations• Negotiating Skills• Collaborative Leadership• Strategic Planning• Marketing• Training and Development

Current workplace

Stephen Defibaugh, P.G, C.Hg.'s current company

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Montrose Environmental Group
Montrose Environmental Group
Principal Geologist
Mission Viejo, CA, US
Website
montrose-env.com
Employees
2274
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7 roles · 35 years

Stephen Defibaugh, P.G, C.Hg. work experience

A career timeline built from the work history available for this profile.

Senior Project Manager

Montrose Environmental Group

Long Beach, California

Managing environmental activities at redevelopment projects and above and below ground storage tank facilities. Develop scopes of work for environmental assessments, remedial action plans, implementation schedules, and budgets. Negotiate with regulatory agencies to ensure compliance in a cost efficient manner.

Aug 2019 - Mar 2022

Senior Specialist - Remediation

Kinder Morgan, Inc.

Orange County, California Area

Remediation manager, overseeing compliance and cleanup at multiple pipeline and terminal sites.

Oct 2009 - Jul 2019

Senior Geologist

Trc Companies, Inc.

Orange County, California Area

Provided consulting services to major oil companies for environmental remediation.

2005 - 2009 ~4 yrs

Program Manager

Miller-Brooks Environmental

Orange County, California Area

Program management for a major oil company. Oversaw a team that provided environmental management at service station sites.

2003 - 2005 ~2 yrs

Vice President

Block Environmental

Laguna Hills, California

Managed major oil company remediation projects.

1992 - 2003 ~11 yrs
Team & coworkers

Colleagues at Montrose Environmental Group

Other employees you can reach at montrose-env.com. View company contacts for 2274 employees →

TD Thomas Delrio Thomas Delrio Colleague at Montrose Environmental GroupHouston, Texas, United States View → SS Siad Salat Siad Salat Colleague at Montrose Environmental GroupNairobi, Nairobi County, Kenya View → KZ Kendall Zogg Kendall Zogg Colleague at Montrose Environmental GroupBrentwood, California, United States View → AB Aaron Berarducci Aaron Berarducci Colleague at Montrose Environmental GroupCanal Winchester, Ohio, United States View → JS Josh Suzuki Josh Suzuki Colleague at Montrose Environmental GroupBrea, California, United States View → GM George Munoz George Munoz Colleague at Montrose Environmental GroupOntario, California, United States View → KO Kevin O'Rourke Kevin O'Rourke Colleague at Montrose Environmental GroupWest Chester, Pennsylvania, United States View → KT Kevin Thibodeaux Kevin Thibodeaux Colleague at Montrose Environmental GroupGreenwell Springs, Louisiana, United States View → TC Tracey Collymore Tracey Collymore Colleague at Montrose Environmental GroupHumble, Texas, United States View → LM Leah Mistick, Lrs, Cp, Mba Leah Mistick, Lrs, Cp, Mba Colleague at Montrose Environmental GroupGreater Pittsburgh Region, United States View →
1 education record

Stephen Defibaugh, P.G, C.Hg. education

FAQ

Frequently asked questions about Stephen Defibaugh, P.G, C.Hg.

Quick answers generated from the profile data available on this page.

What company does Stephen Defibaugh, P.G, C.Hg. work for?

Stephen Defibaugh, P.G, C.Hg. works for Montrose Environmental Group.

What is Stephen Defibaugh, P.G, C.Hg.'s role at Montrose Environmental Group?

Stephen Defibaugh, P.G, C.Hg. is listed as Principal Geologist at Montrose Environmental Group.

What is Stephen Defibaugh, P.G, C.Hg.'s email address?

AeroLeads has found 2 work email signals at @montrose-env.com for Stephen Defibaugh, P.G, C.Hg. at Montrose Environmental Group.

Where is Stephen Defibaugh, P.G, C.Hg. based?

Stephen Defibaugh, P.G, C.Hg. is based in Mission Viejo, California, United States while working with Montrose Environmental Group.

What companies has Stephen Defibaugh, P.G, C.Hg. worked for?

Stephen Defibaugh, P.G, C.Hg. has worked for Montrose Environmental Group, Kinder Morgan, Inc., Trc Companies, Inc., Miller-Brooks Environmental, and Block Environmental.

Who are Stephen Defibaugh, P.G, C.Hg.'s colleagues at Montrose Environmental Group?

Stephen Defibaugh, P.G, C.Hg.'s colleagues at Montrose Environmental Group include Thomas Delrio, Siad Salat, Kendall Zogg, Aaron Berarducci, and Josh Suzuki.

How can I contact Stephen Defibaugh, P.G, C.Hg.?

You can use AeroLeads to view verified contact signals for Stephen Defibaugh, P.G, C.Hg. at Montrose Environmental Group, including work email, phone, and LinkedIn data when available.

What schools did Stephen Defibaugh, P.G, C.Hg. attend?

Stephen Defibaugh, P.G, C.Hg. holds Bachelor Of Science - Bs, Geology/Earth Science, General from University Of California, Los Angeles.

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