Q2 M&A Market Update

Critical Infrastructure 

With a focus on Water, Waste Water and Environmental Services our team assists clients in every stage of their business

Critical Infrastructure (CI)

The McLean Group’s Critical Infrastructure group provides both sell-side and buy-side M&A advisory and corporate finance services to lower middle market companies. The businesses that comprise the CI include water and wastewater, food security & supply, energy infrastructure, critical communications, first responders and emergency services and fintech.

Seasoned executives with over 50 years of executive-level operating and investment banking experience lead the CI group. Our team understands the unique qualitative and quantitative value drivers that impact these businesses, resulting in optimal client success.

The McLean Group supports these CI Subsectors:

Recent Publications

Critical Infrastructure, Water M&A Whitepaper - The McLean Group


Water & Wastewater Treatment Equipment
Filtration and Separation Technologies
First-Responder Solutions


Metering Equipment
Monitoring & Control Automation
Energy and Infrastructure Components


Environmental Remediation
Non-Hazardous Waste Handling & Disposal
Engineering Consulting

Mark Bertler – The McLean Group

Mark Bertler

Position: Managing Director
Phone: 847.226.0793
Email: mbertler@mcleanllc.com

Mark Bertler, Managing Director of The McLean Group’s Water, Wastewater & Environmental Practice Group, has represented numerous public and private firms in both advisory and principal roles on such issues as strategic management, corporate growth, financing, restructuring, and overall capitalization in the water and wastewater segment. For more than 25 years, he has held senior corporate executive positions with a number of Fortune 500 water and wastewater manufacturing and service companies with extensive experience in M&A, joint ventures, partnerships, and other strategic initiatives both domestic and global. During his career, Mr. Bertler has served in the capacity of senior executive, investment banker and advisor on more than 20 successful sell and buy side M&A and capital engagements. Mr. Bertler holds a BS in Chemical Engineering from the University of Wisconsin – Madison and a MBA from University of Wisconsin – Milwaukee.

Professional Credentials

  • FINRA Registered Representative (Series 63, 82)
  • Water Quality Association (WQA) – Market Development Committee Chair
  • Water Equipment Federation (WEF)
  • American Water Works Association (AWWA)
  • Business Marketing Association (BMA) International Board of Directors
  • Wishing Well International Foundation – a 501(c)(3) non-profit – Board of Directors

Mark Bertler

Managing Director

Critical Infrastructure

Jeff Conn - The McLean Group

Jeff Conn

Position: Director
Phone: 703.752.9024
Email: jconn@mcleanllc.com

Jeff Conn is a Director in The McLean Group’s Water, Wastewater & Environmental Services Group, which is part of the firm’s Critical Infrastructure Practice.  Mr. Conn has nearly 20 years of industry experience and has completed nearly 40 sell-side and buy-side M&A transactions worth approximately $1 billion.  Mr. Conn joined The McLean Group in 2006 and initially oversaw engagement support while providing operational and logistical support to the entire investment bank before focusing on the firm’s Critical Infrastructure Practice.  He most recently advised on Integrated Water Services sale to Sciens Water Opportunities Group and Granite Equity Partners sale of its portfolio company, Aeration Industries International, to Newterra.  Mr. Conn has worked across a range of industries in his career, including water infrastructure, environmental services, energy, government services, healthcare, veterinary services, travel and hospitality technology, and consumer franchising.

Prior to joining The McLean Group, Mr. Conn worked for FBR & Co. and CGI Federal (formerly American Management Systems). Mr. Conn earned a B.A. in Economics from the College of William and Mary with a second major in Environmental Studies and an M.B.A. from the McDonough School of Business at Georgetown University, where he was inducted into the Beta Gamma Sigma academic honor society.

Professional Credentials

  • FINRA Registered Representative (Series 7, 63 and 79)

Jeff Conn


Security and Critical Infrastructure

Indus acquired by Tetra Tech - The McLean Group
HydroNovation acquired by Kemflo - The McLean Group
The McLean Group