Est. 1986 • Marietta, Ohio
Our Legacy of
Ingenuity,
Safety & Results
40 years down and Mole·Master is just getting started.
All 50 States
30+ Countries
Thousands of Cleanouts
Company Overview
See Who We Are
The Mole·Master Journey
Founding & Firsts
1980's
- • The first silo cleanout begins-R. John Lehman joins First Colony
- • Dec 1986: Lehman acquires Mole·Master division
- • First grain project for Cargill—First "Cootie" drill & Junior 180 built
- • Dedicated supervisors added to handle growing demand with personal service
- • First international projects in Guadeloupe & Martinique
- • First $100k project completed
Building Capacity
1990's
- • Operations move to 117 Industry Road
- • Multiple years of zero lost-time accidents
- • Bridge Breaker / Arch-Master launched—Serve All acquired
- • First vacuum trucks & hydro-blasting—Depots in CA & TX
- • Services in 20+ industries—First $200k project
Scale & Standardization
2000's
- • Move into current 600,000 sq ft facility in Reno, OH
- • Hydraulic & Pneumatic Junior 360 developed
- • Corporate contracts with Cargill, Mars, Lehigh Cement & more
- • First project in Hawaii—all 50 states covered
- • First $500k project completed
Recognition & Expansion
2010's
- • 25th Anniversary celebrated
- • Featured in Grain Journal
- • Mid-Ohio Safety Council Award—zero lost-time
- • New website with technical resource library launched
- • Abrasive blasting services expanded
- • Member of Renewable Fuels Association
Thought Leadership
2020's
- • Featured in World Cement
- • Major international trade-show presence
- • Continued investment in proprietary equipment and emerging technologies
Voices from Our Journey
The People Behind the Legacy
Hear from the team who built our story.
“
I started in June of 1988, and back then, Mr. Lehman was right there with us on the job.
Chief Safety Officer
“
I joined on May 15, 1987, as a field tech, and over the years worked my way up—reflecting our commitment to growth.
Service-Fleet Manager
“
We were a small company with tough farm boys who knew how to get the job done.
Project Manager
“
Our ongoing commitment to the vital industries we serve—where uninterrupted production, accurate material flow, and worker safety are critical—drives us forward.
General Manager
What We DoPioneering Solutions for
Pioneering Solutions for
Your Toughest Silo Issues
Proprietary equipment. Experienced technicians. A safety-first culture.
Silo & Bin Cleaning
Comprehensive material removal for complex blockages and uninterrupted production.
Inspections & Assessments
Advanced structural inspections to identify issues before they become costly problems.
Preventative Maintenance
Proactive programs that boost efficiency, extend asset life, and reduce downtime.
See It in Action
History of Excellence
History of Excellence Series
Watch the full series on Vimeo
Where the Legacy Began
The raw ingenuity, grit, and first breakthroughs from our earliest years.
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We Never Stop
Moving Forward
Decades of proven results. Countless more to come.