About Us

Through our expertise in environmental, geotechnical, and clean water drilling as well as environmental construction we help communities gain reliable access to clean water, enable the buying and selling of property, and support the development of roads, bridges, and buildings. Holt Services plays a vital role in managing environmental contaminants and much more.
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Every day, our teams show up early, driven by a shared passion for progress. The work we do presents daily challenges that demand adaptability, precision, and commitment. No two projects are alike. Conditions can shift by the hour, and our seasoned drillers, crews, and managers; drawing on decades of experience are ready to develop and deliver smart, effective solutions in real time.
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Our ultimate goal is to deliver top-tier drilling and environmental construction services while building long-term, trusted relationships with our clients. Teamwork is the foundation of our success both within our own teams and in collaboration with the clients we proudly serve.

Experience

Founders Barbara and Randy Holt have been in the drilling business since 1979. By 2012, Holt Drilling grew from a clean water drilling company into Holt Services, Inc.; a full-service, environmental, geotechnical and clean water drilling firm. Holt Services, Inc. expanded again in 2022 to include an Environmental Remediation Division. Today, we're the largest and most experienced drilling company in the Pacific Northwest.

Safety First Culture

Employees, led by our Health and Safety Director, work proactively to maintain extremely high safety and health standards through extensive training, prevention, onsite safety audits, and constant communication. 

Safety is the top priority on every Holt Services job site. Our team works proactively to maintain high safety and health standards through extensive training, preventive planning, onsite safety audits, and constant communication.
Holt Services’ full-time Safety Director, Sean Sewell, leads a comprehensive safety program designed to provide a safe workplace for all employees, comply with all state and federal regulations, and reduce or eliminate recognized hazards on every drilling project.

Site-specific safety plans

A site-specific Health and Safety Plan (HASP) is developed for every drill site. This plan identifies potential hazards, outlines control measures, and prepares the crew for the conditions, regulations, and client requirements specific to that project.

Ongoing safety audits

Our full-time safety director conducts an average of three to five site safety audits each week to reinforce a strong safety culture and verify compliance with both client and internal standards. Audit reports are available to clients upon request at no additional cost.

Proven EMR safety ratings

Holt Services maintains Experience Modification Rates (EMR) well below the industry average of 1.0, reflecting a strong safety record and effective risk management:
    •    2025: 0.71
    •    2024: 0.77
    •    2023: 0.69

These EMR ratings indicate fewer and less severe incidents compared to similar contractors, which can help reduce project risk and insurance-related costs.

Commitment to zero incidents

Our safety director and drilling teams are committed to following all applicable safety requirements, including client-specific protocols and Holt Services’ internal procedures. Failure to follow established safety practices can put people at risk and cause costly project delays, including full work stoppages at federal sites while investigations and corrective actions are completed.