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June 9, 2017
Save the Date for the Holt Services Field Expo

Field Expo August 25, 2017, 10 am - 2pm at our headquarters in Edgewood, WA. See live drilling demonstrations, enjoy a delicious lunch, and more. Get details


June 1, 2017
2nd Vacuum Truck Arrives

Quickly and safely uncover underground utilities before drilling. Get details


TSi 150 compact crawlerApril 11, 2017
Holt adds 5th Sonic drill rig to its diversified fleet

Introducing our newest sonic rig - the versatile TSi 150 compact crawler. Holt Services now has five sonic rigs - the largest fleet of sonic drill rigs in the Pacific Northwest. With the largest, most diversified fleet of drilling equipment in the industry, Holt Services makes it easier to put the right drilling equipment and teams at your project site. Get the results you need on time and on budget with our 5th NEW sonic drill rig! Get details

Northwest Environmental Business Council LogoApril 6, 2017
Holt Services, Inc. joins the Northwest Environmental Business Council as Sponsoring Member

To support and strengthen our connection with the environmental professional community, Holt Services, Inc. is now a Sponsoring Member of the Northwest Environmental Business Council (NEBC). Holt provides support services to the environmental community that align with NEBC’s mission. According to Steve Rasmussen, Project Manager, "We rely on NEBC as a resource; as a Sponsoring Member we can be more involved and make more connections with our fellow colleagues. We are excited about the events NEBC has lined up for this year!" Get details

March 14, 2017
Two new B-58 drill rigs join our growing fleet.

Put the stress of availability and breakdowns behind you when you schedule our brand-new B-58 drill rigs for your project. 

With 9 auger/mud rotary/rock coring rigs in our fleet, a team can be on site working on your project very soon. 

With our large fleet and in-house maintenance crew, it's easy to keep our drill rigs available and performing at their peak for your project. Get details.

March 7, 2017
Steve Rasmussen joins the team.  

Join us in welcoming Steve Rasmussen, our new Project Manager and Business Development Specialist. Steve has an award-winning health and safety background and is ready to apply his deep expertise with environmental site assessments and remediation to your environmental and geotechnical drilling projects.  Get details.



Nov 11, 2016
Two new drill rigs join our ever-growing fleet.

Our new CME-85 HT high torque auger drill rig is a rugged power house with 22,900 foot pounds of torque. With SEVEN combination-hollow stem auger/mud rotary/core drill rigs, scheduling is quicker than ever. Get details.


Our new Sonic 150 LC CC is powerful, nimble, and compact. All the power of a big rig on a compact, rubber track footprint with a drilling height of just 14 ft 7 in! Low clearance and off-road sites are no problem for this agile rig. When overhead clearance is not a concern, we have three additional SONIC rigs to fulfill your drilling needs. Get details.




July 28, 2016
New, track mounted multi-purpose B-57 drill rig

Our new rubber track mounted Mobile B-57 drill rig is already busy in the field drilling in areas that traditional drill rigs can't reach. It's compact, powerful, versatile, and nimble. Unlike most rigs, the "driver" operates it using remote controls to skillfully maneuver it into difficult-to-reach locations. Get details.

Contact us
 today to talk with an environmental drilling professional and get a quote. Standard quotes are typically provided within 24 hours, often the same day.


Washington Contractor #HOLTSSI898JG
Oregon Construction Contractors Board #198764
Idaho Public Works CL #015401-CC-4
Montana CL #MWC449
Alaska CL #39039
California Type C-57, #1008224
New Mexico CL #5205166

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