Coronavirus / COVID-19 Update

To our valued customers, suppliers and industry partners, Trench Shoring Company is maintaining our business operations as part of the "essential business" provision from both Governor Newsom and Governor Sisolak. In total, Trench Shoring Company is here to support you. We have cancelled all trench safety classes scheduled for the remainder of March and April, and are actively developing alternative solutions and methods for May classes. If you have any specific questions about training, please email Greg Shreenan. Click to view a letter from Trench Shoring Company President, Kevin Malloy.

Trench Safety Training

Trench Shoring Company offers two training seminars: Competent Person Training for Trenching and Excavations and Confined Space Entry Training. Click on the link on the left to download the training brochure.  You can find out more about our courses by clicking on the links below for detailed course information and to register online. For additional detail and scheduling please contact: Kelley Malloy at 310-327-5554, or e-mail us today at .


Class Training Schedule - Register Online

Trenching & Excavations Competent Person Training - Online

Trenching & Excavations Competent Person Training - Bakersfield

Trenching & Excavations Competent Person Training - Fullerton

Trenching & Excavations Competent Person Training - Las Vegas

Confined Space Entry Training - Fullerton

Confined Space Entry Training - Las Vegas


Individual Training

We offer seminars at our training facilities in Bakersfield, Fullerton and Las Vegas.  A comprehensive handbook, a certificate of completion, a wallet card, continental breakfast and lunch are provided.

Group Training

We offer Competent Person Training for Trenching and Excavations, Confined Space Entry Training, as well as customized trench safety training at your facility.  Group Training is quoted based on day of the week, location and number of participants.

Registration / Scheduling / Payment

Please call Kelley Malloy at 310-327-5554 for scheduling, class availability and payment arrangements. Classes are not billed and are paid for in advance or at the time of the class.

Trench Shoring Safety Training

Training Instructors

Greg Shreenan


 Greg Shreenan  

Compton Corporate Office

(800) 423-4411 • (310) 327-5554



(855) 509-5900 • (661) 396-9160


(800) 221-2030 • (951) 849-1611


(800) 457-4646 • (951) 734-4290


(866) 887-3909 • (559) 691-4123


(800) 439-0987 • (714) 879-1005

Lake Forest

(800) 714-7244 • (949) 454-0858


(800) 805-2258 • (805) 529-4614

San Diego

(800) 608-4422 • (858) 530-2500

Las Vegas, NV

(866)-319-2053 • (702) 651-0920