Plant Services, Inc

Plant Services, Inc


Larry Kothe

Larry Kothe

National SRTS Director

Larry “Deano” Kothe is part of our Leadership Team and is our National SRTS Director in Tulsa Oklahoma. SRTS stands for Specialty Repair Technical Support, which is the support group for our techs out in the field. Deano, or Ole Man Legend as he’s referred to around here, lives in Collinsville and has been with PSI since 2013. Deano is also an Oklahoma original and started the Oklahoma Territory office and has devoted his professional time working towards the success of his crew there.

Deano has over 35+ years’ experience in the Specialty Services industry, so “Ole Man Legend” is very appropriate. He’s a Master Tech, a composite wrap trainer, Leadership Team member, hot tap/line stop trainer and an on-stream leak sealing trainer. He says he’s also proficient at pushing a broom when needed!

Justin Kothe

Justin Kothe

Technician II

Justin Kothe is an Oklahoma native who has been with PSI since 2016. He brings with him a love for the industry, as well as a natural curiosity to learn something new each day.

Justin has quickly mastered multiple service lines at PSI. Skilled at leak sealing, composite wraps, pipe isolations, cutting and beveling, as well as a host of other service lines, Justin is an effective technician that really cares about the job he delivers.

Stephen Wilson

stephen wilson

Technician I

Steve has been with PSI since 2018. He lives in the Tulsa area and is part of the crew that services PSI customers in that territory.
A very hard-working individual, Steve is working towards gaining his certification in on-stream leak sealing, composite wraps and isolation plugs. Steve has one of the best attitudes we’ve seen and constantly has a smile on his face.
Representing our younger techs throughout PSI, Steve is a shining example of someone who comes to work with exuberance and a passion for life. He’s learning more and more each day and both him and PSI are certain that he’s going to go far at PSI!

Tom Thayer Picture

Tom Thayer


Thank you for coming to our website. It is my hope that when you put your mouse down and decide to take action for your facility needs, that we’ve given you enough information for you to make PSI your first call for your specialty contracting needs.

I formed PSI to provide a better, more polished product for our customers in the power and petrochemical industries. To provide “old school” service that was based upon a handshake, and where a service company does just that, provide service. Not only provide service, but provide only the best service, with spot-on pricing, punctuality, professionalism and utilizes a “service with a smile” approach. The company, much like myself has modest roots, remains humble in its demeanor and yet is very driven to succeed and be the very best at what we do.

Mike Bosse

Mike Bosse

Lead Technician

Mike has been with PSI since Late 2014, when he moved over to Billings, MT from Chicago to join our work family.

Mike has been working in the petrochemical industry since he was 19 and has developed quite a few specialty skills over the years. Mike’s certified in multiple PSI service lines such as Isolation/Hydros and torqueing and on-stream leak sealing.

“Bosse” as we refer to him, is another part of our very talented and exciting MT crews. Committed, caring and very personable, Mike is a favorite of our customers and is usually asked for by name when they call in for service work. We enjoy seeing Mike’s bright, smiling face every day around here. He just brings joy to everything he does and is a superb member of our Plant Services, Inc. family.

Sean Carney

Sean Carney

National Technical Operations Manager

Sean has over 13 years of specialty contracting experience and has been with PSI for over 10+ years. Sean started in this industry at a very young age, so despite barely being in his 30’s, Sean has collected decades of experience and has earned his right to manage all of PSI’s territory offices. Sean is a life-long Montana native and grew up in the farm fields just outside of Billings right near the PSI corporate office.

Sean has obtained training and certification in just about every service line PSI has to offer. From Leak Sealing to Hot Taps and Line Stops, Sean’s mastery of these services lines is the baseline that provides him the knowledge to lead our offices to provide only the pinnacle of services to our valued customers.

Sean has the unique background in that he apprenticed at PSI while he was in high school. Seeing things literally from the ground up, as well as working his way up with hard work, dedication and a zest for specialty contracting, Sean’s vision for the future of PSI sets us all up for success. Customer service is core to Sean’s beliefs, and he is our cheerleader to our troops that quality customer service is not easy but is worth it every time and is the only service acceptable here at PSI. Give Sean a call and see what he can do for your specialty needs.