About Integrated Service Company

Integrated Services Company, LLC, is a trusted leading company in the Refining and Petrochemical industry, and we deliver efficiency and quality in all of our services: Field Services, Construction & Turnaround Services, Manufacturing Services, and Tank Services.

We hire only the most qualified professionals, and we work with suppliers worldwide to ensure our products are superior, so you can be sure the job will be completed quickly and the work will be top-quality. Our processes are safety-oriented, environmentally sound, and cost-effective. Best of all, we can be on the road in mere hours with the high-quality supplies and skilled professionals to fix any on-site problem.

Check out our services or contact us now if you have a problem that needs fixing.

Talk to Someone Now:

918-234-4150

Interested in Working for InServ?

When units fail, pipes burst, or tanks spring a leak, our clients look to InServ and our teams of skilled professionals to hit the ground running and fix the problem with speed and efficiency. InServ is always recruiting skilled professionals in the following areas:

  • Boilermakers
  • Fitters
  • Welders
  • Helpers
  • Hole/Fire Watch

Our network of job sites spans the country, so you could have job opportunities near you now or in the future regardless of where you live. Working with InServ can also be a great opportunity to travel the country and work with a variety of companies.

If you share our passion for efficiency, quality, and safety, we want you on our team. If you have questions, call 918-879-2660 (InServ) or 918-437-4400 (CTS).

apply now
hard hat welding

Some of Our Clients:

BP
Calumet
Cenex Harvest States
Citgo
Coffeyville Resources
Flint Hills Resources
Holly Frontier
Husky
Lion Oil
Marathon
NCRA
Phillips 66

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Field Service has fall work. This is your chance to get in with a great company from the beginning. Come work for InServ, we have a lot of work coming up and we can keep you busy. We are hiring all crafts - please call Sarah at 918-234-5486 to join our team. ... See MoreSee Less

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Contact Info

Integrated Service Company
918-234-4150
1900 N 161st East Ave
Tulsa, OK 74116

Construction & Turnaround Services
918-437-4400
1900 N 161st E Ave, Suite B
Tulsa, OK 74116

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