(630) 519-3265



Pride and professionalism are the common goals and values around which the TSI Team is united. The Company promotes inclusiveness at all levels within its organization and, as a consequence, is committed to developing and maintaining a diverse workforce. TSI has developed an ethnically diverse (African-American, Caucasian, Hispanic, African and European, etc.) team of professionals from various cultures and who speak a variety of languages. Consequently, the TSI Team reflects the very diversity found in the customer base it serves.

MBE Certification

By virtue of its ownership and management structure, Thomas Services is certified as a Minority Business Enterprise.


The Company offers, among others, the following benefits to its employees:

  • Company vehicle, fuel and tools (Field Technicians only)
  • Paid Time Off (Amount determined by years of service)
  • Company-subsidized Health Insurance (Medical, Dental and Vision)
  • 401(k) plan
  • Company-paid Life Insurance policy
  • Section 125 “Cafeteria” Plan
  • Employee Assistance Program
  • Direct Deposit

Equal Opportunity Employer

Thomas Services is an Equal Opportunity Employer. Employees will not be discriminated against on the basis of: veteran status, uniform service member status, race, color, religion, sex, national origin, age and physical or mental disability, or any other protected class at the federal, state or local level.