Technical Sales Industrial Water Treatment

Technical Sales Territory Manager

Sell boiler and cooling tower water treatment chemicals with unlimited commission potential.

Work out of your home in Grand Rapids, or the surrounding area.

Garratt-Callahan is a profitable and private nationwide water treatment chemical company that promotes from within. We are one of the largest private water treatment companies in the U.S. We are stable, and well respected in our industry. G-C is expanding nationwide in 2026, and we are looking for aggressive, smart, educated, and promotable Technical Sales Territory Managers to join our sales team. We offer training, technical support, and an unlimited no cap flat rate commission. Sell water treatment boiler and cooling tower chemicals to a variety of industrial customers in a Grand Rapids, Michigan area based territory. Maintain the existing customer base and make cold calls to develop new business. Work alongside friendly, veteran salespeople. Garratt-Callahan is proud to offer:

Compensation is based upon experience and the ability to succeed.

$90,000 to $120,000+ first year for a qualified candidate.

Great benefits including a corporate 401k, health, dental, vision, and life insurance.

Industry competitive no cap flat rate commission plan. And we have not changed our commission plan in 25 years. Our top Territory Sales Managers make six figure commissions—on top of their salaries. Yes, you read that right. Unlimited commission, no cap.

Expenses, and a Car Allowance of $675 per month.

Technical Support and Ongoing Training.

Stability and peace of mind. No layoffs in our 120-year history. Debt free, profitable, and growing.

Join the winning team. Our 2025 sales were at all-time record levels. And 2026 sales are trending even higher.

We are essential providers to food processors, data centers, government, manufacturers, and over 2000 hospitals.

To apply, please log on to:

Garratt-Callahan is an EEO/AAE employer. Minorities, women, veterans, and individuals with disabilities are encouraged to apply. You may live anywhere within Western Michigan. Grand Rapids, Muskegon, Kalamazoo, or the surrounding area. Thank you for considering the Garratt-Callahan Company. We also have multiple sales openings nationwide. Please visit the career section of our website:

Note: Garratt-Callahan does not sponsor work visas. No recruiters please.

You must have at least a four technical degree to qualify for this position. Advanced degrees preferred. Military equivalent, such as Navy Nuclear Propulsion, or Army CBRN School, is also great.

Requirements: You will be a successful applicant if you have a technical degree such as Chemistry, Chemical Engineering, Environmental Science, Biology or Mechanical Engineering.

A minimum of one-year technical sales related to water treatment chemicals is required. Selling to a variety of industrial customers is preferred. Knowledge of the Michigan industrial marketplace is preferred.

If you have a disability, and need assistance during the application and selection process as a result, please contact the Garratt-Callahan Human Resources department at View phone number on click.appcast.io. Arrangements can be made to provide an accommodation in order to assist you in applying for an open position using our on-line system, completing any other related paperwork, interviewing, or any other portion of the employment process. This phone line is only for disability assistance.

Garratt-Callahan values differing experiences, backgrounds and perspectives among our employees, and see them as a competitive advantage. Garratt-Callahan is committed to the fair and equal treatment of all associates and applicants.

Garratt-Callahan is an equal opportunity employer that evaluates qualified applicants without regard to race, color, national origin, religion, sex, age, marital status, disability, veteran status, sexual orientation, gender identity, or any other characteristic protected by law.