The Seiler Instrument Family

At Seiler Instrument, You’re Family!

Our Family Tree                 

70th ann sign

Founded by Eric H. Seiler and his wife Dora in 1945, Seiler Instrument has been family owned and operated by four generations of the Seiler family. We have six locations in major cities throughout the Midwest and over 150 employees who produce, sell and support some of the most precise optical components on the market.


               Meet the President 

Rick BBQ

President Rick Seiler has an open door policy for all employees. He can often be seen on hot summer days barbecuing hamburgers and bratwurst for company lunch days. Rick makes a point of knowing all of his employees and their needs. Everyone who comes to Seiler Instrument for an interview has the opportunity to meet Rick to get a sense of Seiler Instrument’s commitment to the great men and women who keep the business alive.


Seiler Instrument offers a wide variety of benefits including paid time off, medical, dental, vision and life insurance, and 401(k) retirement investing. What makes us stand apart is our commitment to continuous learning and sharing success across the company. Seiler Instrument provides tuition reimbursement, profit-sharing, military leave pay, an onsite fitness center at the St. Louis headquarters, and other fun activities throughout the year. The bi-monthly company newsletter, In Focus, highlights employee announcements and accomplishments, shares upcoming events, and provides useful life planning information.

Career Paths    

Seiler Instrument prefers to promote from within and we provide foot stepsdevelopmental opportunities to the focused and driven women and men who want to stand out. We encourage everyone to seek out opportunities to continue their education and advance their skills. We believe there is no better way to shine than through taking on new challenges.


      Commitment to Inclusion                      

show me heroes

Seiler Instrument is committed to providing an inclusive and friendly work space. We provide equal opportunity to all regardless of race, color, religion, gender, age, national origin, disability, sexual orientation, gender identity, genetic information, veteran status or any other irrelevant characteristic.

Seiler Instrument is a committed Show Me Heroes employer who values the hard work of our service men and women, on and off the field. Seiler is also a proud member of the Association of the United State Army (AUSA).


Click here to view our current openings and to apply!



The employees at Seiler will manufacture and sell the highest quality systems, utilizing modern techniques and integrity, to anticipate and respond to the changing needs of our customers.


All Seiler Instrument and Manufacturing Company employees are committed to satisfying all customer requirements with the ultimate goal of enhancing customer satisfaction through continuous improvement of our processes.