Company History
In 1976, Leland “Rock” Martell founded Milwaukee-based Rock Transfer & Storage (RTS) with just one truck and a small warehouse. He started with simple ideas: be a partner to your customers, deliver consistent service and exceed expectations. He did it time and time again and it’s still happening every day at RTS.  Eventually, Martell grew his business to 24 trucks, 55,000 square feet of warehouse space and 30 employees before selling the business to Richard Sheridan in 1992.

Rock Transfer & Storage continued to grow under Sheridan’s leadership for the next 13 years. At that point, Sheridan sold the business to his executive team in 2005, which now continues with those same principles of serving its customers. 

Our current ownership group has a combined ninety years’ of experience internally at RTS in all areas of the company. Call on any RTS department, from Operations and Sales to Human Resources, Finance and Warehousing, and that strong leadership guides RTS forward.  We’re one of the largest privately owned, non-union trucking companies in Wisconsin, and we proudly serve clients throughout the Midwest and beyond.

Our track record speaks for itself. We continue our solid growth, but we haven’t forgotten the principles RTS was founded upon. We’re moving our business forward along with that of our many clients. With investments in new operations technologies and expansion of our service offerings, we look forward to building on our 38-year track record by continuing the traditions that started nearly four decades ago, with one truck and a small warehouse.