Summit Wash Holdings
Denise Nelsen is a seasoned executive with extensive experience in leadership roles across notable companies. Currently serving on the Board of Directors at Summit Wash Holdings since June 2025, Nelsen previously held the position of Chief Executive Officer at Smashburger from January 2024 to February 2025, where strategic and operational direction was provided for over 200 locations. Nelsen's tenure at Starbucks Coffee Company spanned from February 2015 to August 2023, culminating in a role as Senior Vice President, Advisor, after leading various aspects of operations and partner resources in senior vice president roles. Starting a career at Celebration Station as a Trainer and Manager from April 1992 to November 1997, Nelsen holds a Bachelor of Science degree in Human Resources and Marketing from Purdue University Northwest.
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Summit Wash Holdings
Summit Wash Holdings is an industry-leading, membership-focused car wash group with operations in Connecticut, New York, Nebraska, Kansas, and Florida. Summit, along with its car wash brands Russell Speeders, Waters car wash, Squeeky's car wash, Express car wash - West Boca and Big City car wash, are driven by an unwavering focus on its employees and a commitment to providing industry-leading operational excellence through the use of its proprietary technology and process solutions. This culture of employee-centricity, operational excellence, and a dedication to delivering the best customer service in the industry has been cultivated over a 50-year operational history at Russell Speeder's. The Summit team is dedicated to bringing this culture of excellence to even more communities.