Mammoth Holdings Names Bethany Gillam Chief People Officer

Mammoth Holdings, America’s premier express car wash platform, announced the appointment of Bethany Gillam as Chief People Officer, effective immediately. Ms. Gillam – most recently Vice President of Human Resources at Omni Hotels & Resorts – will oversee talent recruitment and development, compensation and benefits, and all other aspects of human resources.

“Bethany has a pivotal role in shaping our company culture,” said Mammoth CEO David Hoffmann. “She will have a razor focus on building a Mammoth workplace that is inclusive, supportive and assures personal and professional growth for all team members.”

Gilliam is a graduate of the University of Nevada, Las Vegas with a degree in hotel administration. She will partner with the Mammoth operations team across Mammoth’s regional footprint leveraging her significant service industry expertise.

“Mammoth has seen phenomenal growth driven by a strong commitment to customer service,” said Gillam. “One of my top goals is to build on our great foundation and help team members design career paths that allow them to take advantage of the many growth opportunities that exist within our company.”

Gillam will oversee employee engagement, learning and development and internal communications at Mammoth with a strong emphasis on culture building, mentoring and creating an environment of feedback and open dialogue.

Mammoth Holdings is the first car wash platform formed by industry insiders and has 135 operating locations. Mammoth is customer-focused operationally; operator-focused in its approach to acquisitions; and seeks to be the partner-of-choice for car wash operators who desire liquidity, growth capital, and a tax-deferred equity investment opportunity.

Mammoth has significant growth capital available and is actively seeking acquisitions and development opportunities.

In October 2018, Mammoth partnered with Red Dog Equity LLC, an Atlanta-based private equity firm, which, through its partnership with Tom Pritzker’s family business interests (advised by The Pritzker Organization), provided the equity for Mammoth Holdings’ corporate development initiatives. In December 2022, Mammoth sold a minority stake to CCMP Growth Advisors that provided Mammoth with additional capital to pursue building new units and making acquisitions.

Oak Hill Advisors provides Mammoth Holdings’ debt financing through its direct lending partnership with BMO Capital Markets.

About Mammoth Holdings 

Headquartered in Dallas, Texas, Mammoth Holdings, LLC operates 135 conveyor car washes under the Busy Bee Car Wash, Coastal Carwash, Finish Line Car Wash, Galaxies Express Car Wash, In & Out Express Carwash, Jax Kar Wash, Lulu’s Express Car Wash, Marc-1 Car Wash, Mr. Squeaky Car Wash, Pals Carwash, Pitstop Car Wash, PureMagic Carwash, Silverstar Car Wash, Speedy Clean Car Wash, Suds Car Wash, Swifty Car Wash, Today’s Car Wash, Ultra Car Wash, Wash Me Fast, Wash-N-Go Express Car Wash, and Wiggy Wash brands in AlabamaFloridaGeorgiaIllinoisIndianaIowaKentuckyLouisianaMinnesotaMississippiMissouriNebraskaNorth DakotaSouth CarolinaSouth DakotaTennesseeTexasUtah.

Mammoth Holdings was founded by Gary Dennis and Chip Hackett in 2002. To learn more, please visit

About Red Dog Equity
Red Dog Equity LLC is a private equity firm that invests in lower middle-market companies poised for strong growth in partnership with driven, entrepreneurial business leaders (“Red Dogs”). To learn more, please visit

About The Pritzker Organization
The Pritzker Organization is the merchant bank for the business interests of the Tom Pritzker family. Additional information can be found at

About CCMP Growth Advisors
CCMP Growth Advisors, LP (“CCMP Growth”) is a New York based growth-oriented private equity firm focused on making lead buyout and growth equity investments in middle-market companies in the Consumer and Industrial sectors primarily in North America. CCMP Growth leverages the deep investment experience of its team to identify high growth companies in transition, and partners with management to help each platform scale through strategic and operational support.