GPI vs ACIW Comparison

Group 1 owns and operates 32 collision centers and 254 automotive dealerships in the US and the UK, offering 36 brands of automobiles altogether. Slightly over half of the stores are in the US with locations mostly in metropolitan areas in 17 states in the Northeast, Southeast, Midwest, and California. Texas alone contributed 31.6% of new-vehicle unit volume in 2025 and the UK 27.6%. Texas, Massachusetts, and California combined was 45.4%. Revenue in 2025 totaled $22.6 billion. The firm entered the UK in 2007 and has 109 stores there contributing about 26% of total revenue. Group 1 was founded in 1995 and is based in Houston.

ACI Worldwide Inc develops, markets, and installs a portfolio of software products focused on facilitating electronic payments. The firm's products are sold and supported directly and through distribution networks covering three geographic regions - the Americas, EMEA, and Asia Pacific. ACI software products process payment transactions for retail banking clients, billers such as utilities and healthcare providers, and community banks and credit unions. ACI's customers are financial institutions all over the world, but the majority of the revenue is generated in the United States and EMEA regions. The company's operating segment includes Payment Software and Biller. The company generates the majority of its revenue from the Payment Software segment.