Bend, OR-based Capstone Accounting and Tax said Feb. 9 it has added Peltier, Gustafson & Miller, expanding its presence into the growing New Mexico market.
Financial terms of the deal weren’t disclosed.
This is Capstone’s first M&A deal of 2026 after making several last year, following an outside investment from San Diego-based private equity firm Seaside Equity Partners in April.
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Capstone’s partnership with PGM aligns with its strategy to expand its footprint into new geographies by partnering with trusted local firms. While PGM will integrate its operations under the Capstone brand, clients will continue to receive local service from the professionals they have come to know and trust, officials say. PGM clients can expect a seamless practice transition over the next few months, including during the upcoming 2026 tax season. PGM branding will begin transitioning to Capstone branding in the coming months.

“We are thrilled to welcome PGM into the growing Capstone family,” Capstone CEO Susan Olson said in a statement. “Their deep expertise with privately held businesses, client-focused approach, and hands-on partner involvement make them a natural fit for our team and an exciting expansion into New Mexico.”
Founded in 1995, PGM serves Albuquerque and the surrounding New Mexico communities with a full suite of tax and accounting services, including tax planning, financial statement consulting, bookkeeping, and on-site accounting support.
The firm’s expertise helps business owners simplify financial management, plan strategically, and achieve long-term growth.
The leaders of PGM will continue their practices as partners within Capstone.
“Joining Capstone is a fantastic opportunity for our clients and our team,” said PGM partner Don Miller. “Capstone’s focus on local service, combined with its broader resources, aligns perfectly with our values. We look forward to enhancing the services we provide and supporting business owners across Albuquerque and other New Mexico communities.”
Founded in 2004, Capstone Accounting and Tax is a full-service accounting firm providing tax, accounting, and advisory services to businesses and individuals.
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