SD Mayer & Associates, LLP (SDM), a San Francisco-based accounting and business consulting firm, today announced the acquisition of the San Francisco office of CPA firm PMB Helin Donovan (PMBHD). This acquisition is the first for SD Mayer since its formation in 2013. Noel McNabola, PMB Helin Donovan (PMBHD) San Francisco/Seattle Managing Partner, will join SDM as a partner, along with four additional PMB Helin Donovan (PMBHD) staff. SDM Founder and Managing Partner Stephen D. Mayer said, “It’s back to the future again, as Noel and I started our careers together in the 1970s at Coopers & Lybrand. Noel and his team will augment our audit and tax departments, and will bring with them more than 100 new clients.” “I have known Steve since our earliest days as CPAs, and I have always respected his work and ethics,” McNabola said. “We are joining a committed, growth-oriented firm, and are excited about the potential for new business opportunities and expansion into new areas and markets.” SD Mayer serves the financial needs of clients throughout the Bay Area, nationally, and globally. Services include traditional audit, accounting and tax services for private companies, not-for-profits, and individuals; CFO outsourcing; business and technology consulting; and full-service financial planning, wealth management and retirement planning services.

About SD Mayer & Associates LLP
SD Mayer & Associates LLP ( is a fast-growing, full-service, community-minded accounting and advisory firm. The firm can also help clients plan for their future through retirement and wealth management advisory services. SD Mayer has the expertise to help clients in a variety of industries, including creative services, financial services, hospitality & leisure, professional services, manufacturing & distribution, nonprofits, real estate & construction, retail, technology and public companies.

SD Mayer is based in San Francisco, with a Silicon Valley office in Menlo Park, along with consultants located in key locations throughout the United States. The firm can also tap into its global resources through its membership with BDO Alliance, the fifth largest association of accountants, consultants and professional services firms in the nation. 

The firm has consistently been named a “Best Places to Work”, and is listed as a “Fastest Growing Private Company”, “Best Accounting Firm to Work For 2019” by Accounting Today and has been named a “Top 400 Firm 2019” by Inside Public Accounting, as well as “2019’s Best Accounting Firm” by Best of Small Business Awards.

SD Mayer