HBK CPAs & Consultants | 9,224 followers on LinkedIn. Tax, Assurance and Advisory | Established in 1949, HBK is a multidisciplinary financial services firm offering the collective intelligence of hundreds of professionals committed to delivering exceptional client service across a wide range of tax, accounting, audit, business advisory, valuation, financial planning, wealth management, and support services. HBK serves clients across the U.S., from individuals to small businesses to multi-million-dollar corporations to exempt organizations. The firm is ranked 45th among “Top 100” accounting firms by Accounting Today and has been a consistent “Top 100” firm in the INSIDE Public Accounting magazine poll.