Bigelow & Co

500 Market Street, Suite 5, Portsmouth, NH 03801, USA
Phone No:
Bigelow & Co

Founded in 1931 by Nathaniel F. Bigelow, the accounting firm of Bigelow & Company has prospered and grown for nearly a century to become one of the largest, most experienced and respected accounting firms in New Hampshire. With offices in Manchester and Portsmouth, the firm offers an array of financial services for businesses large and small across a broad spectrum of services and industries.

With a philosophy based on building personal relationships with each business owner, the professionals at Bigelow & Company bring an integrated perspective to each client’s business and personal financial needs. Our goal is to deliver comprehensive financial planning and management services that will enhance your success by sustaining your stability and growth.


  • Audit & Accounting
  • Tax Planning & Compliance
  • Business Management