Serving the Monadnock Region with our accounting expertise since 1991


Oster & Wheeler specializes in working with non-profit organizations as well as small businesses

Client ResourcesLearn More

Accounting & Auditing

Specializing in audit and assurance work for both non-profit organizations and commercial enterprises.

Business Valuation & Consulting

Experience with purchase and sale transactions, tax and litigation engagements

Tax Planning & Preparation

Helping businesses and individuals implement tax strategies specific to their situation

Feel free to contact us if you have any questions or would like any additional information.

  • Financial Statement Audits, Reviews and Compilations
  • Business Valuations
  • Business Consultation
  • Business Sale
  • Business Purchase
  • Peer Reviews
  • Tax Services
  • Tax Planning
  • Accounting Services

Contact Us

We are still in the very early stages of getting into our new location, but we wanted to officially let everyone know that by the end of this year we will have a new physical address at 265 Washington Street in Keene, New Hampshire.

Visit Us

86 West St,
PO Box 623,
Keene, NH 03431

Get In Touch

Phone: 603-352-4500
Fax: 603-352-8558