Full Service Accounting, Bookkeeping, Tax Preparation, Payroll Management Company

Bonnie McGrenaghan


Bonnie McGrenaghan’s career supporting the financial well-being of businesses spans over forty years. During this time, she has dedicated herself to capacities ranging from Consultant to Controller and with organizations of vastly diversified revenues. Whether working with sole proprietors or serving as a managing partner and shareholder to multimillion-dollar firms, Bonnie’s level of commitment to her clientele is well documented. Present and former clientele consistently remarked upon and prospered from her commitment to financial detail, organization and professional ethics.

Bonnie presently owns and operates the Business Management Consulting Group, Inc. (BMCG), a New Hampshire based group whose services include, bookkeeping services, accounts receivable, payroll management and tax reporting. Bonnie’s reputation for detail and trustworthy service have carried over into the training of all her supporting staff. Together, BMCG has earned a reputation for its ability to quickly establish high-quality accounting and bookkeeping systems for businesses throughout New Hampshire, Massachusetts, and Maine.

After years of preparing tax returns for Corporations, Partnerships, Estate/Trust & Individuals including IRS audits for her clients, as an RTRP (Registered Tax Return Preparer), Bonnie prepared and passed the challenging steps to become an ENROLLED AGENT for the IRS in 2018. EA #130828

Bonnie’s career and education originate in New York. She has resided in Stratham, NH since 1997.

EMAIL: bonnie@accountingservicesnh.com