Concord, NH – August 2026 – Nathan Wechsler & Company is pleased to announce the promotions of James Mitkonis, CPA; Joshua Parker; and Kimberly N. O’Connor, CPA, to Principal. These promotions recognize their leadership, technical expertise, commitment to client service, and contributions to the continued growth of the firm.

Since joining the firm in 2012, James has demonstrated a strong commitment to client service, technical excellence, and leadership. As a trusted advisor, he works closely with businesses and individuals, providing strategic tax and accounting guidance while helping clients navigate complex financial challenges with confidence.
Josh joined Nathan Wechsler & Company in 2014 and focuses on tax planning and compliance for individuals and businesses across a variety of industries. He is known for finding creative, tax-efficient solutions to help clients navigate complex challenges. His areas of specialization include tax compliance and consulting, pass-through entity taxation, mergers and acquisitions, and high-net-worth individual taxation.
Kim joined Nathan Wechsler & Company in 2021 and works with a variety of clients, providing accounting and tax compliance services, preparing income tax returns involving complex tax situations, and assisting with special projects. Her areas of specialization include business taxation and high-net-worth individuals.
“James, Josh, and Kim have each demonstrated exceptional leadership, technical expertise, and a genuine commitment to serving our clients,” said Kelli D’Amore, Managing Director. “Each brings valuable experience and perspective to our leadership team, and their dedication to our clients, colleagues, and firm has played an important role in Nathan Wechsler’s continued success. We are excited to recognize their contributions with these well-deserved promotions to Principal.”
As Principals, James, Josh, and Kim will continue to build on their client relationships while taking on expanded leadership roles within the firm. They will help guide Nathan Wechsler’s continued growth and its commitment to delivering personalized, forward-thinking accounting and advisory services throughout New Hampshire and beyond.
Please join us in congratulating James Mitkonis, Joshua Parker, and Kimberly N. O’Connor on their promotions to Principal and this exciting milestone in their careers.
Since 1957, Nathan Wechsler & Company, PA, has provided a full range of business advisory and compliance services to clients across the United States. With a team of more than 40 professionals working out of offices in Concord, Keene, and Lebanon, NH, the firm specializes in business advisory services, tax, and accounting engagements. Nathan Wechsler & Company, PA, has deep expertise in the construction, real estate, nonprofit, manufacturing, and wholesale/distribution industries. For more information, visit nathanwechsler.com.