Your Trusted Advisor
OSGroup in Windham, NH, is a full-service CPA firm offering audit services, tax services, and accounting support for individuals and businesses all over New Hampshire and Massachusetts. But what sets us apart from other CPA businesses is the high level of personalized customer service you receive when working with our team. We are not just your CPA. We are here to act as your trusted strategic business advisor. Our vast experience provides valuable insight from a wide array of business fields and we are here to provide thoughtful and empathetic guidance when it comes to your difficult business and financial decisions. For quality service and a dedicated and responsive team, contact the CPA professionals at OSGroup today.