Certified Public Accountants and Consultants

Your Business Partner for over 40 years.

Headquartered in Houston, Texas with a satellite office in Madision, Wisconsin, Calvin Martin & Company (CM&C) represents businesses and individuals all over the country. Our firm specializes in Business Start-ups, Tax Planning and Preparation for both businesses and individuals, and 401(k) Audits.

Whether you are an entrepreneur looking to start a new business, an individual looking for financial and long term planning, or an existing business looking for a fresh start or to make changes in your existing business model, we are a partner you can trust to provide a roadmap to success.

Areas of Practice


Tax and Accounting

Like a home needs a solid foundation, successful businesses and individuals must have the tools to understand, manage, and maintain their finances. That’s where we come in; our firm has over 40 years of planning, preparation, and compliance solutions to meet your needs.


Business Advisory

Who best to assist and advise you in developing strategic plans and finding solutions to solve those issues you face that those that have the necessary background, continuing education, and the passion to help.


Audit and Assurance

No one wants an audit; but sometimes you find yourself in need of an audit. If so, we are here to help. We have over 30 years of experience in Financial and 401(k) Auditing to help make this process as smooth as possible for you and/or your staff. In the ever changing world of Audit Standards, we keep abreast of all changes.


“We must all obey the great law of change. It is the most powerful law of nature.”

– Edmund Burke