Industries we serve

Commercial Construction

Commercial  Construction

We spend countless hours following the tax law and studying the latest advances in best practices for the construction industry to help construction businesses grow and minimize problems.

gov con science

Government Contracting

Our government contracting team performs direct and indirect cost structure reviews to help ensure compliance with cost regulations, maximize cost recovery and enhance a government contractor’s competitive position.

Not for Profit

Not-For-Profit Organizations

With decades of experience, our team of CPAs and business advisors can help not for profits reach their financial goals, while allowing top management to focus on seeing their mission become a reality.

Professional Services Industry

Professional Services

 We help owners of growing professional service companies providing them with the tools, advice and perspective needed to stay competitive in a market where success is measured by the effectiveness of your latest engagement.


Emerging Business

Emerging Businesses

We spend countless hours following the tax law and analyzing its impact on small and emerging businesses to guide emerging businesses through managing risks, aligning their tax strategy with their vision, and grow.

Commercial Building Cleaning

Commercial Building Cleaning

Lanigan Ryan has been working with the areas  commercial cleaning businesses for the past 20 years.We help our clients implement practices that improve profitability and sustainable value for their companies.

Wholesale Distributors

Manufacturing & Distribution

We have worked with some of the most visible wholesale distribution companies in the Washington DC area and are acquainted with best practices to help them remain competitive and profitable.

Professional Practices Industry

Professional Practices

We partner with Doctors, Lawyers, Architects, and Engineers by providing them with timely information and perspective they need to make informed decisions about moving their practice forward.

The Benefits of Working with Lanigan, Ryan:

Growth: Our clients have access to specialized knowledge gained from over 30 years of experience helping companies focus on the things that allow them to confidently move forward.
Lifelong Relationships: We value our clients both personally and professionally. We are proud to be a part of their team and take that responsibility seriously.
Our Approach:  We look at your whole business and your quality of life and address issues in light of what you are trying to achieve professionally and personally.
Accountability: We hold ourselves completely accountable for our work product to industry peers and our clients. We have passed the highest standard peer-review of the AICPA for every year in business.