At DeLange CFO & Accounting, we provide flexible, reliable financial leadership tailored to your organization’s needs. Whether you require support on a temporary, remote, fractional, or hybrid basis, we step in with the right level of service—from high-level CFO strategy to day-to-day bookkeeping.

Services

Our experience spans religious organizations, nonprofits, and corporations, giving us a deep understanding of diverse organizational needs.

Clients We Serve

"Aad de Lange is the powerhouse individual that you want on your team! Aad has the appreciative capacity to listen well, articulate his thoughts, and communicate ideas to others. When faced with difficult decisions, he is calm under pressure and as a people person, he is thoughtful and inspiring. In short, as a talented financial Leader, Aad is quick to understand, a strategic problem-solver, and you can count on him to make a positive impact on your organization. It was truly my pleasure to work with Aad”

  • Comprehensive financial management, including bookkeeping when needed, budgeting plans, payroll processing, and oversight of all accounting functions.

  • Hands-on support for audits and preparation of Form 990 filings for nonprofits, ensuring accuracy and compliance.

  • Participation in board or management meetings when requested, offering financial clarity and strategic insight to support leadership discussions.

  • Providing accurate, timely month-end financial statements, along with custom reports and analyses on demand to support your organization’s decisions..

  • Development of income and expense forecasts and ongoing cash flow oversight to ensure financial stability and forward-looking decision-making

What We Offer

Why Work With Us?

  • Flexibility – Services tailored to your timeline and scope.

  • Quick Response Time – Fast, reliable support when you need it most.

  • Commitment – Dedicated to delivering accurate, thoughtful financial guidance that supports your mission and growth.

Systems Expertise

We work seamlessly with leading accounting systems, including:

Aad de Lange is a dynamic, results-focused finance professional with experience spanning the manufacturing, energy, and power industries, as well as the nonprofit and faith-based sectors. He provides flexible interim and fractional CFO services, delivering strategic vision, integrity, and hands-on expertise.

With a background at multinational firms like ABB, Aad built expertise in accounting standards, business controls, and financial processes across the U.S. and Europe. He excels at driving change, strengthening operations, and turning challenges into growth opportunities.

An effective team builder and connector, he offers financial leadership that supports religious, nonprofit, and cultural organizations through growth, transitions, and audits with confidence.

Aad de Lange: Adapting Financial Leadership to Fit Your Organization’s Needs

With degrees in business economics, tax law, and marketing, and as a member of the Netherlands Institute of Chartered Accountants (NBA), Aad combines deep technical expertise with a strategic perspective to help organizations thrive. In 2023, he received the NCEA President’s Award, recognizing his leadership and lasting impact in the nonprofit sector.

Kind Words From Our Clients

Out of respect for the privacy of those who have generously shared their experiences, testimonials are attributed by title only. References are available upon request.

“We have had nothing but impeccable service from Aad De Lange.  He is knowledgeable on sales tax filings and month end closings; he offers a high level of professionalism and is available at moment’s notice for any questions or concerns.  He will be an asset to your team.”

— Branch Manager, Financial Services

"Aad has a creative and innovative approach to problem solving, applying a multicultural dimension that is especially sensitive to vulnerable populations, a quality that would prove highly beneficial to any organization."

— Assistant Superintendent, Education Administration

"I have known Aad de Lange for over 10 years. He is one of the brightest individuals I know. He is always challenging those to think outside the box and find better, smarter ways to save money. Aad is active in all meetings and looks for the best in all individuals. He is liked by all and is consistent to his approach on dealing with his work and individuals."

— Independent Health Insurance Professional

"I found Aad to be an incredible creative, out of the box thinking financial individual. He is a financially sound decision maker with a heart for the people. Aad had the respect of the entire board and I am glad to extend my recommendation on behalf of Aad. I look forward to working with him in the future."

— Chairman of the Board

"Aad was one of the best CFOs I had ever had the opportunity to work with. He is an avid listener and can forecast issues quickly. Aad’s outreach to all of the parishes in the Archdiocese had never been done before… He was invaluable help to them. I highly recommend Aad de Lange"

— Executive Consultant & Former President/CEO