A Trusted Partner Since 1995

After spending fifteen years as a CFO in the manufacturing industry, Douglas Nienhuis noticed a gap in the small-business market; many businesses did not require a full-time CFO but would benefit tremendously from the part-time CFO services he could offer. He then left his position as CFO to found Nienhuis Financial Group LLC. 

For over 20 years we’ve been helping businesses and nonprofit clients build sustainable success. Whether you are an individual looking to simplify the tax preparation process, an entrepreneur looking for assistance in setting up a new entity, a growing nonprofit that no longer has time to handle its accounting, or a multi-owner entity looking for consultations on how to finance an expansion, we offer a wide range of services catered to meet your exact needs and help you succeed.



Our Services

Because we see ourselves as a true partner in your business, we work with you to put together a custom package of services that meet your needs, including many services which often cost extra at other firms. Our priority is to always get to the root of your challenges and provide you with timely, comprehensive, and effective solutions. Here’s an overview of the services we offer:


Business Management & Consulting

Strategic Business Planning

Banking Packages

CFO Outsourcing



Payroll Facilitation


Accounting Software








Strategic Organizational Planning

Accounting and Bookkeeping

Tax Compliance


Why Choose Us?

While many CPA or consulting firms may provide similar services, there are a few things that set us apart. First, we operate as if we were a true partner in your business and we work with empathy, care, and diligence as if we had vested interest in your success. We integrate our team closely with yours to not only strategize the path forward, but to see your success through. Second, we are deeply committed to our values, and they directly impact the way we conduct business. Everything we do revolves around:



Proactive and engaged service comes standard no matter the size of the project.


No one likes to wait for answers. We work with intentionality to keep you constantly informed and up to date.

Earning Your Trust

We know that nothing in business happens without trust. We work hard to earn yours.


Prioritizing your interests above our own is how consulting should work. It’s how we’ve always done things.


Let’s Have a Conversation!

If you have any questions about our services or if you’d like to know how we can customize a cost-effective package of services that’s right for you, feel free to reach out to our team by phone at 616.532.8861 or via email through the form below.

Service Category *
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