CFO Services

We help businesses grow and profit!

What We Do

Strategic Fractional CFO


Think CFO for hire. Not all businesses can afford to hire a CFO, but they need one, and we have an affordable solution for that!


We will analyze your business and financials and show you exactly what’s holding you back from making more profit and cash flow.


Improve business profitability and cash flow by setting goals and creating a strategic plan.


Each month we’ll give you a simple one-page “scoreboard” report that will clearly show you what’s going right and what’s going wrong.


We work with your tax preparer on income tax returns. Information returns (1099s, excise tax), quarterly & annual state renewals? We’ve got those covered.


Leave project management, trademark & domain management, human resources, and securities account analysis up to us.

Who Are We?

Annette Sonnenburg has been providing financial, operational, and project management services to small businesses and high net worth individuals since 1999. ​Whether you have a project or require ongoing assistance​, we can customize our services to fit your needs.

Ascension CFO Services is an affiliate of Sonnenburg Consulting. For more than 15 years, we have managed various aspects of our client’s businesses, allowing them time to focus on their long-term objectives. Whether you need advice or require complete management of your business operations, we can design a plan to meet your needs.

A CFO is...

Not all businesses can afford to hire a CFO, but they need one, and we have an affordable solution for that!

A Strategist

The CFO is a strategic partner, shaping financial decisions to drive business growth and long-term success. They leverage data-driven insights to guide the organization's financial direction.

A Forward-Looking Advisor

A CFO is a strategic partner who anticipates future challenges, identifies opportunities, and guides the organization towards sustainable growth and profitability.

A Data Driven Decision Maker

A CFO leverages data analytics to make informed, strategic decisions that drive business growth and profitability.

A Business Growth Planner

A CFO is a key partner for business growth through financial planning and decision making. With expertise in finance, economics, and business, they align financial objectives with broader business strategy to overcome challenges and achieve success.

Meet Our Experts

We treat our clients with the utmost care and concern. You’ll soon discover that we look out for your business’ best interests as thoroughly as we do for our own business. Our clients count, so we make sure they never feel like a number.


Annette Sonnenburg has been offering business consulting and fractional CFO services to clients for more than 20 years. With a background in accounting and finance, she knows how to get your business on the right track.


Mindy Petersen has worked with reputable financial institutions as an account reconciliations specialist and has worked for years with Annette in bookkeeping and accounting cleanup.

Client Testimonials


ACFO can work with a wide range of clients including service providers, retailers, real estate developments, bloggers and influencers, construction companies, restaurants, nonprofits, and more.

As a small business owner, investing in the services of a fractional CFO can prove to be invaluable. With their financial expertise, strategic guidance, and cost-effective solutions, they can help you achieve your short-term and long-term goals. With their guidance and support, you can make more informed decisions, mitigate financial risks, and ultimately grow your business in a sustainable way. So, if you’re looking to take your business to the next level, consider partnering with a fractional CFO.

No business is too small to outsource your CFO services. In a constantly changing business world, knowing how to analyze and forecast business financial health helps businesses like yours stay on track.
The simplest answer is: now. There’s no true pinpoint moment when we can say you absolutely need an outsourced CFO, but there are signs that you’re in a dangerous zone and need help.

Our Partners