About Wise Fox
Operators first. Advisors second.
Wise Fox is a fractional growth leadership firm for founder-led businesses, led by Sara Hasselman and Matt Dell. We've spent our careers running marketing, sales and operations from the inside. Now we bring that experience to growing companies that need senior leadership before they're ready for a full-time executive.
The story that defines how we work
We've done the job we're offering to do.
At a health technology company, Sara came in as CMO and was promoted to Chief Growth & Operations Officer. Matt came in as a consultant and became CEO. Together we rebuilt how the company marketed, sold and operated. Revenue grew 176% in three years, and annual leads grew more than 19 times.
Once the business was on track and profitable, we stepped back to do the same for more companies. That's the model: come in, take ownership, build the engine and hand it off strong.
Why Wise Fox exists
Growing companies often face two imperfect options.
Consultants recommend, then leave the work to you. Agencies execute, but nobody owns the strategy or the results. Founders need senior people who do both: set the direction and do the work to get there.
That's what we do. We lead marketing, sales and the systems underneath them as part of your team, with part of our pay tied to the growth we create.
The partners
The people leading your work

Sara Hasselman
Founder & Managing Partner
Growth and operations executive. Builds the marketing, CRM and revenue systems that make growth repeatable.
Meet Sara
Matt Dell
Partner, Growth & Sales Leadership
Sales and business leader with three decades of building sales organizations. A former owner who helped grow and sell his company, and a former CEO.
Meet MattThe partners set the strategy and stay accountable for results. Behind them is our team, including marketing project managers and specialists.
Working together since 2009
A partnership with a track record
- 2009–2015
Hi-Line Utility Supply
Part of the leadership team that built a regional distributor into a national one, sold to a Fortune 500 company.
- 2015
Wise Fox founded
Consulting for growing businesses across marketing, sales and operations.
- 2023–2026
A health technology company
Led growth and the company itself from the inside.
- 2026
Wise Fox today
Fractional growth leadership for founder-led businesses.
What we believe
How we work
Strategy before tactics.
We decide where to go before deciding what to post, send or buy.
Growth is bigger than marketing.
Marketing, sales and systems have to work together, so we lead all three.
If it can't be measured, it can't be managed.
We set a baseline in the first 90 days and report against it.
We earn our keep.
Part of our pay is tied to growth above the baseline we set together.
The name
Why Wise Fox
- Strategic
- We solve the real problem, not just the obvious one.
- Adaptable
- We adjust quickly as markets and priorities change.
- Resourceful
- We find the most direct path to results, without wasting effort or budget.
Where we work
Chicago and Southwest Florida, with clients nationwide
We're based in the Chicago area and Southwest Florida, and we work with companies nationwide.
What clients say
The single biggest benefit of utilizing Wise Fox Solutions for marketing support is having total confidence in their integrity. Sara has up-to-date industry knowledge and her marketing support has been the very best.
Get a 30-minute growth review
Let's talk about your next stage of growth.
In 30 minutes, a partner will look at where you are, where your next growth should come from and the first step to get there. No obligation.