We Help Innovative Companies Grow 10x+ in 3 to 7 Years

We provide strategic consulting in FinOps, RevOps, and DataOps to help companies source capital and drive revenue through data-driven strategies.

We partner with ambitious founders, CEOs, COOs, and revenue leaders whose innovative growth companies are generating $1–10MM in annual revenue, scaling quickly or raising capital, and want to get it right the first time.

"Marion Street works as a true partner—where a lot of times it’s even hard to call them fractional because we feel like we have a full-time CFO and accounting team... It’s something that has substantially helped my business."

— Kristy F. SkillCycle

Colorful circular logo with the word 'SKILLCYCLE' underneath on a gray background.
The upSpring logo featuring the word "up" in gray, "spring" in orange, and an orange spiral above the text.

"It’s a finance shop with real humans that think, that can have a good time, that can smile. People are thoughtful, interesting, collaborative—and that’s a real strength. The company’s also flexible in ways that I haven’t always found consultants."

— Drew T., UpSpring Associates

Logo of Custos Fiduciary Services.

“Reliable, responsive, and resourceful. I think to me there would be three words that would apply. Reliable because you always come up with what we ask for. Responsive—you’re always very fast. Resourceful—you think out of the box.”

— Andreas B, Custos

The Problem

Inconsistent cash flow and missed targets

Data overload with no clear insights

Underperforming sales teams

Consistent burnout and scaling fatigue

Rejection from prospective investors

How Do We Help?

FinOps for Founders

For innovative growth companies needing capital and scalable financial systems. We deliver investment-ready data rooms, cash flow visibility, and financial strategy.

RevOps for Revenue Teams

For Founders, sales leaders, and COOs who need to streamline and scale. We align teams, tools, and tactics to close more deals faster and boost recurring revenue.

DataOps for Decision Makers

For growth companies drowning in data but starved for insights. We build dashboards and data strategies to guide smart decisions and optimize spend.

We GUARANTEE the value we deliver.

  • Tangible outcomes from day one

  • Custom playbooks—not canned advice

  • Investor-ready data rooms

  • Faster, more predictable revenue

  • Insightful dashboards that drive decisions

  • Hands-on strategic partnership

Our Growth Framework

A trifold approach combining FinOps, RevOps, and DataOps—delivered through playbooks, dashboards, and expert consulting that’s tailored to your unique business.

No fluff, no hidden costs. Just expert insights, real outcomes, and clear ROI at a pre-defined price. We define success metrics before we begin—so you always know what you're getting.

Hear the “Why”

“I started Marion Street Capital to help growth-minded founders get real traction—without wasting time or capital. With a background in finance and growth strategy, I bring Wall Street rigor and startup agility to every client.”

Sean Heberling, CFA – Founder & CEO

What’s Next?

  • We learn about your business, your goals, and the bottlenecks to achieving them.

  • We review your current state and identify high-impact levers.

  • We price an engagement where we  partner with you to execute and scale – with guaranteed results.

Free Pitch Deck Template

Get the investor-ready pitch deck used by successful founders to raise millions. Designed by experts. Battle-tested. Easy to customize.