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CFO · Founder-Operator · Practical AI

I build businesses,financial systems,and what comes next.

I connect finance, operating judgment and technology to help businesses make better decisions. My perspective comes from 25+ years in the founder, owner and CFO seats.

25+ Years Founder/Operator
$100M+ Part-Owner · Enterprise Revenue
200+ People Led
$200M+ Cumulative Revenue · Built From $0
Karl and Stacey Ohlemann

The person behind the work

An operator first.
A CFO where it counts.

I’ve built companies, managed capital and led teams through decisions where the answers weren’t obvious. That experience shapes how I work: establish financial truth, understand the operating reality and turn both into useful action.

I care about the people carrying the responsibility, not just the problem on the spreadsheet. Clear thinking, direct communication and follow-through matter.

Complex situations with high stakes and no clear playbook are where I do my best work.

More about my perspective →

A connected operating perspective

Finance at the center. The whole business in view.

Finance & capital

Build the financial picture.

Liquidity, forecasting, margin, capital, controls and stakeholder confidence. A CFO operating model that connects the numbers to decisions.

My finance approach →
Leadership & execution

Make the priorities real.

Turnaround, growth, teams and operating cadence, informed by ownership and executive responsibility.

How I lead →
Technology & AI

Build better ways to work.

Systems, practical automation and AI-assisted development, grounded in business judgment and accountable human review.

My technology perspective →

Construction & infrastructure: a major operating pillar, from WIP and job costing to project cash flow, bonding and capital. Explore the sector depth →

Selected experience

The record behind the perspective.

Founder · CEO · CFO

Macadam Floor & Design

Built from a standing start to more than $200M in cumulative revenue over 13 years, developing the finance function and operating systems alongside the business.

Explore the company-building record →
Chief Financial Officer

Broadband Development Group

Helped lead a rapid financial turnaround while strengthening profitability, forecasting, cash visibility and lender readiness.

Explore the CFO record →
Current work & experience

One career. Several operating lenses.

KSIG advisory, BlackBoxx systems development, AI evaluation work and earlier ventures. Dates, roles, education and affiliations are on the full career page.

View the complete career →

Metrics and examples reflect my career experience, not results promised for a future engagement.

Work with me

The right starting point for your business.

KSIG Advisors

Executive leadership & strategic finance.

Interim and fractional CEO/CFO leadership, with CFO depth and a coordinated ecosystem of executive and specialist support.

Explore KSIG →
BlackBoxx.ai

AI systems & implementation.

AI-enabled software, integrations and operating workflows built around real requirements, permissions and review.

Explore BlackBoxx →
Executive opportunities

A deeper conversation about fit.

I’m open to the right full-time CFO or senior executive finance opportunity and select advisory roles.

View my CFO résumé →

I use AI agents to build and improve the systems behind my own work and brands. Through KSIG and BlackBoxx, we adapt that same approach for clients, with people accountable for the decisions. Explore client engagement systems →

Selected thinking

A few ideas worth a closer look.

Finance leadership

What the modern CFO actually does.

Economics, capital and operating decisions belong in the same conversation.

Read the essay →
AI & judgment

AI multiplies range.

What changes when domain experience can move directly into working systems.

Read the essay →
Ownership & continuity

Owner dependency.

The systems and responsibilities that help a company operate beyond one person.

Read the essay →
All insights →

Married to Stacey for over 28 years. Three daughters. A miniature goldendoodle named Rover. We renovated a circa 1888 home in Roslyn, Washington — one of the most unique small towns in the Pacific Northwest — where we are proud full-time residents.

Community & civic involvement →

The family story that shaped me →

Let's talk.

An executive role, an advisory engagement or a business problem that needs a fresh perspective—let’s start with a conversation.