

Leadership When You Need It.
For Results That Last.
What We Do
fortis altum offers Fractional Executive services for Change, Transformation, Marketing, Project Management, and Growth for manufacturing companies.
When customers work with us, they will:
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Get top leadership without full-time costs
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See fast, measurable results
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Solve critical challenges with expert focus
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Uncover new opportunities for growth
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Scale leadership to fit their needs
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Test strategies with low risk and high return.
Our Services
Fractional Executive
A part-time CxO who is embedded with your change team. We will develop your change/transformation strategy, evaluate your team, systems, and processes. A few examples include entering new markets, switching to new technologies, or facing rapid business growth.
Interim Project Services
When you need coverage for an existing Senior Project Executive on leave or during a transition, we can step in to lead your team. Whether it's for a few weeks or longer periods, our expertise and experience in leading teams to deliver results will stabilize and strengthen your project teams.
Change & Project Advisory
No matter how seasoned you are as a leader, having a trusted change management advisor by your side can elevate your outcomes from solid to exceptional. Whether you need a fresh perspective on a major initiative, support in assessing organizational performance, or strategic guidance to align teams with company goals, we’re here to help.
Training & Coaching
With decades of experience, we help leaders sharpen their project management skills—improving planning, risk management, and team performance. Whether you need to refine your approach or tackle complex initiatives, we provide the coaching and tools to drive success. Not sure where to start? We’ll guide you to focus on what delivers the biggest impact.
We’re Good with Numbers
>30
Years of Experience
20+
Years in Change Management
>40 k
hours leading projects
3
Intl. Partners
ABOUT
Lars Buttkus,
Our Founder
Lars is a seasoned change manager and fractional leader with over 30 years of leadership and executive experience across engineering, manufacturing, and process industries. Known for his hands-on, people-first approach, Lars specializes in restructuring small to mid-sized companies, driving international expansion, boosting profitability, and unlocking new markets.
His work spans Europe, Asia, and North America, supporting businesses in entering new territories and leading teams through transformative change. Whether embedding into organizations, providing fractional executive leadership, or offering advisory services, Lars excels as a coach and mentor—guiding teams to achieve performance boosts and cultural shifts with precision.
Collaborative and data-driven, Lars brings vision to every project, helping midsized firms and startups thrive while also training leadership teams at larger corporations.
When he’s not steering businesses forward, Lars can be found hiking new trails with his dog, embracing adventure wherever it leads.

TESTIMONIALS

CONTACT
Let’s Work Together
fortis altum, inc.
A fractional CxO consultancy based in the MidWest.
Working everywhere.
