Building Right in South Dakota: Expanding with Purpose

This year marks an exciting new chapter for Catalyst Construction.

We have officially planted roots in Sioux Falls, South Dakota. While Catalyst has called Milwaukee, Wisconsin, home since day one, expanding west has enabled us to bring our purpose-driven construction approach to new communities.

We’re excited to lead the South Dakota office together, supported by a talented local team that we’re proud to introduce.

Establishing this office is not just about growth, but about building meaningful relationships and creating long-term value for the people here.

Why Catalyst Came to South Dakota

The journey began when Catalyst’s leadership identified an opportunity to better serve clients in South Dakota.

With strong ties to the region and a deep background in both construction and development, I stepped in to lead the charge as General Manager.

Soon after, Blake Turbak joined as Senior Project Manager, bringing local knowledge and hands-on expertise. Together, with a growing team, we’ve built a foundation rooted in trust, collaboration, and shared values.

South Dakota is unique compared to Catalyst’s other markets. It’s a place where communities are tightly connected, where “everybody knows everybody.” That closeness comes with responsibility; earning trust here doesn’t happen overnight.

It’s taken patience, consistency, and commitment to doing what’s right for clients, even when it’s the harder path.

Over the past several years, word of mouth and strong partnerships have carried us forward, helping establish Catalyst as more than just a builder; we’re becoming a trusted partner.

Our projects reflect the heart of this region: schools, churches, and nonprofits that serve as cornerstones of community life. Projects like Great Plains Lutheran and our ongoing partnership with The Village of Harmony Hill exemplify the kind of impact we want to have. Harmony Hill, in particular, has played a pivotal role in our story.

Their trust during one of the most uncertain times in recent memory gave us the opportunity to prove ourselves, and their continued vision for community development continues to inspire us.

Building Relationships That Last

What truly sets Catalyst apart in the area is how we build relationships.

From business development efforts led locally by Michael Klatt to the way our team executes projects with precision and care, our approach is always people-first.

We’re not afraid to have tough conversations, hold ourselves accountable, or challenge the status quo if it means finding better solutions for our clients.

Looking ahead, our goal isn’t to be the biggest builder in South Dakota, but to be the most trusted partner. With a strong presence in Watertown and a growing footprint in Sioux Falls, I see an enormous opportunity to bring Catalyst’s values to more organizations and communities in the years ahead.

And while leadership may set the vision, it’s our talented local team that brings that vision to life every day. I’m excited to introduce them and share the role each plays in making Catalyst South Dakota what it is today.

Meet Our Catalyst Construction South Dakota Team

Our South Dakota team is more than builders. They are neighbors, problem solvers, and trusted partners invested in the success of this community.

Each person brings unique skills and experiences, along with a shared commitment to building with purpose and creating spaces that truly matter.

Jon Regnerus, General Manager

As General Manager of Catalyst’s South Dakota office, I oversee operations and growth across the region. I am passionate about building authentic relationships with clients, design partners, and subcontractors to ensure projects align with community needs and run smoothly from start to finish.

With a strong background in leadership and collaboration, I guide my team with integrity and a people-first mindset, reflecting Catalyst’s commitment to purpose-driven construction.

Blake Turbak, Senior Project Manager

As Senior Project Manager for Catalyst Construction’s South Dakota office, Blake Turbak brings deep construction knowledge and hands-on leadership to every project.

He manages schedules, budgets, and subcontractor coordination with a solutions-driven approach, ensuring high-quality results that serve clients’ long-term goals.

Blake is recognized for his attention to detail, proactive communication, and dedication to helping organizations bring their vision to life.

Ken Turbak, Superintendent

As a superintendent at Catalyst, Ken approaches every project with careful planning and foresight, always building the job in his mind to maintain momentum and keep things running smoothly.

What stands out most to him about Catalyst is the strong relationships built with customers, ensuring they feel confident and informed from the very first shovel in the ground.

With deep roots in South Dakota, Ken takes pride in his projects and in Catalyst’s commitment to investing time with clients long before construction begins. A favorite project of his is the “Our Little Village” daycare, which he found especially meaningful both as a grandfather who values quality childcare and as a community member who recognizes its importance.

Alexis Purvis, Assistant Project Manager/Project Coordinator

Alexis is an assistant project manager/project coordinator at Catalyst’s South Dakota office, where she helps get each project off the ground and keeps them running smoothly.

Alexis works closely with the senior project manager and superintendent to manage subcontractors, vendors, and site logistics, navigating the fast-paced environment where no two days are ever the same.

Alexis values Catalyst’s collaborative and respectful team culture, and she takes pride in helping shape the landscape with projects that make a lasting impact. Projects like the Village of Harmony Hill, a one-of-a-kind assisted living facility recognized statewide for its unique design and thoughtful execution.

Derek Winterboer, Estimator

Derek is an estimator in Catalyst’s Sioux Falls office, where he spends his days analyzing plans, performing takeoffs, and preparing or refining project budgets.

Derek enjoys the variety of projects Catalyst takes on and appreciates the company’s strong core values. Excited to be part of Catalyst’s growth in South Dakota, Derek looks forward to contributing to projects that will leave a lasting impact on the community.

Osvaldo Nunez, Assistant Superintendent

As an assistant superintendent at Catalyst, Osvaldo spends his days reviewing plans, coordinating contractors, and ensuring schedules and communications are clear across the project team.

Osvaldo values the camaraderie among his colleagues and is excited about Catalyst’s growth and role in shaping the South Dakota community.

One project that stands out to him is the new church in Brandon, SD, where he enjoyed seeing the build come to life from the ground up and navigating the complexity of its interior design.