Delivering superior services in the heavy highway construction industry
Since 1976.
Central Specialties, Inc. (CSI) is a third generation, family owned, general contracting company serving Minnesota, the Dakotas, and the greater Midwest. CSI was founded in 1976, over 40 years ago, by Al Minnerath with a vision and desire to provide next level services in the heavy highway construction market.
We are proud of the people who work for us and the care they put into every project. Thank you to all of our customers who rely on our team and our quality heavy highway construction services.
It's On Us. Committed to Excellence in Road Infrastructure.
At CSI, our motto is “IT'S ON US.” We believe our region deserves the best road infrastructure, and that's why we're dedicated to delivering superior quality in every project. Every team member is accountable for their work, ensuring that we uphold the highest standards of excellence. To be successful at CSI, all employees must embody our six core values, which guide everything we do. We take immense pride in the roads we build and the communities we serve.
Self-Motivated
We get the work done without being asked.
We take the initiative to learn and grow in our career.
We have the personal drive to achieve success.
We work smart and spend our time wisely.
Company Oriented
Our decisions are based on what is best for the company.
We believe that when our employees succeed, the company succeeds.
Get It Done Attitude
We do whatever it takes to get the job done.
We do not stop until the job is done.
We never give up.
Integrity
We are honest and committed.
We have strong principles.
We hold ourselves and our colleagues to the highest standards.
We hold ourselves accountable to uphold the company’s reputation, resources & future.
Excellence
We take pride in the work we do and never settle for second best.
We go the extra mile.
We are team oriented; we are only as strong as our weakest link.
Accountability
We do what we say.
We take responsibility for our teams.
We evaluate our mistakes and do not let them happen again.
Meet Our Team
Leadership Team

Jarrod Felton

Ryan Minnerath

Alex Sweep

Cash Johnson

Joey Johnson

Ross Larson

Grant Minnerath
Human Resources

Tiffany Marthaler

Ashley Wildman

Kaylynn Shughart

Rachel Jahner
Awards

ND DOT Ride Quality Award

MN DOT Best of Class Merit Award

MN DOT Safety Award
MN Army National Guard | Innovative Contracting Award | State of MN Grading & Base Award | Work Zone Safety Award
State of MN Merit Award | Joseph Holmes Safety Assoc. | MN Governor Certificate | Code of Ethics
Safety is our highest priority.
Our proactive approach revolves around being aware of our surroundings, speaking up when we see at-risk behaviors, fixing hazards as we see them, and reporting those corrective actions.
We believe that keeping our workforce and the public safe, while maintaining elevated levels of quality production, are essential to competing successfully in our industry.
Through customized and innovative training, proactive safety programs and the commitment of all our employees to achieving a safe work environment, we achieve and maintain accident and injury rates which are well below the national averages for the construction industry.
We are dedicated to making sure that the safety of every employee is our highest priority. We require that all our employees receive formal safety training on a regular basis.
Annual Safety Training
Hazwoper 8/40 Hour
MSHA
CPR/AED
First Aid
Confined Space
D.O.T. Training
Railroad Training
Toolbox Talks
Drug & Alcohol Testing Program
FMCSA
Mandatory PPE Requirements
Accident Investigation Program
Project Site Audits
Ready to build the
road ahead?
Our team is dedicated to delivering quality, safe, and reliable infrastructure solutions for projects of all sizes throughout the Greater Midwest Region (yellow counties). Partner with us and experience the excellence of our comprehensive road construction services for your next project.
