Flexible gas piping
Ranked first among the manufacturer’s U.S. representative agencies by sales for 33 years. A flexible gas-piping line that began with no distribution in Michael Dungan’s territory became a multimillion-dollar book of business.
Manufacturer representation
Build the market for your line.
The right distribution. Contractors who ask for your product. A team that stays involved in both.
Discuss representationSend a short introduction.
Seven states. Eight people. One agency across the Upper Midwest.
Results, by line.
Different products. Different buyers. The same focus on building a market that keeps buying. Select a result to see the story.
HVAC equipment
Contractor education. Distribution ready to support it.
$1.5M → $10MRead the HVAC equipment growth storyAnnual sales of the line in Minnesota, Wisconsin, Illinois, Indiana, North Dakota and South Dakota.
ICM Controls
HVAC controls and contractor education
$150k → $1MRead the ICM Controls growth storyAnnual sales in SEI’s territory, over three years. Result covers the broader line.
Glasfloss
Commercial filtration and distributor development
+200%Read the Glasfloss growth storySales growth in SEI’s territory, 2026 year to date. Result covers the broader Glasfloss line.
Superior Radiant Products
Infrared heating, sold through application knowledge
#1Read the Superior Radiant Products growth storyU.S. representative agency by sales since 2021, as ranked by the manufacturer.
Professional tools
Double-digit year-over-year growth every year since 2019.
Figures reported by SEI. Annual figures are sales of the individual line in the stated territory. 2026 figures are year to date.
Start with the market you want to build.
Bring your product line, your existing distribution and the markets you want to develop. These are the questions we’ll work through together.
Territory and product fit
Which states matter most, which applications you serve and how your line fits with SEI’s representation.
Existing distribution
Who stocks the line today, where branch support is strong and where the market needs more coverage.
Contractor demand
Who chooses and installs the product, and what they need to understand before recommending it.
Training and support
What counter staff, sales teams, crews and inspectors need to see, and where SEI can help.
In Illinois, SEI has helped manufacturers gain traction through distribution experience and relationships across the contractor and engineering communities. Meet our eastern sales leadership.
The application changes the sales conversation.
From factory-built housing to driving bays, SEI connects a product’s capabilities with the people deciding how to use it.
HVAC equipment
Move more of the equipment work into the factory.
Heat pumps for multifamily and modular construction
SEI introduced a multifamily heat-pump line into Minnesota and worked with contractors and developers project by project on equipment selection. For one modular builder, Michael Dungan helped evaluate all-electric units that could be prewired before shipment. That removed the on-site gas-piping work tied to those units and let the builder complete more of the equipment before the modules reached the site.
Infrared heating
The application sells the heater.
Infrared tube heaters for driving bays and car washes
SEI explains infrared heating in the context of the building: where a tube heater fits and which configuration suits the application, taken directly to building owners as well as contractors. Driving bays and car washes call for different considerations; for wet, corrosive environments SEI explains the value of stainless-steel configurations. Pinseekers and Holiday car washes illustrate the range of SRP applications, and SRP is specified across Topgolf locations.
Flexible gas piping
A product launch needs people who can explain it.
A CSST gas-piping launch in North Dakota
When Brent Johnson introduced a CSST gas-piping line in North Dakota, signing distribution was the first step. He trained contractors and inspectors, worked with distributor sales teams and made joint calls with their territory managers so the people quoting the product understood it as well as he did.
Training that supports your line.
We train contractor crews, distributor sales teams, branch staff and inspectors. Each session connects the product to its application: where it fits, how it is installed, and what the people selling and supporting it need to know.
The people covering your market.
Seven people in the field, with Brian Quittschreiber supporting all seven states from inside sales. Explore the interactive territory map.
Minnesota
Wisconsin
Illinois
North Dakota
South Dakota
Michigan
Indiana
A first conversation
Let’s talk about your line.
Tell us what you make and where you want to grow. We’ll discuss where SEI’s team and experience fit.
Prefer email? info@salesengineersinc.com
Or call (952) 944-0773.
No account needed. Please keep sensitive pricing and customer information for our conversation.
Distributors and contractors: request the line card for your territory.