Merrill Manufacturing™ Company was founded in 1949, by Noel Merrill Anderson in a one-car garage in Iowa. In 1976, Noel's son, Stephen Anderson, moved back to his home state to work in the family business and In 1981 became the president of the company. Today, Merrill manufactures and sells the industry's largest selection of frost proof yard hydrants, pitless units, kits and adapters, well caps, tank tees, insert fittings and splice kits as well as one of the largest selections of other water well accessories in the industry.

Our mission is to protect the citizens of South Dakota by providing safe and secure facilities for juvenile and adult offenders committed to our custody by the courts, to provide effective community supervision to offenders upon their release and to utilize evidence-based practices to maximize opportunities for rehabilitation.

SPS Companies, Inc. is a wholesale distributor of products and services for residential and commercial contractors specializing in plumbing, mechanical & industrial piping, heating, ventilation, air conditioning, refrigeration, roofing, sheet metal and fire protection. SPS has three divisions: Plumbing & Heating, Fire Protection, and Roofing & Sheet Metal. Our Plumbing & Heating division has seven locations: five in Minnesota (Duluth, St. Louis Park, St. Paul, St. Cloud and Mankato), one location in ND (Bismarck), and one in Colorado (Park Supply of Colorado). We also operate our SPS Kitchen and Bath Showrooms (formerly Minnesota Standard Showplace and Dakota Standard Showplace Showrooms) under this division, with showrooms in St. Louis Park, Mankato, and Bismarck. Our Fire Protection division has seven locations: two which operate as Pipe Fabricators (Maple Grove, MN and Oak Creek, WI) and five as SPS Fire Protection (Howells, NE, Johnston, IA, Davenport, IA, Wichita, KS, and Blue Springs, MO). This division offers products such as pipe fittings, valves, sprinkler heads, pipe hangers, and fire protection accessories. Our Roofing and Sheet Metal division is located in Newport, MN and operates as SPS Metals, formerly Interstate Manufacturing and Supply. This division is a one stop supplier to professional contractors specializing in roofing, architectural sheet metal and specialty copper since 1977. SPS Companies, Inc. has been an Employee Owned Company (ESOP) since 1989.

SPRENGER MIDWEST, INC. was formed in 1979 for wholesale distribution of lumber, plywood, and other forest products to the retail lumber dealers and industrial accounts of the upper Midwest. Since then our business has grown because of our excellent mill sources, product line, and our solid, personal sales approach with emphasis on customer satisfaction.

Iowa based company in business as of 1955 Sales support team with a combined 49 years of experience Worldwide Sales and Service Support A+ rated Service Department A food service company based in Iowa with service in Nebraska, North Dakota, and South Dakota.

We are a one-stop shop that provides a wide variety of products, from cupolas to Infinity Shield (Foil Insulation), in order for you to focus on what you do best - delivering amazing post frame buildings to your clients. Give us a follow to get insight into MWI's atmosphere, learn tips & tricks, see industry-relevant surveys, post frame trends, etc. We're eager to assist our clients and end users with value-added content for their next build!

Marcus Lumber is a leading Home Improvement center located in Marcus, Iowa. A family owned and operated company Marcus Lumber was founded in 1920. Now in its fourth generation, Marcus Lumber continues to thrive while helping to build the communities who built us. For additional information visit our webpage www.marcuslumber.com and social media pages.

Great Lakes Communication Corporation is a family-owned CLEC (Competitive Local Exchange Carrier) offering telecommunication services for conference call providers worldwide, off-site data-hosting solutions, along with voice and data services for enterprise customers and carriers.

AMMI is a two-step wholesale distributor of lumber and building materials, serving independent retail lumberyards in a four state area from its Sioux Falls, SD distribution facility. Started in 1959, AMMI has become a destination for quality materials, lumber, and plywood from some of the industry's premier mills and manufacturers.

Oxidation Technologies is a system integrator specializing in using ozone for oxidation, with experience in a wide variety of ozone applications. We offer consulting, engineering, and service for your ozone application. We are dedicated to the understanding of oxidation use in industrial applications. Oxidation Technologies was formed by ozone application experts who wanted to take knowledge of ozone and uses for ozone to new heights. We have been providing ozone system integration, and ozone products for over 20 years. We now offer ozone integration along with H2O2 or UV systems to provide Advanced Oxidation Process (AOP) Solutions. Our goal is to provide engineering services along with consulting and basic advise on how ozone may work for your application. We know ozone is easy, but ozone application is not easy and require knowledge, experience, and the proper equipment for the job. We want every ozone installation, whether it be ours, or an existing system to achieve the goals required and to create positive reflection of the ozone industry as a whole. If you need help with your ozone application, or even just have a question of if ozone is right for you, please contact us today. We would be glad to see if we can put our experience to work for you.

We are located in Spencer, Iowa since 1977. We have provided sales and service for the products we represent in a territory which includes Iowa, Nebraska, North Dakota, South Dakota, Minnesota and Wisconsin. We take pride in meeting our customers needs. Check out our products page for a list of some of the items we provide. If you do not see a product you are looking for please contact General Traffic Controls and a friendly sales rep would be happy to assist you with any questions you may have.