O’Connor Company partners with dozens of manufacturers who are looking for a powerful partnership to promote products. 

Let our deep and long-standing relationships within the engineering and contracting community help you extend your reputation to our multi-state region - South Dakota, North Dakota, Minnesota, Iowa, Nebraska and Wyoming.

Explore our Trusted Manufacturers

    • Filter Housings
    • Air Filters
    • Dust Collectors
    • Air Pollution Control Equipment
    • Air Handling Units
    • Rooftop Units
    • Condensing Units
    • Heating/Cooling Coils
    • Makeup Air Units
    • Air Rotation Units
    • Bearing Protection Rings
    • Universal Mounting Brackets
    • Coils
    • Duct Collectors
    • Flow Control Technology Products
    • Building Ventilation Management Strategies
    • Heat Exchangers
    • Pumps
    • Heat Transfer, Separation & Fluid Handling
    • Heat Recovery
    • Medical & Process Chillers
    • Air Separators
    • Triple Duty Valves
    • Plate & Frame Heat Exchangers
    • Pumps & Expansion Tanks
    • Booster Systems
    • Preinsulated Duct Systems
    • Electric Motors
    • Wall Mount Air Conditioners
    • School Geothermal Systems
    • Actuators
    • Electric Coils
    • Gas Detection Systems
    • Dehumidification Units
    • Makeup Air Equipment
    • High Enthalpy Fixed Plate Recovery Ventilation Systems
    • Commercial & Industrial Fans & Blowers
    • Compressors
    • Filtration Systems
    • Roof-top Curb Adpaters
    • VRV Systems
    • Mini Split A/C Systems
    • Air Handlers & Rooftop Units
    • Chillers & Condensing Units
    • Fan Coil & PTAC Units
    • Water Source Heat Pumps
    • Compressors
    • Computer Air Dispersion Systems
    • Fire Supression Range Hoods
    • Fabric Air Dispersion Systems
    • Airflow Measurement
    • VAVs
    • Air Handling Units
    • Fan Coil & Blower Coil Units
    • Evaporative Condensers
    • Fluid Coolers
    • Open Cooling Towers
    • Non-Chemical Water Treatment
    • Geothermal Systems
    • Water Source Heat Pumps
    • Belts
    • Kitchen Ventilation Systems
    • Hoods, Exhaust fans & Direct-Fired Heaters
    • Controls & Sensors
    • Custom Air Handling Units
    • Kitchen Ventilation
    • Ice Storage Tanks
    • Air-to-Air Exchangers
    • Heat Recovery Equipment
    • Registers
    • Grills
    • Diffusers
    • Industrial Chimney Products
    • No-Chase Grease Ducts
    • Free Cooling Chillers
    • Electrode Steam Humidifiers
    • Gas Humidifiers
    • Livesteam Humidifiers
    • PreVent Air Intake Screens
    • Hail Stop Guards
    • Labratory Air Flow Control Systems
    • Control Dampers
    • Fire Dampers
    • Louvers & Dampers
    • Sound Control
    • Radiant Heaters
    • Custom Air Handling Units
    • Spiral Duct
    • Sound Attenuators
    • Swimming Pool Dehumidification
    • Industrial Dehumidification
    • Air Filters
    • Grease Filters
    • Washable Filters
    • Gas-Fired Radiant Heating Systems
    • Fiberglass Ducts
    • Air Filtration Systems
    • Germicidal Air Filters
    • Laboratory Exhaust Systems
    • Axial Flow Fans
    • Energy Recovery Systems
    • Classroom Unit Ventilators
    • Duct Heaters
    • Fresh Air Heaters
    • Steam Humidifiers
    • Electric Boilers
    • Draft Inducers
    • Specialty Fans
    • Dryer Duct Booster Fans
    • HEPA/ULPA Filters
    • Gas Phase/Carbon Filters
    • Air Cleaners
    • Pleated Air Filters
    • Chilled Beams
    • Displacement Ventilation
    • Underfloor Air Distribution
    • Motors
    • Ultraviolet Lamp Systems
    • Air Units
    • Controls Platform
    • Water/Air Heat Pump
    • Noise Control Products
    • Vibration Control Products
    • Silencers
    • Floating Floors
    • Digital Controls
    • Variable Frequency Drives