Associate Members

Advantage Highway Supply

MOT supplies and highway traffic supplier

Al Warren Oil Co.

Full service fuel and lubricant marketer and supplier

American Structurepoint

Architectural and engineering consulting firm

Ames Engineering

Laser profiling equipment for measuring pavement smoothness

Antigo Construction

Concrete rubblization, cracking & seating, and breaking for removal

Asphalt Shingle Grinding Service

Grinding asphalt shingles into RAS for use in HMA

Assured Partners of Indiana

Insurance, surety, risk management, employee benefits, deferred compensation plans


Asphalt plant equipment 

BCA Environmental Consultants

Environmental compliance including air, stormwater, and SPCC permitting, reporting and development


Producer of Fortifix - asphalt interlayer reinforcement

Blankenship Asphalt Tech & Training

Consulting, Custom Training, Product Development, Dynamic Friction Testing (DFT), Full Binder and Mix testing, Forensics

Bluegrass Testing Laboratory

Construction materials testing lab

BKD CPAs & Advisors

Audit & assurance, tax, advisory, wealth management, business transition, big data & analytics

Brandeis Machinery & Supply Co.

Sales & service support for Wirtgen Group & Leeboy products

Brandeis Machinery & Supply Co.

Sales & service support for Wirtgen Group & Leeboy products

Bruce Carter and Associates

Environmental consultants


Sales and marketing for paving products

CE Hughes Milling

Pavement milling services

Chicago Testing Laboratory

Materials testing, inspection, training, mixture designs, and geotechnical & civil engineering

Constellation Energy

Natural gas supply and risk management services

Chicago Testing Laboratory

Materials testing, inspection, training, mixture designs, and geotechnical & civil engineering

Controls Group USA

Construction materials testing of soil, concrete, cement, asphalt, aggregates, and bitumen

Craft Laboratories

Industrial chemicals and cleaning supplies

CWMF Corp.

Hotmix asphalt plants and equipment

D2 Land & Water Resource

Geosynthetics & geogrids, erosion & sediment control, storm water, coir, pavement

DLZ Engineering

Engineering and architectural design, construction services, surveying and planning

Earthwave Technologies/ FleetWATCHER

Construction telematics provider, materials delivery solutions, off-road, e-logs

Edw. C. Levy Group of Companies

Producer & supplier of steel furnace slag aggregate

EJ Co.

INDOT castings, signal & lighting castings, monument boxes, manhole risers, bridge drains

Freije & Freije Auctioneers

Large equipment auctioneer

Forta Corporation

Reinforcement additives for asphalt and concrete

Frost Brown Todd

Legal services

Greenwalt CPAs

Audit & assurance, tax, consulting, financial, and accounting services

Hanson Aggregates, Midwest

Crushed limestone and gravel & natural sand

HaulHub Technologies

E-Ticketing solutions


Heaters, tanks and related products for a wide variety of industries

HWC Engineering

Full-service consulting engineering firm for both the public and private sectors

Kinetrex Energy, a Kinder Morgan Company

Supplier liquid natural gas


Warm mix technologies

Paving equipment sales, service, maintenance, consulting, training

Martin Marietta Materials

Crushed stone, gravel, and topsoil

Mid-America Milling Co. (MAMCO)

Asphalt and concrete milling, bridge deck overlay removal, and surface milling

Midwest Mole

Full-service boring, tunneling and directional drilling


Productivity app for roadway workers that enables location-based documentation and communication

Ontario Trap Rock

Friction aggregates

Patriot Engineering and Environmental

Environmental, geotechnical, and construction materials testing

Pavement Technology

Manufacturer of laboratory asphalt and aggregate testing equipment

Phoenix Services

Steel slag and blast furnace slag

Pine Instrument Co.

Manufacturer of testing equipment, including gyratory compactor

PRI Asphalt Technologies Midwest

Asphalt bitumen testing and evaluation

Purple Wave Auction

Online equipment Auction Service

Reliable Asphalt Products

Asphalt plant equipment

Ritchie Bros. Auctioneers

Auctioneer for buying and selling heavy equipment and trucks

Road Builders Supply

New and used asphalt plant equipment

Arkema Road Science

Manufacturer of asphalt emulsifiers and anti-strip chemistries


Manufacturer of paving equipment

Roadwidener LLC

Shoulder and laydown material handling equipment 

Rogers Group 

Aggregate, hot mix asphalt and heavy construction services

Roland Machinery

Heavy equipment sales and rentals

RPM Machinery

Heavy equipment sales and rentals

Rudd Equipment Co.

Full service dealer for Volvo Paving, Link-Belt Cranes, and construction equipment


Construction services, material testing, geotechnical, environmental, and storage tank inspection


Road and street maintenance repair

SEH of Indiana

Transportation, water, environmental, design build, trails, surveying, site/land development

Sherwin Industries

Asphalt and sealcoat manufacturing and pavement and maintenance product distributor

Shoreline Aggregate

Limestone, sand and gravel aggregate supplier

Site Supply

Supplier of ACE Fibers and ARAMID Fibers

Southeastern Equipment Co.

Construction equipment sales, rental, parts, and service

Specialties Co.

Soil stabilization and modification, asphalt milling, and other services

STR Building Resources

Consultation and analysis, surveys, specifications and project management

Stansteel and Hotmix Parts & Service

New and used hot mix plant equipment, controls, service, and parts

Surface Systems & Instruments

Profilograph systems and 3D survey/topography systems

TopCon Solutions

Precision positioning machine control, including paving systems 

TransTech Systems

Non-nuclear density gauges PQI (asphalt) and SDG (soils)

Tri State Asphalt

Asphalt emulsions, polymer modified binders, cold mix, seal coats, and crack sealants

United Consulting

Engineering consultant in transportation, bridges, water/wastewater, environmental, and construction inspection

US Aggregates

Aggregate Supplier

West Side Tractor Sales Co.

New, used, rental, parts, service for John Deere Construction