SmartBid offers premium invitation to bid software for commercial general contractors worldwide. Through a feature-packed interface, contractors can streamline their project data and subcontractor communication. Integration with STACK allows users to quickly view plan files and seamlessly launch the takeoff and estimating process.


SmartInsight is an online construction networking platform that affords general and subcontractors the opportunity to increase industry connections, identify additional projects and leverage powerful prequalification and compliance tools. Integration with STACK powers an easy-to-use plan viewer and connects users to instant markup and measurement tools.

Dodge Data & Analytics

Dodge Data & Analytics is a a technology-driven construction project data, analytics and insights provider. Integration with STACK offers comprehensive data, streamlined workflows and improved bid tools – ultimately helping contractors to find, bid and win more work.


eSUB is the leader of web-based project management and document control software designed specifically for subcontractors. Built on 30-plus years of expertise, eSUB’s easy to use, software-as-a service solution helps self-performing contractors reduce risk, and increase standardization, accountability, and productivity.

Associated Builders and Contractors

The Ohio Valley Chapter of the Associated Builders and Contractors organization have partnered to provide members continued education and easy access to the industry’s only 100% cloud-based takeoff and estimating platform.

Federation of California Builders Exchanges

STACK and the Federation of California Builders Exchanges have partnered with to bring members instant access cloud based takeoff and estimating tools available which are easily accessed through various regionalized virtual planrooms.

Construction Association of Michigan

Offering largest plan room in the state of Michigan, the Construction Association of Michigan provides daily construction reports. STACK integration to their online planroom affords members the ability to instantly view and bid on thousands of public projects.

Virtual Builders Exchange

As pioneers in the virtual planroom space, the Virtual Builders Exchange of Texas not only connects members with invaluable project news and opportunity, but also encourages increased accuracy and efficiency through a one-click integration to STACK takeoff and estimating software.

Builders Exchange of Wisconsin

The Builders Exchange of Wisconsin has been serving the construction community since 1958 and pioneered the use of on-line planrooms in the state. VIRTUAL PLAN ROOM users may view bid documents by selecting the STACK icon to measure, perform counts or print files locally.