c15.io provides a multifamily retrofit platform called Momentum that streamlines the entire process from planning to construction, helping building owners meet carbon limits and secure subsidies. The platform standardizes RFPs for contractor bidding and offers portfolio optimization tools to maximize decarbonization potential and identify financing opportunities. It serves real estate portfolio owners, lenders, contractors, and utility/government entities seeking to accelerate building electrification.
Funding
Funding not disclosed
Founders
Product
Problem
Multifamily building owners face complex, time-consuming retrofit processes that require coordinating multiple stakeholders, managing fragmented workflows, and navigating evolving carbon regulations. The lack of standardized tools and transparency makes it difficult to prioritize investments, compare contractor bids, and secure financing for decarbonization projects.
Solution
c15.io offers Momentum, a purpose-built platform for multifamily retrofits that streamlines workflows from initial planning through construction. The platform enables portfolio owners to post standardized RFPs and receive comparable contractor bids online, simplifying the award process. Momentum also provides portfolio optimization tools that help owners maximize decarbonization potential, allocate capital effectively, and identify financing opportunities. By integrating building science principles with digital workflows, the platform gives stakeholders unprecedented transparency and speed, allowing them to move from planning to construction with confidence.
Target Audience
Primary customers are multifamily real estate portfolio owners, lenders deploying capital for energy efficiency, contractors seeking retrofit projects, and utility or government programs tracking city-scale GHG reductions.
Features
- Standardized RFP posting and online bid collection for easy contractor comparison and informed award decisions
- Portfolio optimization engine that assesses decarbonization potential and supports capital allocation across properties
- Financing opportunity identification integrated into the planning workflow
- Role-based dashboards tailored for portfolio owners, lenders, contractors, and utility/government programs
- Built on 50 years of building science research to ensure technically sound retrofit recommendations