Building the Operational Backbone for HVAC Finance: Our Investment in Coral

Blackhorn Ventures is excited to announce our investment in Coral, an agent-native fintech platform that streamlines incentives and financing for HVAC upgrades in commercial and residential buildings. We're participating in Coral's $7.5M Seed round alongside ResilienceVC, Twelve Below, Floating Point, Accion Ventures, Remarkable Ventures, New Climate Ventures and Watsco Ventures, a business unit of Watsco, Inc., the largest HVAC distributor in North America.

The hidden bottleneck in HVAC

When core heating and cooling systems fail, residential and commercial building owners face a high-stakes decision — typically around $25K for most US households — once a decade, under time pressure and with limited clarity and supply chain visibility into their options. Even when high-efficiency equipment wins on total cost of ownership, three realities push owners toward the "cheapest upfront" option:

Incentives are fragmented and complex, spread across hundreds of overlapping state, city, utility, and OEM programs.
Applications are error-prone and slow, with repayment cycles that routinely stretch past 90 days.
Financing rarely matches the upgrade reality, leaving contractors and customers to bridge the affordability gap on their own.

The result: missed upgrades, higher energy costs, and contractors who can't reliably sell the better option at the kitchen table. Coral advances eligible rebates to contractors instantly, offering an “instant net price” to homeowners and businesses, and then originates third-party project financing for the remaining amount on an off-balance-sheet basis.

Coral's approach: agent-native workflow for automating rebates and instant financing

Coral is building the intelligence and financing layer for building upgrades — starting with heat pumps and expanding across the broader electrification stack (batteries, solar, EV charging, induction ranges, and more). Starting with HVAC, Coral is building an agent-native system of record in a market that still runs on spreadsheets and email threads.

The core product advances eligible rebates to contractors instantly. Coral's AI-powered eligibility engine and automated filing let contractors quote an "instant net price" rather than a confusing mix of list price, rebate forms, and uncertain timing. That changes the sales conversation entirely.

Early results have been strong: Coral has processed over 3,500 rebates with a 99.98% repayment rate and rebate cycle times roughly half the industry norm. The model is designed to scale without becoming balance-sheet heavy — incentive advances are supported by an asset-backed facility, while future contractor financing products are being architected as off-balance-sheet origination with third-party lenders.

Why we invested

At Blackhorn, we back companies enabling the real-economy transition — where software and financial infrastructure unlock deployment at scale. Coral fits squarely into our themes of Energy Efficiency, Labor Augmentation, and Enabling Distributed Deployment. Across HVAC, electrical, and plumbing, US replacement spend is ~$580B annually, ~70% of which is financed. Coral is building the operational backbone for HVAC companies with an agent-native design. Since we met the team three years ago, before company formation, they have been hyper-focused on starting with a single workflow that delivers immediate ROI - with the vision to expand to become the system of record for all operational data. Once agents operate any system, switching costs become prohibitive.

Defensibility through integrations and underwriting know-how. Coral's edge isn't just "finding rebates" — it's underwriting and processing incentives accurately across edge cases, backed by formal program relationships and deep integrations that keep eligibility criteria current. That's hard for generalists to replicate.

Powerful distribution pull. Coral is scaling through industry partners who already sit inside contractors' daily workflows — national distributors and OEMs who want higher conversion, more successful contractor networks, and better data.

A compounding data advantage. Because contractors use Coral across their quotes and projects, the platform captures a uniquely valuable dataset spanning contractor performance, project characteristics, and product sell-through. That creates a flywheel: better underwriting feeds better lender outcomes, which opens the door to high-margin analytics revenue over time.

Traction with some of the largest players in the industry. Coral has already demonstrated meaningful early scale through relationships with industry leaders like Mitsubishi Electric Trane HVAC (15,000 contractors in network), and Watsco, Inc. (120,000 contractors in network). Today, the platform is live with ~100 contractors. Coral has financed more than $25M in incentives, and has processed ~3,500 rebates — with a clear roadmap to expand across new states and financing products.

A Team That Knows How to Scale Fintech, Has Built Production Systems and Understands Data Modeling

Coral is led by Samir Pendse (CEO) and Nizar Dhamani (CTO) — a founding pair whose backgrounds map directly to what the business needs to execute. Samir brings a fintech strategy and operating background from SNOWE, BCG, and ACCION, giving him fluency in the incentive, lending, and capital markets infrastructure that Coral is building on top of. Nizar brings deep product, UX, and machine learning experience building high-scale, UX-centric platforms at companies like Rent the Runway, Betterment, and Care/of.— critical for a platform where the core value prop depends on accurately parsing eligibility rules across hundreds of programs and delivering a seamless contractor experience. Coral is supported by advisors from BlackRock, Capital One, Palantir, Brex, and HVAC/industrial specialists, providing strategic depth in credit, data, and go-to-market.

How we'll help

We believe Coral can become the default infrastructure for incentives and project financing across the $350B+ financed share of HVAC, electrical, and plumbing upgrades in the US, and a natural strategic target for building-tech platforms, utilities, OEMs, or PE-backed rollups as the category matures.

We're looking forward to supporting Coral as they deepen contractor stickiness, expand geographically, and build the financing and data rails that turn one-off rebates into an always-on upgrade engine. We'll be focused on strategic introductions across OEMs, lenders, and regulatory stakeholders; helping scale B2B SaaS with complex integrations; capital markets thinking around credit facilities; and cross-portfolio collaboration where relevant.

This funding will help Coral expand nationwide, support a broader set of upgrades like water heaters and batteries, and launch new financing products that reduce the energy burden for building owners. The team is hiring across multiple roles. We're thrilled to partner with Samir, Nizar, and the Coral team on this journey.

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