When I advise founders in climate tech, the first question I ask is rarely "What’s your technology?"—it’s "What can you measure that proves your pathway to scale?" Investors in this space want to see both strong business fundamentals and credible environmental impact. That means the KPIs you track during fundraising must bridge commercial viability and climate outcomes. Below I share the exact KPIs I recommend founders track and present, organized by theme, with practical notes on how to collect and present them.

Revenue and growth metrics (commercial credibility)

Investors need to know your model can scale and pay for deployment. These are the baseline metrics:

  • ARR / MRR: Annual Recurring Revenue (or Monthly). For subscription or service models, ARR/MRR shows predictable cash inflows. Highlight both gross and net ARR growth rates.
  • Revenue growth rate (MoM / YoY): Early-stage traction is often measured month-over-month, later by year-over-year. Show cohort growth to illustrate retention.
  • Customer acquisition cost (CAC): Include breakdown by channel (direct sales, channel partners, digital). In climate tech, field sales and pilot costs can make CAC unusually high—document it.
  • Lifetime value (LTV): Estimate the present value of a customer relationship. For hardware + service models, include recurring service revenue and spare parts.
  • Payback period: How long to recover CAC. Investors want a clear path to payback within a reasonable window (benchmarks vary by tech: software-like offerings often <2 years; heavy hardware longer, but justify with margin).

    • Unit economics and margins (scalability)

    These KPIs show whether your model becomes profitable as you scale.

  • Gross margin per unit or customer: Include service margins post-deployment—maintenance and software subscriptions often drive long-term margins.
  • Contribution margin: Revenue minus variable costs per unit/customer. Demonstrates leverage as volume grows.
  • Installed cost vs. manufactured cost: For hardware, break out BOM, assembly, logistics, and installation costs. Show expected learning curve (cost per unit vs. cumulative units).

    • Cash and runway (financial health)

    Straightforward but essential:

  • Burn rate (monthly): Net cash outflow per month.
  • Runway (months): Cash on hand divided by burn—present scenarios (current burn, scaled burn with hires, conservative buffer).
  • Funding needs and use of funds: Connect the dollar ask to KPI milestones (e.g., "raise $3M to reach 12 months runway and deploy 50 pilot units, reducing unit cost by 20%").

    • Traction and adoption (validation)

    Climate tech investors want evidence adoption isn't just a lab phenomenon.

  • Number of pilots / paid pilots: Distinguish between free pilots, paid pilots, and commercial deployments.
  • Pilot-to-commercial conversion rate: What percentage of pilots convert to paying customers? Highlight length of sales cycle and common blockers.
  • Pipeline value and stage distribution: Provide a sales pipeline table with deal stages, expected close dates, and ARR potential.
  • Customer concentration: % revenue from top 3 customers—show diversification plan.

    • Impact metrics (climate credibility)

    Don’t bury your environmental outcomes in a footnote—make them as rigorously measured as your financials.

  • CO2e avoided or removed (tons/year): Be explicit on methodology and assumptions (baseline, measurement period, verification approach). Use recognized frameworks (GHG Protocol, ISO).
  • Cost per ton of CO2e avoided/removed: Critical for comparing to alternative solutions; show current and projected costs as you scale.
  • Energy / resource efficiency improvements: e.g., % reduction in kWh, water, or materials vs. baseline.
  • Verification / third-party validation: Note audits, certifications (e.g., Verra, Gold Standard) or partnerships with universities—these materially reduce perceived risk.

    • Technology and deployment KPIs (risk and readiness)

    Investors in climate tech often price in technical risk. Demonstrate how you manage it:

  • Technology Readiness Level (TRL): Be honest. Map product roadmap to TRL improvements and required milestones.
  • Pilot success rate / uptime: For deployed equipment, show availability, MTTF (mean time to failure), and service response times.
  • Cycle time to scale: Time from pilot to replicate deployment—critical for manufacturing and GTM planning.
  • IP status: Patents filed/granted, proprietary processes, or trade secrets that protect defensibility.

    • Market and go-to-market KPIs (commercialization velocity)

    These metrics demonstrate your ability to acquire customers efficiently at scale.

  • Sales cycle length: Average time from lead to contract. Climate tech often has long cycles—show how your model shortens it (e.g., channel partnerships or government contracts).
  • Conversion rates: Lead → pilot → contract conversions, by channel.
  • Partner pipeline: Strategic partners (integrators, utilities, EPCs) and MOUs—list traction and expected revenue contributions.

    • Team and hiring KPIs (execution capacity)

    Team metrics often determine whether investors believe you can hit milestones.

  • Key hires planned and timeline: Technical, manufacturing, sales leadership—map hires to fundraising tranches.
  • Employee retention / burn per hire: Especially for senior hires, show market-comp benchmarking and dilution strategy (equity vs cash comp).

    • Risk and policy KPIs (external dependencies)

    Climate tech lives at the intersection of markets and policy. Quantify those dependencies:

  • Policy exposure: % revenue sensitive to subsidies, tax credits, or regulatory shifts.
  • Supply chain concentration risk: % of components sourced from single vendors or regions.
  • Time to regulatory approval: For regulated deployments, expected approval timelines and contingency plans.

    • How to present KPIs to investors

    Numbers alone aren’t persuasive—context is. I recommend:

  • Use clean visuals: Tables and charts for trends (ARR growth, burn, CO2e avoided trajectory).
  • Show scenarios: Best, base, and conservative cases with corresponding funding needs and milestones.
  • Benchmark where possible: Compare to relevant competitors or sector benchmarks (e.g., cost per ton for DAC vs nature-based solutions).
  • Be transparent on assumptions: Include the math behind CO2e calculations, customer lifetime, and cost curves.
    • Stage Most important KPIs Investor focus
    Pre-seed / Seed Pilots, TRL, CAC, burn & runway, CO2e methodology Technical validation, founding team, pilot traction
    Seed / Series A ARR/MRR, pilot-to-commercial conversion, unit economics, cost per ton Commercializability, scalable unit economics, initial customers
    Series B+ Gross margin, LTV/CAC, manufacturing cost curve, verified impact Growth, defensibility, pathway to profitability

    Finally, tailor your KPI set to your specific climate vertical. A battery storage startup needs different operational KPIs (cycle degradation, charge/discharge efficiency) than a carbon removal company (tons removed, permanence, verification). Investors are experienced at spotting boilerplate—but they invest in founders who can connect clear, defensible metrics to a realistic scaling plan. Track both the business metrics that show you can grow and the impact metrics that justify your reason for being in climate tech. When you can present both with honest assumptions and clear measurement methods, you’ll stand out in fundraising conversations.