Before the Tipping Point: The Real Bottlenecks Stopping Climate Startups from Scaling (with Sam Kullar, ClimateDoor)

Climate tech is hard to scale for real reasons: long sales cycles, infrastructure constraints, policy risk, and messy data.

In this episode of Before the Tipping Point: Where AI and Sustainability Meet Climate Leadership, Lourdes sits down with Sam Kullar, Executive Director at ClimateDoor and Director of Portfolio Growth, to break down what actually stalls early-stage climate ventures and how strong operators unlock traction.

Sam brings the rare combination of consulting-grade rigor (ex-Deloitte) and founder-speed execution (8x founder). Together, they cover:

• How to diagnose the true scaling bottleneck when the problem looks “complex”
• What founders over-analyze in climate tech (and what rigor is actually worth keeping)
• The non-negotiables that turn pilots into repeatable, scalable revenue-so you don’t stay stuck in “science project” mode

Sam also shares what he’s learned building ClimCanada and supporting mission-driven founders through funding, partnerships, and growth.

Guest: Sam Kullar, ClimateDoor
Focus: Early-stage climate ventures-scaling, funding, partnerships, commercialization