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Geoffrey Dethlefsen Appointed as Executive Vice President & President of Building Climate Solutions at Lennox International

PUBLIC · LIINov 02, 2026

Position

Executive Vice President

Company

Lennox

Joseph F. Nassab
RichardsonManufacturingEnergy

Description

On November 2, 2026, Lennox International Inc. announced the appointment of Geoffrey Dethlefsen as Executive Vice President & President, Building Climate Solutions, effective January 1, 2027. This follows the retirement announcement of Joseph F

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Company Information

Company

Lennox

Location

Richardson, Texas, United States

About

Lennox is a leader in energy-efficient climate-control solutions. We are committed to sustainability and creating comfortable, healthier environments for residential and commercial customers. Our innovative portfolio includes cooling, heating, indoor air quality, and refrigeration systems, along with a comprehensive range of HVAC parts, supplies, and services that support the full lifecycle of customer needs.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.