Antenna Group: Agency Profile

Antenna Group is an independent integrated marketing, public relations, and public affairs agency specializing in cleantech, energy, climate, real estate, mobility, and B2B technology. Headquartered in New York with offices in Europe and Asia, the firm works with companies building at the intersection of technology and sustainability.

The firm ranked #40 on O'Dwyer's 2026 rankings with approximately $20 million in fees. CEO Keith Zakheim has positioned Antenna around a thesis that energy and technology communications have converged — as AI infrastructure drives demand for power, water, and land, the firms advising in those sectors are no longer niche but core to enterprise value.

Founding & History

Antenna Group was founded in New York in the early 2000s, building its practice around high-growth technology companies and, increasingly, cleantech and sustainability-focused businesses as those categories emerged and scaled. The firm expanded internationally, acquiring Rubikon PR (Czech Republic) and building a presence across Europe and Asia serving clients in energy, mobility, and technology.

Cleantech & Energy Practice

Antenna Group's core differentiator is its depth in cleantech and energy transition communications — a category that moved from niche to mainstream as ESG investing, climate regulation, and AI energy demand converged. The firm advises companies across solar, wind, storage, grid technology, electric vehicles, sustainable real estate, and the power infrastructure required by AI data centers.

CEO Keith Zakheim's 2026 positioning is direct: the race to build AI infrastructure — and the regulatory, permitting, and community communications required to access power, water, and land for data centers — is making energy and technology communications converge in real time. Antenna is building around that convergence.

Services

Antenna Group works across PR, public affairs, digital marketing, branding and strategy, and website design. The firm launched Conscious Compass — an AI-powered tool for assessing brand positioning and developing purpose-driven communications strategy.

Why It Matters

Antenna Group is the specialist communications firm closest to the intersection of two of the most consequential commercial stories of 2025–2026: the AI infrastructure buildout and the energy transition. As every major AI company needs to communicate about power sourcing, data center siting, and regulatory relationships — and every major energy company needs to communicate about technology adoption — the firms with expertise across both categories have a structural advantage that is only growing.

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