Graybar

Wholesale Trade · St. Louis, MO · 8,800 employees · Led by Kathleen Mazzarella, CEO

Certifications

9 across 6 years (2021–2026)

SPARK benchmark

Validated scores publishing when the 2026 research cycle closes

The Story

Why Graybar is Most Loved

Graybar, a Fortune 500 corporation and one of the largest employee-owned companies in North America, is a leading distributor of electrical, communications, and data-networking products and a provider of supply-chain management and logistics, with 300+ North American distribution facilities.

Positive Vision: Long-term goals over short-term gains, building a stronger company for future generations.
Values: An ownership culture where employees share in the company's success; leadership weighs employee impact in decisions.
CEO Strengths: Kathleen Mazzarella models the core values (integrity, ownership, long-term view, customer focus).
Respect: Welcomes all backgrounds; every employee should feel belonging, ownership, and inclusion.
Loved Culture: Working together toward shared goals, with employee owners accountable for results.
Benefits: Aligned with the employee-ownership model, including an annual opportunity for eligible employees to purchase Graybar stock.

Best Practice Institute

Best Practice Institute is the research organization behind Most Loved Workplace® certification, the SPARK Model, the Love of Workplace Index®, and The Workplace Report.

The Workplace Report

The Workplace Report is BPI's original workplace culture research and editorial briefing series for CEOs, CHROs, people leaders, talent leaders, and employer-brand teams. It turns BPI's 25 years of research, Most Loved Workplace® certification data, SPARK findings, and current workforce signals into practical analysis leaders can use.

The report format includes executive summaries, research-backed articles, company examples, methodology notes, and practical implications for retention, hiring, culture, leadership, and employee experience. New research and analysis is published on an ongoing editorial cadence at /workplace-report.