Granite

Granite Telecommunications is headquartered in Quincy, Massachusetts and holds the distinction of being the largest privately held telecommunications company in the United States, with approximately 2,400 employees serving multi-location businesses, franchise chains, and government organizations across all 50 states.

Multi-Location Specialization

Granite's core competency is managing telecommunications for organizations with complex, distributed footprints — particularly restaurant chains, hospitality groups, retail franchises, and healthcare networks with dozens to thousands of locations. Where pure cloud UCaaS providers sell on feature count, Granite competes on deployment consistency: the ability to standardize voice, connectivity, and managed services across every location through a single managed agreement.

Microsoft Teams UCaaS

Granite's UCaaS service is built on Microsoft Teams Direct Routing, enabling organizations in the Microsoft 365 ecosystem to leverage Teams as their primary communication platform with Granite managing the carrier layer. Combined with Granite's connectivity offerings — DIA, MPLS, and SD-WAN available across the same account — organizations can consolidate all technology infrastructure under a single nationally accountable vendor.

Calling Plan Flexibility

Granite supports named user unlimited domestic, named user metered domestic, and concurrent call path pricing models — giving procurement teams the flexibility to optimize licensing structures across different location types (headquarters vs. seasonal/part-time locations vs. call center environments).

The Granite Differentiator

For KeaneAdvisors clients managing multi-location enterprise technology, Granite's combination of nationwide owned-network infrastructure, private company stability (no public market pressure), and deep operational experience in hospitality and retail makes it a differentiated choice from both the large carriers and the pure-play UCaaS vendors. The company's EasyAccess portal provides real-time usage reporting and inventory management across all locations.