Gartner Research

Gartner Magic Quadrant for Unified Communications as a Service, Worldwide


UCaaS offerings are increasingly functionally competitive with their premises-based alternatives. Key 2015 improvements include an improved UCaaS user experience, API connectivity with leading cloud applications, and mobile-first user deployments.

Published: 03 September 2015

ID: G00270209

Analyst(s): Daniel O'Connell , Bern Elliot

Table Of Contents

Market Definition/Description

Magic Quadrant

  • Vendor Strengths and Cautions
    • 8x8
    • AT&T
    • Avanade
    • BT
    • CSC
    • Google
    • HP
    • iCore
    • Interoute
    • Microsoft
    • Mitel
    • NTT Communications (Arkadin)
    • Orange Business Services
    • RingCentral
    • ShoreTel
    • Star2Star Communications
    • ThinkingPhones
    • Verizon
    • Vonage Business
    • West
  • Vendors Added and Dropped
  • Vendors Added and Dropped (Not Applicable)
    • Added
    • Dropped

Inclusion and Exclusion Criteria

Evaluation Criteria

  • Ability to Execute
  • Completeness of Vision
  • Quadrant Descriptions
    • Leaders
    • Challengers
    • Visionaries
    • Niche Players


  • SMBs
  • Midsize Enterprises
  • Large Enterprises

Market Overview

  • UCaaS Vendor Types
  • Key Market Trends
  • A Worldwide Magic Quadrant
  • Other Notable UCaaS Vendors

Gartner Recommended Reading

  • Ability to Execute
  • Completeness of Vision

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