Competitors

Competitors describe Gartner, Inc.'s market in their own filings and calls. These verified passages and visual pages show where their strategies meet, using source documents preserved in Sources.

Forrester Research (FORR)

Gartner's closest listed pure-play — an independent syndicated research-and-advisory house built on the same subscription model and the same Research / Consulting / Events segment structure. It is the one peer that names Gartner in its own 10-K as a principal direct competitor, making it the cleanest read on the shared market.

Forrester names Gartner directly: in its own 10-K risk factors it identifies Gartner as a principal direct competitor in the market for research and advisory services — the rare instance of a peer putting the subject on the page by name.

We compete principally in the market for research and advisory services, with an emphasis on customer behavior and customer experience, and the impact of technology on our clients’ business and service models. Our principal direct competitors include other independent providers of research and advisory services, such as Gartner, as well as marketing agencies, general business consulting firms, and survey-based general market research firms. Some of our competitors have substantially greater financial and marketing resources than we do.

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Forrester's flagship subscription research product, Forrester Decisions — its direct answer to Gartner's syndicated research seats, sold to the same 'business and technology leaders' and now wrapped with a generative-AI assistant.

Our primary subscription research service is Forrester Decisions. This portfolio of research services is designed to provide business and technology leaders with a proven path to growth through customer obsession.

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Information Services Group (ISG) (III)

A Stamford, Connecticut-based (the same city as Gartner) technology research and advisory firm whose ISG Provider Lens evaluations and ISG Events map directly onto Gartner's Magic Quadrant research and Conferences franchises. It competes most sharply in IT sourcing, benchmarking and provider-selection advisory — the enterprise-decision-support market Gartner also serves.

ISG describes itself in the same terms Gartner uses for its own business — a technology research and advisory firm built on proprietary market data and research — and is headquartered in Stamford, Connecticut, Gartner's home city.

Information Services Group, Inc. (Nasdaq: III) is a global AI-centered technology research and advisory firm. A trusted partner to more than 900 clients, including 75 of the world’s top 100 enterprises, ISG is a long-time leader in technology and business services that is now at the forefront of leveraging AI to help organizations achieve operational excellence and faster growth.

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ISG's research-and-events engine mirrors Gartner's two largest segments: its ISG Provider Lens provider-evaluation research is a structural analogue to Gartner's Magic Quadrant, and its sold-out ISG Events / AI Impact Summits play in the same conference market as Gartner's Conferences business.

Our ISG Research business delivered double-digit growth, led by our ISG Provider Lens® provider evaluation research and ISG Events. Client interest in AI-related content continues to rise, evidenced by our five sold-out AI Impact Summit events held across the globe in 2025.

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ISG's own framing of the competitive field it shares with Gartner — a fragmented advisory sector where any provider of sourcing, benchmarking or IT-strategy advice, including large consulting firms and niche advisors, is a competitor.

The business information services and advisory sector is highly competitive, fragmented and subject to rapid change. […] Our competitors include any firm that provides sourcing or benchmarking advisory services, IT strategy or business process consulting, which may include a variety of consulting firms, service providers, niche advisors and, potentially, advisors currently or formerly employed by us.

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Informa (INF)

Informa collides with Gartner on two fronts. Its majority-owned, Nasdaq-listed arm Informa TechTarget names Gartner directly as a specialist tech-research competitor, and the parent Informa PLC is the world's largest B2B live-events group — the closest scaled competitor to Gartner's Conferences segment.

Informa TechTarget lists Gartner first among the 'larger, established' specialist tech-research players it competes with, and states the basis on which it competes against them — a competitor's own map of the analyst-research field Gartner leads.

Informa TechTarget (Nasdaq: TTGT), Informa's majority-owned tech-research arm: Providers of specialist tech research include several larger, established players such as Gartner, IDC, Forrester, Frost and Sullivan, and others. We compete against these companies based on the specificity of our analysis, content creation capabilities, and analyst coverage against specific technology categories.

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Informa TechTarget's sizing of the market it plays in — the intersection of technology and B2B marketing at roughly $20 billion a year. It is a broader pool than Gartner's IT research subscriptions, but one where specialist tech-research providers, Gartner among them, compete for the same technology-vendor and buyer budgets.

Informa TechTarget (Nasdaq: TTGT), Informa's majority-owned tech-research arm: We sit at the intersection of technology and B2B Marketing, a large and growing market worth an estimated $20 billion annually.

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Informa PLC's stated scale in live events — the segment that competes with Gartner's Conferences business. The parent claims the leading global position in B2B Live Events with more than 800 brands, dwarfing Gartner's conference footprint in raw event scale even though Informa's events are largely trade exhibitions rather than Gartner's paid-analyst symposia.

Informa PLC (LSE: INF), parent group: Over the last 10+ years, Informa has built the leading position in B2B Live Events globally, including more than 800 specialist Brands serving 30+ growth market categories in all major geographic regions.

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Competitors

Forrester Research (FORR)

Information Services Group (ISG) (III)

Informa (INF)

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