Chapter 3

Competitive Moat

Gartner's moat is wide in relative terms and easy to measure: roughly 68% gross margins, ~25% returns on capital, decades of wallet retention above 100%, and market share taken from a direct rival running the identical model. That rival, Forrester, is now shrinking and loss-making. The harder point is that scale settles Gartner's rank inside its category, not the category's direction — and the same 2025 wallet-retention crack that appeared at Gartner has been bleeding through Forrester for four years.

The size of the gap

Gartner and Forrester Research sell the same thing: subscription research, advisory, consulting, and conferences to enterprise technology and business leaders. They are the two pure-plays in syndicated IT research, and Forrester's own filings name the same "CV growth engine" flywheel Gartner describes. That shared model makes the comparison clean — and the gap between them is not incremental.

Sources: Gartner FY2025 10-K, Consolidated Statements of Operations [1]; Forrester FY2025 10-K, Consolidated Statements of Operations [2].

Gartner booked $6,497.2 million of revenue and $1,025.7 million of operating income in 2025 [3]. Forrester booked $396.9 million of revenue and a $113.2 million operating loss [4]. Gartner is roughly sixteen times Forrester's size on revenue, and the profit lines point in opposite directions. Gartner's Insights subscription contract value alone, at $5,155 million [5], is about eighteen times Forrester's entire $292.4 million research contract value [6].

The gap has widened, not held. Indexed to 2021, Gartner's revenue is up 37% through 2025 while Forrester's is down 20% — a divergence that runs straight through the 2022–2025 window in which enterprise technology budgets tightened for both.

Source: derived from reported revenue, FY2021–FY2025 10-Ks [7]; [8].

The margin story is starker than the revenue story. Gartner's operating margin compressed from 20.9% in 2023 to 15.8% in 2025 — real pressure, examined in The Subscription Engine — but it stayed firmly positive. Forrester's went from 6.1% in 2022 to a 28.5%-of-revenue operating loss in 2025.

Source: derived from reported financials, FY2022–FY2025 10-Ks [9]; [10].

What the moat is made of

The economics above are the output; the mechanism is a scale-and-data flywheel. Gartner fields more than 2,400 business and technology experts serving clients in about 90 countries, and it has published under the Gartner brand for more than 40 years [11]. That analyst base talks to enterprise buyers and technology vendors across every major function; the volume of those conversations is the raw material for the research, and the research is what the next cohort of clients pays to read. The same intellectual property is then distributed across three channels — subscriptions, conferences, and consulting — each of which Gartner describes as a source of "substantial operating leverage" [12]. In 2025 that included 53 in-person conferences with more than 83,000 attendees [13], each one a lead-generation and renewal surface for the subscription base.

The honest counter sits in Gartner's own 10-K. Directly after listing its differentiators, the company states that "limited barriers to entry exist in the markets in which we do business," and repeats in its risk factors that "low barriers to entry exist" [14]. A company with a genuine moat writing that it has low barriers to entry is worth taking at face value: anyone can publish a research note, and free information on the internet — now including general-purpose AI — competes at the margin. The reconciliation is that the barrier is not to entry but to scale. Matching Gartner's 2,400-analyst coverage, four decades of accumulated content, and its conference and sales infrastructure is what no entrant has done, and the widening gap over Forrester — a 40-year-old firm with the same model and none of the disadvantages of a cold start — is the evidence that scale, not novelty, is the defended asset.

Pricing power, and where it shows

The cleanest structural evidence of pricing power is wallet retention above 100%. Wallet retention measures the contract value retained from clients who were also clients a year earlier; a reading above 100% means the retained base paid more than it did the year before, which for a subscription book embeds both seat expansion and annual price increases. Gartner ran GTS wallet retention above 100% every year from 2021 through 2024 — and pairs that with an explicit strategy "to increase our revenue and operating cash flow through more effective pricing" [15].

Sources: FY2021–FY2025 10-Ks, MD&A business measurements — 2020–2021 [16]; 2022 [17]; 2023 [18]; 2024 [19]; 2025 [20].

Then, in 2025, both channels dropped below the 100% line for the first time since the pandemic: GTS wallet retention fell to 96% from 102%, and GBS to 99% from 106% [21]. Gartner attributes the decline to lower spending by existing clients rather than to price cuts, and the pricing intent in the filing is unchanged. The interruption is real, but it is the first in five years against a long record of net expansion — a durable pricing signal that faltered, not one that was never there. The AI-substitution reading of that same drop, and management's loss-reason evidence against it, is taken up in AI Demand and Substitution.

The mirror

Forrester is the most useful stress test available, because it isolates the model from the company. It runs Gartner's exact playbook at a fraction of the scale, and it is the clearest picture of what the syndicated-research model looks like without the moat.

Sources: Gartner FY2025 10-K, MD&A and Statements of Operations [22], [23]; Forrester FY2025 10-K, MD&A and Statements of Operations [24], [25].

Forrester's decline is not a 2025 event. Its contract value fell 6% to $292.4 million [26], its client count fell 7% to 1,797, and its wallet retention was 87% [27] — the extension of a slide that has shrunk research revenue in each of the last three years [28]. The 2025 operating loss reflects $110.7 million of goodwill impairment against its Research reporting unit, taken in two charges of $83.9 million and $26.8 million [29].

Two readings of that mirror sit in genuine tension. The first is reassuring for Gartner: the same forces hit both firms — Forrester cites the macro environment, US trade policy, and weaker bookings as the triggers for its impairment [30], the same cyclical causes Gartner names, and neither firm attributes its weakness to AI substitution. Under this reading, scale is precisely what lets Gartner absorb a cyclical shock — a 4-point wallet-retention dip and margin compression — that pushes a sub-scale competitor into losses and impairments. Gartner is taking share as Forrester retreats.

The second reading is the warning. Forrester has been contracting since 2022, in the same product built for the same buyers, and 2025 is the first year Gartner's own retention broke the same 100% line. A moat protects rank within a category; it does not, by itself, tell you the category is growing. If syndicated research is structurally eroding — the possibility examined in AI Demand and Substitution — Forrester is what the leading edge of that erosion looks like, and Gartner would be the larger, later, better-defended version of the same trajectory rather than an exception to it.

The evidence available today favors the first reading over the second, but does not close it: Gartner's absolute scale is growing, its retention sat above 100% until a shock with an identifiable cyclical cause, and its returns on capital remain near 25% while Forrester's turned negative. What would move the read is divergence after the cyclical causes clear. If Gartner's wallet retention recovers back above 100% once the US federal comparison laps in 2026 while Forrester's keeps falling, the moat is doing its job. If both continue to bleed, the shared model — not the relative gap between the two firms — is the thing that matters, and the moat will have protected a shrinking franchise.