ISG's AI Boom Is Real — the Numbers Just Put It in Scale

The stock market has a habit of compressing months of optimism into a single label. Right now the label is "AI." Slap it on a consultancy and something in the equity appears to justify itself. Information Services Group — a Connecticut firm with a roughly quarter-billion-dollar market value, ticker III — has been wearing that label hard, and the stock has moved: up about 21% in three months, off a 52-week low near $3.74. The natural question is whether the AI story is genuine or another priced-in narrative.

The data says it is real. It also says the "boom" is smaller — and slower — than the word implies, because it is happening inside a company that still grows in the single digits.

The AI book is already a third of revenue

Ignore the "contact center" framing for a second. ISG is not a vendor of call-center software. It is a technology research and advisory firm — the firm enterprises hire to figure out what to buy, what it should cost, and how to manage the vendors once they have it. That distinction matters, because it tells you where its AI exposure actually lives.

In the first quarter of 2026, ISG counted about $21 million of AI-related revenue — roughly a third of the quarter's $61.2 million total, and up sharply from $12 million a year earlier, a jump of about three-quarters. That AI work spans research, sourcing strategy, operating-model design, and the governance of technology spend. The firm says it served more than 350 clients with AI-focused research and advisory in 2025, three times the prior year.

This is the shape of an adoption curve, not a one-off. Management describes clients moving from pilot projects to real deployments, and toward hiring ISG to manage the sprawl: the average large enterprise, it says, runs ten to twenty-five different AI tools at once and needs someone to govern that chaos. That is the secular demand — adoption creates disorder, and disorder creates the need for an independent referee.

Now read the same numbers in percentage terms

Here is the tension that the headline smooths over. The AI book grew by three-quarters year over year, but the whole company grew by 3% in that same quarter, and by 6.4% in the second quarter, when revenue reached $65.5 million. The math is not contradictory — it is a base effect. AI is a third of the business compounding fast, while the other two-thirds — the traditional sourcing-advisory base — is roughly flat, with the Americas down 3% in the first quarter and Europe doing the heavy lifting, up 25%.

That is the classic early-compounding profile: a fast-growing line on a small base sitting inside a mature whole. It is directionally bullish, but it is not yet the kind of force that re-rates a whole company in a quarter.

The flagship deal makes the scale concrete. ISG's largest-ever contract, signed in Q1 2026, is a multiyear "AI governance" agreement to manage $300 million of a global manufacturer's technology spend across 200 vendors — an eight-year transformation. It is a landmark for the firm. And it contributes roughly $2 million a year. Against a base of about $245 million in annual revenue, that is the story in a nutshell: real, meaningful strategically, but a rounding error financially. The catalyst compounds; it does not arrive in one quarter.

What actually changes the case

The more interesting part of ISG's numbers is not the AI top line but the shift underneath it. Recurring revenue — the fixed-fee research and governance retainers that recur without chasing a new project every time — has risen to about 47% of the total, up 9%. That is the model becoming more annuity-like, and it shows up in margins: adjusted EBITDA reached $32.2 million for 2025, up 28%, with the margin expanding to over 13% from about 10% the prior year. Operating income rose 48% in the first quarter. AI is being used internally too, cutting delivery cost — margin expansion doing the work that top-line growth is not yet big enough to do.

That combination — a growing recurring base, rising margins, and a 3.5%-ish dividend on a small-cap balance sheet holding roughly $29 million in cash — is a more credible bull case than the "AI catalyst" framing alone. On adjusted per-share earnings of $0.33 for 2025, the stock is not expensive; price the story as the current growth rate and the multiple is modest.

Where the caution sits

The honest caveat is timing and scale of the narrative versus the numbers. ISG's own CEO says clients remain cautious on the macro and geopolitical environment, spending on AI-led cost optimization rather than broad transformation. Enterprise AI demand is early, lumpy, and still measured in pilots that take quarters, not days, to convert — the largest contract in the firm's history will take about eight years to run its course.

For the resolved investor, the useful read is not "buy the AI boom." It is that ISG is a small, reasonably priced, dividend-paying early indicator of whether enterprise AI adoption is real — and its own books show that adoption is genuine but early. That is the correct altitude: real enough to keep watching, early enough that the stock has room to disappoint a market already pricing the label. Whether the curve bends your way depends on how much patience you have for a transformation measured in percentages of a third of a $245 million business — not in the contact-center boom the headline promises.