Business Growth

The Agentic Economy: How to Grow a Business When AI Agents Do the Buying

In October 2025, Gartner put a number on a shift most founders had sensed but few had quantified: by 2028, the firm predicts, AI agents will intermediate more than $15 trillion in B2B spending, with as much as 90% of B2B purchases touched by agents along the way (Gartner, 2025). Treat that as a forecast, not a fact, analyst predictions miss, and this one is aggressive. But even a fraction of it materializing would rewire how service businesses are found, evaluated and bought. This cornerstone examines the strongest available evidence on the agentic economy, separates verified research from vendor hype, and lays out a preparation playbook a 5-7 figure service business can execute without betting the company on any single prediction.

Joshua Agonya Pi'Rwot

By Joshua Agonya Pi'Rwot

Founder, Business Growth Accelerator

Executive summary

Gartner projects AI agents will intermediate more than $15 trillion in B2B spending by 2028. This cornerstone guide examines the evidence behind the agentic economy and the preparation playbook for service businesses.

Section 1

The five challenges at a glance

Five structural challenges define the agentic transition for service businesses, and each is grounded in published research rather than vendor decks. The table below summarizes them. Two caveats apply. First, most of the evidence base consists of analyst predictions, directionally useful, but not guarantees; Gartner's 25% search-decline forecast, for instance, has drawn credible methodological criticism (Search Engine Journal, 2024). Second, the challenges compound: a firm that is invisible to agents (challenge one) cannot be shortlisted by them (challenge two), and a firm that buys fake agentic tooling (challenge four) burns the budget it needed for real preparation. The pattern across all five is the same: leverage is shifting from firms that present well to humans toward firms that prove well to machines, while the final decision, in most high-stakes service purchases, remains stubbornly human (Gartner, 2025). Founders should read the table as a diagnostic rather than a to-do list: identify which two challenges hit your operating model hardest, then weight the playbook in the final three sections accordingly. For most 5-7 figure service businesses, the binding constraints are challenge one (discovery) and challenge five (commoditization), because both attack the referral-and-reputation engine that built the firm in the first place.

Section 2

Challenge one: discovery is moving from search boxes to buying agents

The first verified signal arrived before agents could buy anything. Gartner predicted in February 2024 that traditional search engine volume would fall 25% by 2026 as chatbots and virtual agents substitute for queries (Gartner, 2024). The prediction is contested, Search Engine Journal published a detailed critique of its assumptions (Search Engine Journal, 2024), but the direction is corroborated by independent behavioral data showing rising zero-click sessions and growing AI referral traffic. The more rigorous evidence comes from academia. Princeton-affiliated researchers introduced Generative Engine Optimization (GEO) at ACM KDD 2024, testing nine content strategies across 10,000 queries and finding that techniques such as citing sources, adding statistics and including quotations improved visibility in generative-engine responses by up to 40%, with effects varying by domain (Aggarwal et al., 2024). The discovery surface is also moving inside software: Gartner predicts 40% of enterprise applications will feature task-specific AI agents by the end of 2026, up from less than 5% in 2025 (Gartner, 2025), meaning your prospective client may encounter recommendations inside their project-management or finance tooling, not in a browser. The strategic consequence for service businesses is blunt: rankings you cannot see, on result pages that no longer exist, decided by models you cannot petition. The only durable response is to publish content and data that machines can verify, quote and attribute.

Section 3

Challenge two: when your next buyer is an algorithm's shortlist

The headline number deserves precise framing. At its IT Symposium/Xpo in October 2025, Gartner predicted that by 2028, AI agents will intermediate more than $15 trillion in B2B spending, with roughly 90% of B2B purchases handled by agents at some stage (Gartner, 2025; Digital Commerce 360, 2025). This is a prediction about intermediation, agents researching, comparing, negotiating and executing, not a claim that humans exit the loop. It builds on a decade of Gartner machine-customer research: by 2028 the firm expects 15 billion connected products capable of behaving as customers (Gartner, 2023), and CEOs polled by Gartner expect 15-21% of their revenue to come from machine customers by 2030 (Gartner, 2024). Executives surveyed believe at least 25% of consumer purchases and business replenishment requests will be substantially delegated to machines by 2030 (Gartner, 2024), again, an expectation, not an outcome. Gartner's accompanying analysis is the operative part for founders: agent-intermediated commerce will run on 'verifiable data feeds and standardized trust frameworks' that let agents compare offers at high frequency (Digital Commerce 360, 2025). Service firms that sell through narrative, a persuasive site, a compelling discovery call, lose framing power when the first reader is an algorithm assembling a shortlist from structured attributes: scope, price bands, response times, verified outcomes, reviews. If those attributes are not published, the agent does not infer them. It omits you.

Section 4

Challenge three: hype, agent washing and the coming cancellation wave

The agentic economy has a credibility problem, and Gartner itself documented it. In June 2025 the firm predicted that more than 40% of agentic AI projects will be canceled by the end of 2027, citing escalating costs, unclear business value and inadequate risk controls (Gartner, 2025). The same release identified 'agent washing', vendors rebranding chatbots, RPA and AI assistants as agents without substantial agentic capability, and estimated that only about 130 of the thousands of vendors claiming agentic AI are real (Gartner, 2025). Gartner analyst Anushree Verma was blunter still: most current agentic projects are 'early stage experiments or proof of concepts that are mostly driven by hype and are often misapplied' (Gartner, 2025). A January 2025 Gartner poll of 3,412 webinar attendees found only 19% of organizations had made significant agentic investments, while 42% were conservative and 31% were waiting or unsure (Gartner, 2025). Note the apparent contradiction with the adoption forecasts, 40% of enterprise apps with task-specific agents by end-2026 (Gartner, 2025), and resolve it correctly: both can be true. Rapid embedding of narrow agents inside software coexists with widespread failure of ambitious custom projects. For a growth-stage service business the dual risk is symmetrical: overinvest in washed agents and you torch scarce capital; dismiss the category because of the hype and you forfeit the preparation window competitors are using.

Section 5

Innovative solutions

The encouraging news is that the highest-leverage preparations are cheap, standards-based and useful even if the forecasts undershoot. First, generative engine optimization: the KDD 2024 research found that citing credible sources, adding statistics and including expert quotations measurably raised generative-engine visibility (Aggarwal et al., 2024), practices that also improve content for human readers. Second, structured data: schema.org, the vocabulary founded in 2011 by Google, Microsoft, Yahoo and Yandex, lets a service firm declare its Organization, Service, Offer, FAQ and Review data in machine-readable JSON-LD (Schema.org, 2024). Third, llms.txt: Jeremy Howard of Answer.AI proposed this markdown file in September 2024 as a curated guide to a site for LLMs (Answer.AI, 2024); it remains a proposed standard with uneven adoption, but it costs an afternoon. Fourth, transaction rails: the Agentic Commerce Protocol, an Apache 2.0 open standard co-developed by OpenAI and Stripe, already powers Instant Checkout in ChatGPT for Etsy sellers and Shopify merchants (Stripe, 2025; OpenAI, 2025), and Anthropic's Model Context Protocol (2024) standardizes how agents connect to tools and data. Service businesses cannot adopt all of this overnight, but productized offers with published scope and pricing are the precondition: an agent can transact a defined package; it cannot transact 'it depends.' Finally, Gartner's own recommendation, tiered engagement with premium pricing for human-led service (Gartner, 2025), turns the human layer from cost into product.

Section 6

Solution framework

Synthesize the evidence into four layers, in dependency order. Layer one: discoverable. Publish source-cited, statistics-rich content on the questions buyers ask agents, per the GEO findings (Aggarwal et al., 2024); add llms.txt; audit what ChatGPT, Claude, Perplexity and Gemini currently say about your firm and category monthly. Layer two: verifiable. Convert marketing claims into checkable facts, named case studies with numbers, third-party reviews, credentials, and complete schema.org markup, because Gartner expects agent commerce to run on verifiable data and trust frameworks (Digital Commerce 360, 2025). Layer three: transactable. Productize at least one offer with fixed scope, price and start conditions; expose booking or intake through standard tooling; track the Agentic Commerce Protocol as it expands beyond retail (Stripe, 2025). Layer four: human. Since Gartner predicts 75% of B2B buyers will prefer human-prioritizing experiences by 2030 (Gartner, 2025) and 69% already use sales reps to validate AI-generated insights (Gartner, 2026), design and price explicit human touchpoints, strategy sessions, named senior advisors, response-time guarantees, as the premium tier rather than free overhead. The layers are sequential for a reason: human premium pricing only works if agents can find and verify you well enough to put you on the shortlist where humans make the final call. Run the stack as a quarterly operating review, not a one-time project.

Section 7

Evidence-based action plan

Days 1-30: measure exposure. Quantify what share of pipeline depends on organic search, the channel Gartner predicts will shrink (Gartner, 2024). Query the four major assistants with your buyers' top ten questions and record whether you appear, who does, and which sources get cited. Run a structured-data audit; most service sites fail it. Days 31-60: ship the cheap fixes. Implement Organization, Service, FAQPage and Review schema; publish llms.txt; rewrite your three highest-intent pages using the GEO-validated tactics of cited sources, statistics and quotations (Aggarwal et al., 2024). Define one productized offer with public scope and pricing. Days 61-90: build the moat. Instrument analytics to segment AI-referred traffic. Pilot exactly one internal agent use case, screened against Gartner's agent-washing criteria, demand demonstrated autonomy, tool use and multi-step planning, not a rebranded chatbot (Gartner, 2025). Design your human-premium tier and test it on the next five proposals. Success metrics: citation presence in at least two assistants, AI-referred leads tracked as a distinct segment, and one closed deal at the human-premium price point. The honest caveat: every macro number here is a prediction, and Gartner predictions have missed before. But each action above pays for itself under conventional SEO and conversion economics even if the $15 trillion never arrives, which is precisely what makes this playbook rational rather than speculative. For adjacent evidence in this pillar, see [Selling to Machine Customers: How Service Businesses Stay Discoverable to AI Agents](/blog/growth-selling-to-machine-customers) and [Agent-Readable Businesses: Structured Data, llms.txt and APIs as the Trust Layer of Agentic Commerce](/blog/growth-agent-readable-business).

FAQ

Direct answers for operators.

Is the $15 trillion agentic commerce figure a fact or a forecast?

A forecast. Gartner presented it at its IT Symposium/Xpo in October 2025, predicting AI agents will intermediate more than $15 trillion in B2B spending by 2028, with about 90% of purchases touched by agents. It is an analyst prediction about intermediation, not a measurement, and should shape preparation rather than panic. Gartner forecasts have both landed and missed historically.

Should a 5-7 figure service business care about the agentic economy before 2027?

Yes, for a defensive reason: the discovery shift is already measurable. Gartner predicted a 25% drop in traditional search volume by 2026, and peer-reviewed GEO research shows machine visibility can be deliberately improved by up to 40%. The cheap preparations, structured data, llms.txt, cited content, one productized offer, pay off under ordinary SEO economics regardless of how fast agents arrive.

What is the single cheapest first move toward agent readiness?

Audit your machine visibility: ask ChatGPT, Claude, Perplexity and Gemini the ten questions your buyers ask, and record whether your firm appears and which competitors get cited. It costs nothing, establishes a baseline, and usually reveals the gap, missing structured data, unverifiable claims, no quotable statistics, that the rest of the playbook then closes in priority order.

How do we avoid overinvesting in agentic AI hype?

Apply Gartner's own findings as a filter: more than 40% of agentic projects are predicted to be canceled by 2027, and only about 130 of thousands of vendors offer real agentic capability. Pilot one use case at a time, demand demonstrated autonomy and tool use in your own environment before contracting, and tie every deployment to a measurable business outcome with a kill date.

Joshua Agonya Pi'Rwot

Written by

Joshua Agonya Pi'Rwot

Founder, Business Growth Accelerator · Country Director, AVODA Group Uganda · EMBA

Joshua helps service-business operators turn scattered marketing into a clear path from first attention to booked call. He is Founder of Business Growth Accelerator and Country Director of AVODA Group Uganda.