The 2027 Marketing Stack: What Earns Budget and What Gets Cut

The 2026 martech census grew by 0.79 percent while nearly 3,000 products entered or left it. That market count does not tell you how large your company's stack is or what deserves renewal.

This is the sixth and final piece in the 2027 CMO series. Five posts covered the budget trap, agents as customers, search measurement, personalization after the cookie reversal, and the title fragmenting under an expanding mandate. This one closes the series on the question every one of those posts was really circling: what survives the next budget review, and why.

Peak martech is not the same thing as a smaller stack

Chiefmartec and MartechTribe's 2026 State of Martech report, published May 5, 2026, counted 15,505 marketing technology products. That is up from 15,384 the year before, a 0.79 percent increase, the flattest year in the landscape's history. Scott Brinker calls it peak martech, maybe.

The flat headline hides real motion underneath it. 1,488 products were added in the same year. 1,367 were removed. Net growth of 121 products is the result of nearly 3,000 products moving in either direction. The stack is not settling. It is churning in place, at a pace almost identical to the churn out, which is a very different fact than "the stack is shrinking."

The census measures available products. It does not measure customer purchases, replacement rates, or stack size. Audit your own contracts and use before describing consolidation.

The number everyone cites as current is not current

Gartner's August 23, 2023 release reports 33 percent average martech-capability utilization among 405 marketing leaders surveyed in May and June 2023, compared with 42 percent in 2022 and 58 percent in 2020. Those are dated survey findings. I did not find a newer comparable public figure in this review.

A missing newer public benchmark does not prove organizations stopped measuring. Use the dated survey to frame an internal audit, not as your company's current utilization rate.

Survey maturity is another measure

BCG's 2026 survey of 300 CMOs, plus 50 structured interviews, reports 96 percent claiming significant end-to-end AI change, 42 percent using generative AI for discrete human-assisted tasks, 32 percent in its Leaders category, and 8 percent running fully autonomous multi-agent campaigns. These are survey categories, not metered outcome results.

Fully autonomous campaigns are one deployment pattern, not the only definition of useful or mature AI. Compare the workflow's actual adoption, quality, business value, and control needs rather than treating 8 percent as the only group doing valid work.

Separate a budget forecast from measured returns

Forrester's 2026 B2C marketing predictions, published October 28, 2025, forecast marketers cutting display ad budgets by 30 percent as attention keeps leaving the open web, with the money redirected to connected TV, streaming audio, and social video. Forrester's Chief Research Officer, Sharyn Leaver, framed it as rising consumer expectations meeting fading tolerance for surface-level marketing.

Self-serve tools lower some access barriers. Vibe lists a $50 daily minimum, while Roku lists a $500 starting campaign budget. Disney's Hulu Ad Manager material describes a $500 campaign minimum. Confirm the current product and terms before purchase. Platform reporting can show delivery and attributed outcomes; it does not independently prove incremental sales.

Forrester's prediction does not establish that the reallocation already occurred or why every buyer made it. Evaluate a CTV test against a defined outcome and suitable comparison.

What actually earns a line in the 2027 budget

A vendor census, a utilization survey, and an AI-maturity survey answer different questions. None can decide which contract your team should renew without evidence from the workflow it supports.

For each renewal, inspect adoption, cost, quality, business value, and necessary risk or control functions. The AI-budget article proposes metering a bounded workflow and testing its review gate. A security or compliance tool may earn its place without a meaningful cost-per-marketing-output measure.

Give the renewal decision a named owner and access to the relevant evidence, including dependencies other teams control. The CMO-role article covers authority and shared responsibilities. Keep unresolved requirements visible before cutting a tool other work depends on.

The series, complete

Six pieces on marketing leadership heading into 2027:

The AI Budget Trap: the readiness gap behind the 15.3 percent, and how to fund AI without writing it off.
Marketing to Machines: when AI agents become the customer.
AI Search Traffic: What Queries, Clicks and Pipeline Can Tell You: queries, clicks, observed referrals, and commercial outcomes.
Personalization After the Cookie Reversal: first-party or bust.
The Last CMO: the fragmenting title and the expanding mandate.
The 2027 Marketing Stack: what earns budget and what gets cut. This piece.

Use the completed CMO series as a planning map. For the stack, start with the next actual renewal and the workflow it serves.

Frequently asked questions

Is the martech stack actually shrinking in 2027?

The 2026 product census grew slightly, with 1,488 additions and 1,367 removals. It counts available products, not customer stack size or purchases, and it cannot establish a 2027 contraction at your company.

What percentage of martech capability do companies actually use?

Gartner reported an average 33 percent in its May/June 2023 survey of 405 marketing leaders, versus 42 percent in 2022 and 58 percent in 2020. A newer comparable public figure was not found in this review. That is not evidence that nobody remeasured; audit your own current use.

Is agentic AI in marketing actually being adopted, or is it overstated?

BCG reports different adoption and maturity categories in its 2026 survey. The 8 percent fully autonomous campaign group is not the only possible form of mature AI, and survey answers are not an outcome audit.

Why is CTV advertising budget increasing while display advertising is being cut?

Forrester forecast a 30 percent display-budget reduction with spending shifting toward CTV, streaming audio, and social video. That is a forecast, not proof the shift occurred. Self-serve minimum budgets make tests more accessible, but attributed platform outcomes do not independently prove incremental sales.

What should a marketing leader cut from their stack in 2027?

Review current adoption, cost, quality, business value, dependencies, and required risk/control functions. Cut or replace what fails the relevant test for its job. A vendor census or a universal cost-per-output rule cannot decide every renewal.

Sources

Market census: chiefmartec/MartechTribe 2026 report. Dated utilization source: Gartner, August 23, 2023. Survey categories: BCG's 2026 research. Budget forecast: Forrester, October 28, 2025. Platform minimums are linked beside their claims above, with each product's terms requiring confirmation.

About the author

Jeff Brokaw is a CMO and Certified Chief AI Officer who builds AI workflows, measurement systems, and the commercial operations around them.