Gain Theory has been named Leader in Forrester Wave report

Gain Theory, part of WPP, has been named a Leader in a Forrester assessment of marketing measurement and optimisation services.

The research firm placed Gain Theory among the leading vendors in "The Forrester Wave: Marketing Measurement And Optimization Services, Q1 2026". The report said Gain Theory ranked highest in the Strategy category.

WPP said the Forrester report gave Gain Theory the highest possible score in 20 evaluation criteria. It also cited positive feedback from customer interviews about several executive leaders at Gain Theory.

Forrester described Gain Theory's positioning in terms of marketing measurement and business insight. "Gain Theory's distinctive vision is to empower brands to realise unmatched, quantified value from marketing and broader business insights."

Executive response

Gain Theory said the recognition was related to its approach to marketing measurement and optimisation. The company also pointed to its focus on foresight and scenario-based analysis.

"To us, Gain Theory's recognition as a Leader in Forrester's rigorous assessment of major marketing measurement and optimization providers underscores our unwavering commitment to client success. We are dedicated to empowering clients to transform our independent insights and recommendations into actionable, measurable business growth. In an uncertain world, foresight, scenario planning and war-gaming are critical. Our distinctive HiFusion platform and deep AI capabilities uniquely enable clients to navigate complexity and drive measurable business results," said Manjiry Tamhane, Global CEO, Gain Theory.

WPP linked the assessment to its wider marketing services offer. "We believe that for Gain Theory to be named a Leader by Forrester speaks volumes about their relentless innovation and WPP's commitment to truly powering our clients' success. To us, this isn't just recognition; it's a powerful acknowledgment that our clients are leveraging the world's most advanced, AI-driven marketing effectiveness solutions available today," said Cindy Rose.

Strategy scores

The Forrester report placed Gain Theory highest in the Strategy category. It listed vision, innovation, pricing flexibility, transparency, and global delivery strategy as elements within that category.

Forrester also referenced planned product and service enhancements in its assessment of innovation. It said Gain Theory "funnels significant funding into innovation with planned enhancements focused on measuring and testing new and emerging channels, in-campaign tracking, and adaptable 'war-gaming' that includes competitor behavior and cultural shifts."

Measurement services

Forrester's evaluation covered a broad range of marketing measurement and optimisation services. These included strategic marketing mix analysis, unified measurement analysis, incrementality testing, attribution modelling, marketing budget optimisation, and campaign and tactical measurement.

The assessment also covered scenario planning, client model testing and integration, and measurement of external factors. It listed data quality and taxonomy consulting, benchmarking data, and data partnerships as areas reviewed under data.

Forrester said Gain Theory uses internal and partner datasets for benchmarking and planning. It said: "Gain Theory also taps its own and WPP's data partnerships for benchmarking, scenario planning, audience measurement, and brand valuation."

Technology platform

Forrester referred to Gain Theory's technology in its profile. It said the company has "deep AI-driven creative measurement capabilities and demonstrated strength in global client service."

The report also highlighted the HiFusion platform. It said: "The interoperability of its HiFusion platform provides flexibility for simultaneous measurement of multiple KPIs via various methodologies and strong integrations with client-provided models."

Forrester also referenced Gain Theory's Marketing Impact Readiness Assessment framework. It said: "Its unique Marketing Impact Readiness Assessment (MIRA) framework provides data guidance for future measurement tests and speeds data ingest."

Client feedback

Client experience formed part of the Forrester evaluation. The report said customers valued several aspects of Gain Theory's delivery model.

Forrester said: "Customers value Gain Theory's transparency, engagement, modeling accuracy, and local modeling teams." The report also stated that Gain Theory received above-average customer feedback.

Forrester included change management consulting within its review. It said "consulting capabilities are solid across the board."

The Forrester profile of Gain Theory also addressed how its services fit different types of customers. It concluded: "Gain Theory's vision for deeper and broader marketing measurement and its flexible, modular offerings make it a good fit for a wide range oforganisations."