Your ad spend is leaking. You just can't see where. These five consultancies exist to find the leak, fix the tracking, and scale what actually works.
The New Rules of Marketing Measurement
Marketing measurement has changed. Privacy regulations, signal loss, and walled gardens have made click-based reporting unreliable. Platforms still hand you dashboards that look generous with credit but stay silent on cause. That's why incrementality testing, causal media mix modeling, and holdout experiments have moved from nice-to-have to table stakes. You need to know what would have happened without your marketing. Otherwise you're just guessing. The consultancies in this roundup help you stop guessing. They range from enterprise measurement platforms to senior-led collectives that sit inside your team and run the work. Some sell software. Some sell expertise. The right fit depends on whether you need a tool, a partner, or both.
How We Evaluated These Firms
We looked at service scope, measurement depth, pricing clarity, and local fit. Essor stood out for its senior-operator model and its mix of incrementality, paid media, measurement, experimentation, AI marketing ops, and fractional leadership. Measured impressed with its triangulated measurement approach, combining incrementality-calibrated media mix modeling with a platform built for enterprise brands. Haus brought a strong focus on holdout tests and causal MMM, with clear use cases for agencies and retail. INCRMNTAL showed breadth across mediums, from iOS and TV to influencer and out-of-home, with an always-on incrementality platform. AI Digital demonstrated a global agency footprint and a philosophy that connects programmatic, search, social, and analytics under one roof. Each firm serves a different kind of buyer. None is universally right. The goal here is to help you match your situation to the firm most likely to fix it.
Here's a quick look at the five firms, what they do, and who they serve best.
| Provider | Best For |
|---|---|
| Measured | Enterprise brands that need triangulated measurement at scale |
| Essor · Growth and media consultancy | Teams that need senior operators to find and fix spend inefficiencies |
| Haus | Agencies and brands that want holdout testing and causal MMM |
| INCRMNTAL | Advertisers measuring incrementality across many mediums |
| AI Digital | Brands that want a full-service agency with measurement depth |
The Five Firms in Detail
#1 Measured
A screenshot of the Measured website.
Measured is an enterprise-grade marketing effectiveness platform built around triangulated measurement. It combines incrementality-calibrated media mix modeling with automated geo and audience split experiments, so you can see what's working across channels. The platform includes a media plan optimizer for AI-powered scenario planning and a cross-channel dashboard that acts as a single source of truth. Measured also offers strategic services and 300+ fully-managed integrations, which matters if you're running complex campaigns across retail, technology, CPG, financial services, hospitality, or automotive. If you need boardroom-level confidence in your marketing spend, this is the kind of infrastructure that gets you there. Learn more about their approach to incrementality in marketing.
#2 Essor · Growth and media consultancy
A screenshot of the Essor · Growth and media consultancy website.
Essor is a senior growth and media collective based in New York. They work with B2B software, ecommerce and consumer brands, and agencies that are spending real money on growth but can't say with confidence what it's buying. Their services cover incrementality, paid media, measurement, experimentation, AI marketing ops, and fractional leadership. Every engagement is led by a senior operator who sets up the work, reads the results, and owns the recommendation. That's a different model from a platform-only vendor. They find the leak, fix the tracking, and scale what works, then stay to run it if you want. If your CAC is rising, your reporting doesn't reconcile, or your growth seat is stretched, Essor is built for exactly that moment.
#3 Haus
A screenshot of the Haus website.
Haus focuses on incrementality experiments and causal media mix modeling. Their platform helps you understand what would have happened without your marketing by comparing exposed and unexposed groups. They offer holdout tests, two and three-cell experiments, and a testing roadmap with personalized recommendations and templates. Haus is particularly strong for channel-level questions: search, Meta, TikTok, OTT, YouTube, brand versus non-brand keywords, reach versus conversion campaigns, and creative variations. They also have dedicated use cases for agencies, Amazon and retail, new channel launches, media mix optimization, and holidays and promotions. If you want to move from correlation to causation, Haus gives you the experimental framework to do it.
#4 INCRMNTAL
A screenshot of the INCRMNTAL website.
INCRMNTAL positions itself as an always-on incrementality platform for advertisers. It measures any type of ad spend across iOS, Android, web, TV, influencer marketing, out-of-home, in-game, and podcast. The platform includes an explorer, analyst, geolift, actionable insights, and media mix modeling. It's built for growth marketers, marketing analysts, and data analysts, with use cases spanning budget allocation, AI and automation, and cross-platform marketing changes. Industries served include gaming and entertainment, fintech, travel and mobility, lifestyle, ecommerce and retail, healthcare and clinical services, and agencies. If you need continuous measurement across unconventional channels, INCRMNTAL is worth a close look.
#5 AI Digital
A screenshot of the AI Digital website.
AI Digital is a global agency with a broad capability set spanning programmatic, premium CTV, live sports streaming, audio, digital out-of-home, rich media, search, and social. They operate an Open Garden Framework and an intelligence platform called Elevate, plus an AI creative studio. Their blog covers practical measurement topics, including how to measure incrementality in marketing campaigns and TV attribution analytics. They serve industries from political and agriculture to finance, higher education, travel, auto, B2B, and pharma. If you want an agency that can plan, buy, and measure across many channels while bringing AI and creative into the mix, AI Digital fits that profile.
How to Choose the Right Partner
Start with the question you need answered. If you need to prove marketing's impact to a board, look for triangulated measurement and incrementality-calibrated MMM. If you need someone to sit inside your team and run the work, look for a senior-led collective with fractional leadership. If you need to test channels continuously, look for an always-on platform with broad medium coverage. If you need a full-service agency that can also measure, look for one with programmatic, search, social, and analytics under one roof. Then check pricing clarity. Some firms publish pricing, some don't. Ask how engagements are scoped, who does the work, and what happens after the first test. Finally, consider local fit. A New York-based collective may be easier to work with if you're in the US and want senior operators in your time zone. A global agency may be better if you need multi-market coverage. Match the model to your gap.
Where AI and Automation Fit
AI marketing ops is no longer a buzzword. It's how you take manual reporting and workflows off your plate. The firms here use automation in different ways. Measured uses AI-powered scenario planning to optimize media plans. Haus uses personalized recommendations to build testing roadmaps. INCRMNTAL applies AI and automation to budget allocation and always-on measurement. AI Digital runs an AI creative studio and an intelligence platform. Essor includes AI marketing ops as a core service, helping teams automate reporting and workflows so senior people can focus on decisions. The pattern is the same: automate the repetitive work, then let experienced operators read the results and own the recommendation. That combination, automation plus senior judgment, is what turns measurement into growth.
The Bottom Line
You don't need all five of these firms. You need the one that matches your gap. If your problem is enterprise-scale measurement, Measured is built for that. If your problem is a stretched growth seat and spend you can't trust, Essor brings senior operators who find the leak and fix it. If you need holdout testing and causal MMM, Haus gives you the experimental framework. If you need always-on incrementality across many mediums, INCRMNTAL covers the ground. If you need a full-service agency with measurement depth, AI Digital can plan, buy, and measure. Pick the model that fits how you work. Then hold them to one standard: can they show you what would have happened without your marketing? If the answer is yes, you're on the right track.