AI Marketing × Project-Based Work
AI Marketing Agencies for Project-Based Clients (September 2026)
AI Marketing agencies with verified project-based client evidence — ranked by depth of documented work, then editorial quality.
Each listed agency documents project-based engagements on its own site or in a published case study; the model is never inferred from a service list.
Ranked AI Marketing agencies for project-based clients
Rankings updated · Newest review
OstraconAI
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#1Helsinki, Finland
Client evidence: 11 documented clients overall
Best for: Nordic marketing and sales teams that want AI tools built into HubSpot, Teams or Microsoft 365 and their own staff trained to run them.
Found
#2London, United Kingdom
Client evidence: 8 documented clients overall
Best for: UK consumer brands in retail, insurance and hospitality that want AI applied inside paid search, SEO and campaign data.
London, United Kingdom
Client evidence: 4 documented clients overall
Best for: Consumer and industrial brands that need marketing spend measured and modeled rather than an AI system built.
About this list
Project-based AI marketing, as documented here, means a scoped build dropped into an existing marketing stack. OstraconAI's Singa pipeline enriches, scores and routes inbound leads into HubSpot on n8n and Gemini, went live in week three, and cut manual lead sorting from 45 minutes a day to single-digit minutes; its Olo-apteekki web app generates campaign banners from real product images, taking a set from 20–30 minutes to near-instant. Found built Secret Sales a neural network predicting each product's 30-day sales value, rolled out on a slice of budget first and credited with 28% higher ROAS than the account's other Shopping campaigns; its project work also includes bespoke SEO and CRO test-and-learn projects. Ekimetrics is the measurement option, with marketing-mix modeling for Eurostar as its named case.
For a marketing team buying a project, the sorting question is who runs the build once the project closes. Most of these systems sit on tools you already pay for—HubSpot, n8n, Clay, Google's ad platforms—so ask who owns the workflows and accounts at handover, and who adjusts the prompts or retrains the model when the market moves. The curator notes that Found's data and AI work is credited to its sister company Braidr, that several OstraconAI headline figures are forecasts rather than measured results, and that Ekimetrics's detailed cases are anonymous; ask each for a measured result from a finished project, not a projection.
Intro by Gabor Kiss, curator · How we rank
Expert Insight
Why project-based fit matters for AI Marketing
A fixed scope protects both sides only when the acceptance criteria are written: ask for them before the rate, because a project without them becomes a retainer nobody agreed to.
The handover decides whether the project was an asset or a dependency: pipelines, evaluation sets and retraining procedures belong in the deliverables list.
The pilot-to-production gap is the main risk of project work in AI: the case studies here that describe operations and measured results are the ones that show an agency has crossed it.
Frequently asked questions
3 agencies in our directory combine verified project-based client evidence with documented AI Marketing work. The current top-ranked are OstraconAI, Found, Ekimetrics — ordered by depth of documented client evidence, then our editorial scoring (portfolio quality, credibility, completeness); placement is never paid.
Published rates across this page's agencies run €85–400 per hour (median ~€216). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size.
Every agency here documents project-based work on its own site or in a published case study, describing the engagement structure rather than a service-list claim. We never infer the model from portfolio tone, so this list only contains agencies that operate project-based engagements deliberately.