SaaS & B2B × Enterprises
Best SaaS & B2B AI Agencies for Enterprises (November 2026)
SaaS & B2B AI agencies with verified enterprise client evidence — ranked by depth of documented work, then editorial quality.
Each listed agency evidences at least 2 documented enterprise clients. Combined, the agencies below document 225 client engagements.
Ranked agencies for enterprise clients
Rankings updated · Newest review
Top 30 of 41 agencies with documented enterprise work.
allUpp
#1Vienna, Austria
Client evidence: 16 documented clients overall
Best for: Companies already on Salesforce that want Agentforce agents added to service or sales workflows at a fixed package price.
ontolux
#2Berlin, Germany
Client evidence: 13 documented clients overall
Best for: German public bodies, broadcasters and publishers that need tagging and search over large German-language text collections.
Groningen, Netherlands
Client evidence: 12 documented clients overall
Best for: Northern Dutch organizations that need a build and the team trained to run it afterwards.
OstraconAI
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#4Helsinki, 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.
Madrid, Spain
Client evidence: 11 documented clients overall
Best for: Consumer-facing brands and large operators in Spain evolving a digital product over years, with AI added into an existing workflow.
Dublin, Ireland
Client evidence: 10 documented clients overall
Best for: Consumer retail brands in Ireland and the UK putting AI to work inside paid search, product feeds and email rather than building a system.
Redkiwi
#7Rotterdam, Netherlands
Client evidence: 9 documented clients overall
Best for: Dutch consumer brands and B2B suppliers buying a website, webshop or campaign where generative AI speeds up content production.
London, United Kingdom
Client evidence: 8 documented clients overall
Best for: Pharma, research and public-sector buyers with an NLP problem on unstructured documents that has to survive review.
Berlin, Germany
Client evidence: 8 documented clients overall
Best for: Enterprises putting voice or chat in front of real customers, where a wrong answer reaches the public.
Transparity
#10London, United Kingdom
Client evidence: 8 documented clients overall
Best for: UK enterprises, charities and public bodies already on Microsoft 365 and Azure that want Copilot adopted and governed.
Found
#11London, 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.
Merixstudio
#12Poznań, Poland
Client evidence: 8 documented clients overall
Best for: Product owners modernizing a platform who want AI inside the delivery process and in selected features, not a model built from scratch.
Shift Agency
#13Frankfurt, Germany
Client evidence: 8 documented clients overall
Best for: Enterprise brands and institutions rebuilding a website, newsroom or brand platform, with AI applied to marketing and visibility.
InData Labs
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#14Vilnius, Lithuania
Client evidence: 7 documented clients overall
Best for: Product teams with a defined forecasting, fraud or analytics problem who want an established ML team on fixed-price or dedicated terms.
HolistiCRM
#15Budapest, Hungary
Client evidence: 7 documented clients overall
Best for: Banks, retailers and utilities that want a propensity or next-best-offer model on their own data, scored on a business rate.
Berlin, Germany
Client evidence: 7 documented clients overall
Best for: Product owners adding AI to an app that already has users, rather than starting from a model.
Marionete
#17London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Banks and insurers that need the data and MLOps platform under their AI built to regulated-industry standards.
Algorithma
#18Stockholm, Sweden
Client evidence: 6 documented clients overall
Best for: Nordic retailers and service businesses that want customer operations run by agents and measured weekly.
Yield Studio
#19Lyon, France
Client evidence: 6 documented clients overall
Best for: French mid-market firms adding a document-analysis or automation layer to a SaaS or internal platform they already operate.
Frankfurt, Germany
Client evidence: 6 documented clients overall
Best for: German wholesalers, manufacturers and online retailers modernizing ordering, ERP and shop systems.
Opinov8
#21London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Teams adding cloud, data or modernization engineers who want AI coding tools applied to that delivery.
Ghent, Belgium
Client evidence: 5 documented clients overall
Best for: Retail and manufacturing teams that want pricing, forecasting and assortment calls made by a model their analysts can run.
10Clouds
#23Warsaw, Poland
Client evidence: 5 documented clients overall
Best for: Banks, insurers and credit funds automating a defined back-office or sales workflow on a platform already run in production.
Geneea
#24Prague, Czech Republic
Client evidence: 5 documented clients overall
Best for: Media, banking and e-commerce platforms running high-volume, multi-market NLP on live customer content, not one-off pilots.
Flowtale
#25Copenhagen, Denmark
Client evidence: 5 documented clients overall
Best for: Logistics and transport operators automating high-volume document intake—booking requests, requisitions—into systems they already run.
Kainos
#26Belfast, United Kingdom
Client evidence: 5 documented clients overall
Best for: UK public bodies and regulated enterprises buying delivery at program scale, with AI as one workstream inside a larger build.
App4You
#27Gdańsk, Poland
Client evidence: 5 documented clients overall
Best for: Polish public institutions and smaller operators that want a fixed-scope build with the price published before the first call.
Nebuli
#28London, United Kingdom
Client evidence: 5 documented clients overall
Best for: Organizations wanting a private, self-hosted generative AI workspace over their own documents rather than a public LLM.
BySix
#29Lisbon, Portugal
Client evidence: 5 documented clients overall
Best for: Product and operations teams buying a first generative-AI agent wired into Jira, Slack, Shopify or an ATS at a fixed weekly price.
Dear Future
#30Copenhagen, Denmark
Client evidence: 4 documented clients overall
Best for: Consumer brands with first-party data already in the stack that want it turned into predictions the marketing team will actually use.
Head-to-head
About this list
When a software company buys AI at enterprise scale, the system usually ships inside a product other people pay for—which makes reliability, latency and cost-per-request part of the specification, not the retrospective. The strongest agencies here hold documented enterprise clients alongside software-industry work. Tiksom built Myaigi's multi-agent backend on LangChain and LangGraph with a Judge Agent enforcing consistency, and its wider client list runs to UNICEF and Erasmus MC. Algorithma's agent systems serve operations that software companies run at volume, DataNorth pairs delivery with the enablement programs that get internal teams productive, and Lautmaler, Hybrid Heroes and Violet AI bring product-engineering depth.
The ownership question decides most of these engagements: whose cloud account does the system live in, who tunes it in six months, and what does the release cadence look like once the agency has gone. Ask it first. An enterprise software company that cannot operate what it bought has acquired a dependency, not a capability, and the documented handovers on this page show which agencies build for the alternative.
Intro by Gabor Kiss, curator · How we rank
Expert Insight
Why SaaS & B2B experience matters
Evaluation infrastructure—The difference between a demo and a durable feature is an eval suite: test sets, regression checks on prompt changes, quality metrics tied to user outcomes. Specialists build it alongside the feature; without it, every model update is a gamble shipped straight to production
Unit-economics engineering—Per-request model costs decide whether your feature has a margin. Specialists design cost ceilings in from the start—model routing, caching, context trimming—instead of discovering at scale that the assistant costs more than the seat
Handover quality—Your engineers inherit this code. Specialists deliver documented pipelines, reproducible evals, and infrastructure your team can run; agency-shaped black boxes turn into unmaintainable dependencies the day the contract ends
Product-not-project thinking—AI features need iteration loops after launch: feedback capture, failure review, prompt and model updates. Specialists set up that loop and a sane retainer for it; project shops ship the feature and leave you with version one forever
Frequently asked questions
41 agencies in our directory combine verified enterprise client evidence with documented SaaS & B2B work. The current top-ranked are allUpp, ontolux, DataNorth AI — 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 €20–300 per hour (median ~€65). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size.
Each listed agency has at least two documented, named enterprise clients — published case studies or engagement descriptions our research actually read, with source URLs stored per client. Logo walls without published evidence carry no weight, which is what separates this list from self-declared directories.
8 of the agencies on this page document an embedded / team-extension working model. See the team-extension page for the full verified list, or check the engagement chips on individual profiles.