AI Agents × B2B Companies
AI Agents Agencies for B2B Clients (September 2026)
AI Agents agencies with verified B2B client evidence — ranked by depth of documented work, then editorial quality.
Each listed agency evidences at least 2 documented B2B clients. Combined, the agencies below document 155 client engagements.
Ranked AI Agents agencies for B2B clients
Rankings updated · Newest review
Top 30 of 36 agencies with documented B2B work.
Paris, France
Client evidence: 15 documented clients overall
Best for: Large French employers that want their own people building agents rather than a vendor owning them.
Modulai
#2Stockholm, Sweden
Client evidence: 12 documented clients overall
Best for: Product teams that need a model shipped into production, from clinical retrieval to real-time vision on constrained hardware.
Poznań, 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.
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.
Satalia
#5London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Enterprises with a scheduling, routing or workforce-allocation problem big enough to justify operations-research specialists.
Vstorm
#6Wrocław, Poland
Client evidence: 6 documented clients overall
Best for: Mid-market operators putting an agent inside a product or a clinical workflow, where output has to be validated before it ships.
London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Operational businesses with data already flowing that want a system built on it rather than a strategy deck.
Stockholm, Sweden
Client evidence: 6 documented clients overall
Best for: Nordic retailers and service businesses that want customer operations run by agents and measured weekly.
Lyon, 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.
Artefact
#10Paris, France
Client evidence: 5 documented clients overall
Best for: Large consumer and industrial groups that want AI agents adopted across a workforce, not piloted in one team.
ML6
#11Ghent, Belgium
Client evidence: 5 documented clients overall
Best for: Enterprises and public bodies putting AI into production systems that already carry real traffic.
10Clouds
#12Warsaw, 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.
Indigo Labs
#13Ljubljana, Slovenia
Client evidence: 5 documented clients overall
Best for: Product teams that want a scoped AI build with the duration, team size and budget stated before the contract.
App4You
#14Gdańsk, 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.
STX Next
#15Poznań, Poland
Client evidence: 5 documented clients overall
Best for: Python-heavy teams that need senior engineers now, with AI built into how the work is delivered and reviewed.
Alpdev
#16Ljubljana, Slovenia
Client evidence: 5 documented clients overall
Best for: Mid-market sales and support teams that want an AI system wired into the CRM, telephony or ERP they already run.
BySix
#17Lisbon, 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.
MindTitan
#18Tallinn, Estonia
Client evidence: 4 documented clients overall
Best for: Nordic and Baltic operators that want a measured ML system built end to end by the team that will hand it over.
Cluj-Napoca, Romania
Client evidence: 4 documented clients overall
Best for: Companies shipping a mobile or web product, including AI products that need everything around the model built properly.
Qemie
#20Frankfurt, Germany
Client evidence: 4 documented clients overall
Best for: Small B2B teams replacing spreadsheet-and-CRM sales admin with automated pipelines their own staff can run.
Wise Monks
#21Vilnius, Lithuania
Client evidence: 4 documented clients overall
Best for: Lithuanian mid-market operators buying a defined AI automation at a published price, with named clients to call in the same market.
7code
#22Cluj-Napoca, Romania
Client evidence: 4 documented clients overall
Best for: Founders who need a compliant retrieval-grounded product built and shipped in months, at a rate that leaves budget for the next iteration.
Faculty
#23London, United Kingdom
Client evidence: 3 documented clients overall
Best for: Enterprises and public bodies that need AI deployed under regulatory or safety scrutiny.
Flobotics
#24Warsaw, Poland
Client evidence: 3 documented clients overall
Best for: Operations teams that want automation bought against a payback number, especially in healthcare revenue cycle.
DEUS
#25Amsterdam, Netherlands
Client evidence: 3 documented clients overall
Best for: Enterprises putting voice or conversational AI in front of their own customers.
Linnify
#26Cluj-Napoca, Romania
Client evidence: 3 documented clients overall
Best for: Founders and product owners who want an AI product validated and shaped before it is built, not just engineered to a spec.
AI Pirates
#27Munich, Germany
Client evidence: 3 documented clients overall
Best for: Media and consumer brands that want AI skills built into the team, not just a system handed over.
Waterglass
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#28Vienna, Austria
Client evidence: 3 documented clients overall
Best for: Venture teams and platform businesses building an AI product from zero, with GDPR settled before the first line of code.
Madrid, Spain
Client evidence: 3 documented clients overall
Best for: Early-stage founders in Spain who need a product built quickly and will scope any real model work separately.
Twistag
#30Lisbon, Portugal
Client evidence: 2 documented clients overall
Best for: Operators with a document or workflow bottleneck that needs an agent auditable enough for finance or compliance to delegate to.
About this list
Agent systems for business operations are where the market's newest architecture meets its oldest requirement: the work has to be right. The agencies here carry verified B2B evidence alongside agent delivery. WeAreBrain's HEINEKEN Harry walks vendors through procurement onboarding. Modulai embedded a custom LLM agent in Optilogic's supply-chain design platform, giving natural-language access to the underlying models. AI Sisters ran an agent program inside ENGIE's global transformation, Algorithma's agents serve customer service and finance operations with two deployments quantified at adoption level, and Faculty, ML6 and Neurons Lab bring the register's most scrutinized delivery records to the category.
Interrogate agent claims harder than any other on this register, because the word is doing heavy marketing work in 2026. The differentiating questions: what tools can the agent call, what can it not do, and how is correctness checked before an action lands in a business system? Documented answers exist on this page—permission boundaries, review gates, evaluation runs. Where a candidate offers enthusiasm instead, the adjacent AI automation page holds firms solving the same problems with less architectural risk.
Intro by Gabor Kiss, curator · How we rank
Expert Insight
Why B2B fit matters for AI Agents
B2B AI lives inside operational systems, so integration experience is delivery experience—an agency that has shipped into an ERP or a ticketing queue has already fought the battles your project will fight.
Operational outcomes are checkable in a way marketing outcomes are not: handle time, error rate and hours removed either moved or they did not, and the strongest agencies here publish those numbers.
The internal business case matters—an agency whose case studies quantify results gives your sponsor the numbers to defend the budget with.
Frequently asked questions
36 agencies in our directory combine verified B2B client evidence with documented AI Agents work. The current top-ranked are AI Sisters, Modulai, Merixstudio — 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 €20–130 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 B2B 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.
2 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.