# Best AI Agencies for B2B Companies in Lisbon

> 4 agencies. Top-ranked: DareData, BySix, Twistag.

Canonical page: https://www.aiagencies.eu/for/b2b/lisbon
Generated: 2026-09-17 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold.

## Ranked roster
1. **DareData** — Lisbon, Portugal · €45-85/hr (directory-listed) · team 50-249 · founded 2019 · services: AI Development, AI Consulting, Generative AI · 10 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/daredata
2. **BySix** — Lisbon, Portugal · rate not published · team 50-249 · services: AI Agents, Generative AI, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/bysix
3. **Twistag** — Lisbon, Portugal · €45-85/hr (directory-listed) · team 10-49 · founded 2016 · services: AI Agents, AI Development, AI Automation · 2 documented client engagements with source URLs · reviewed 2026-09-09 · https://www.aiagencies.eu/agency/twistag
4. **Altar.io** — Lisbon, Portugal · rate not published · team 10-49 · founded 2015 · services: AI Development, AI Consulting, Generative AI · 2 documented client engagements with source URLs · reviewed 2026-09-09 · https://www.aiagencies.eu/agency/altar-io

## Compared head-to-head
Curated comparison pages (published rates, team size, coverage, projected 12-week engagement cost, and the curator's verdict on both sides — pairings are never sold):
- Altar.io vs DareData: https://www.aiagencies.eu/compare/altar-io-vs-daredata
- Altar.io vs Twistag: https://www.aiagencies.eu/compare/altar-io-vs-twistag
- DareData vs Twistag: https://www.aiagencies.eu/compare/daredata-vs-twistag

## About this market
The strongest thing about this page is that its evidence is checkable, and the second strongest is that the four firms measure different things. Twistag publishes the mechanism: an accounts-payable agent at the manufacturer Aralab where Claude reads any supplier PDF and deterministic code independently recalculates every line against the purchase order, with per-invoice cost traced in real time. DareData publishes the volume, running roughly two thirds of a telco's supplier invoices end to end. bysix publishes the turnaround, including a 96 percent cut in listing time for an e-commerce client. Altar.io publishes the client's outcome instead—funding raised, awards won, headcount grown—which tells you about the product but not about the engineering.

For a B2B buyer that difference is the shortlist. A mechanism you can inspect survives an audit; a volume figure proves the thing runs at scale; a funding round proves neither. Ask for whichever your own risk requires, and ask it specifically, because all four will answer warmly and only some of the answers will be about the system. Then ask what the running cost per transaction is—one firm on this page makes that visible by design, which is a reasonable thing to expect from the others.

## Questions buyers ask

### How many AI agencies work with B2B in Lisbon?
4 agencies in our directory combine verified B2B client evidence with a Lisbon base. The current top-ranked are DareData, BySix, Twistag — ordered by depth of documented client evidence, then our editorial scoring (portfolio quality, credibility, completeness); placement is never paid.

### How much does an AI agency cost in Lisbon?
Published rates across this page's agencies run €45–85 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.

### How is B2B experience verified on this page?
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.

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Source: AIAgencies.eu — the curated register of European AI agencies. Rate provenance: "agency-confirmed" = disclosed via submission or claimed profile; "directory-listed" = Clutch or two agreeing B2B directories (lone unverified sources are never written). Full method: https://www.aiagencies.eu/methodology · Rate index: https://www.aiagencies.eu/rates