The intelligence layer
for accounting.
Conta Labs builds the AI agents that read, reconcile, and post journal entries — so accountants can spend their time where it matters: advising clients and growing the relationship.
Built for the operational layer of accounting.
Each agent completes a real task end-to-end — reading the document, making the entry, reconciling the line, drafting the message. Every action logged. Every decision auditable.
Document Agent
Ingests every receipt, invoice, and document your clients send — WhatsApp photos, PDFs, scraped from Portal das Finanças — understands it and stores the extracted data in your chart of accounts. No templates. No rules to maintain. Works across formats and languages out of the box.
Sotil Materiais de Construção · sent 09:42
parsed · 99.4% · stored to data lake
Reconciliation Agent
Matches bank statement lines to invoices, receipts, and supplier documents across multiple entities and currencies. Connects through PSD2 to read accounts directly; flags exceptions for the human accountant rather than guessing. The match logic is shown, not hidden.
Categorisation Agent
Learns your firm's historical posting logic, applies Portuguese tax rules (IVA, IRC, IRS) natively, and drafts journal entries ready to post into TOConline, Primavera, CentralGest or your software of choice. Every decision carries a natural-language rationale.
| Account | Debit | Credit |
|---|---|---|
| 211 · Clientes c/c | 12.500,00 | — |
| 72 · Prestação de serviços | — | 10.504,20 |
| 2433 · IVA liquidado (23%) | — | 1.995,80 |
| Total | 12.500,00 | 12.500,00 |
Client Feedback Agent
Handles the back-and-forth that eats half an accountant's day: chasing missing receipts, asking about a new vendor, confirming a category. Drafts in clear Portuguese (or English), waits for the human's approval, then sends. Closes loops without losing the relationship.
Agents that work for you, inside your stack.
96%+ accuracy
Agents are only put into production once they clear our internal accuracy bar. Your team handles exceptions, not the bulk.
Faster close
Real-time reconciliation and posting. Books that used to take three weeks close in days.
Human-in-the-loop
Nothing posts without the accountant's review. The agent drafts. The human approves.
Full audit trail
Every agent action is logged with a natural-language rationale. Always audit-ready.
A layer on top of your accounting software, not a replacement.
We don't compete with TOConline, Primavera, CentralGest or your ERP. We sit on top of them — reading documents, drafting entries, calling their APIs to post the work. Proof-of-concept in two weeks. Full integration in four.
Built for regulated work, from day one.
Your firm owns the data. Our models never train on it. Every action is auditable.
Your data, your control
Models never use your data for training. Customer data is logically segregated per firm and per entity.
European by default
Hosted in EU regions, run from Lisbon. Compliant with GDPR, AT obligations, and Portuguese accounting regulations.
Audit trail as the aesthetic
Every action by every agent has a timestamp, an input, an output, and a rationale. Inspect any decision.
We believe AI should work for accountants — so accountants can work for their clients.
Technology earns its place when it unlocks better client service. Our agents handle the operational layer end-to-end, with traceable reasoning, so the human team can spend their time where it matters.
Book a demoEngineers and operators who have built the books they're now automating.
Conta Labs is a small, deliberately senior team based in Lisbon — engineers, operators, and accountants sitting at the same table, building agents for a domain we know from the inside.
Built and scaled two unicorns from 0 to 100M+ across Iberia and LatAm in B2B SaaS and financial services. Now applying the same playbook to the operational layer of accounting.
Founder and CTO with experience building and shipping global tech products from concept to production across startups and Big Tech. Focused on turning frontier AI into useful, production-grade products for industries ready to move faster.
Lisbon, Portugal.
We start in Portuguese accounting reality — Portal das Finanças, SAF-T, IRS, IVA — and design from those constraints outward. That specificity is a feature, not a parochialism.
We're hiring senior engineers and operators.
A small team, deliberately senior. Engineers, accountants, and product designers sitting at the same table — building agents that complete real work for a regulated industry.
We are hiring engineers who would rather ship a working agent than write a paper about one. The accounting industry has been waiting for software that actually does the work. Help us be the team that delivers it.
What we're looking for
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Senior AI / ML engineers Comfortable shipping agentic systems into production — evaluation harnesses, traces, the messy real-world edges.
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Backend engineers Distributed systems, data pipelines, integrations into accounting software (TOConline, Primavera, CentralGest).
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Product designers Who can design audit trails as carefully as marketing pages. We borrow more from aerospace dashboards than chatty AI products.
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Accountants who understand tech (or want to) The domain expertise we need is rare in tech. If you've done the work and you can read a spec, we want to talk.
What it's like to work here
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Lisbon, in person We're a small team that benefits from being in the same room. Hybrid for senior individual contributors with the right reason.
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Real users from day one You ship to thousands of SMB clients running on 62W's accounting operation. Feedback is hours, not quarters.
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Engineering-led Product decisions made by people who write code. No design-by-committee, no JIRA archaeology.
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Top-of-market compensation We benchmark to the best tech companies, not to local accounting firms. Cash and equity for senior hires that respect the bar we're asking you to meet.
No formal job board yet — just write to us.
Tell us what you've built, what you're looking for, and why this. We read everything.
Questions we get a lot.
What does Conta Labs actually build?
Are you a separate company from 62W?
Do your agents replace TOConline / Primavera / CentralGest?
How autonomous are the agents?
What about data privacy?
How long does deployment take?
The intelligence layer is ready. Are you?
Book a 30-minute call. We'll show you the agents working on real documents in your firm's chart of accounts.
Book a demo