Independent company
fsk.tax
The Brazilian tax-intelligence platform.
fsk.technology
We build software products — platforms, AI agents, and data products — and license them to the companies and partners who operate them. Priced by outcome — not by the hour.
Built on a trusted stack
Products - Built by FSK.
Whole products, built end to end. When one matures, it leaves home — the proof stays here.
In construction
Legal OS 365
Microsoft 365 as the law firm’s operating system.
In construction
fsk.marketing
Google Ads, run by conversation.
All products
fsk.[next] — more products, AI-native by default.
Services - Four engines. One contract.
Products we build, licenses we grant and govern, deployments we deliver, operations our licensed partners run — each engine feeds the next.
Software
Apps, agents, platforms, and data products — built end to end. fsk.tax was built here; Legal OS 365 and fsk.marketing are being built now.
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Managed Platform
FSK operates the platforms it licenses — hosting, sustaining, compliance of the product itself. Day-to-day operations are run by licensed partners, in their own name.
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Licensing
FSK platforms and data products under license — metered by the platform — plus Microsoft, Google, Vanta, and xOne, sold, provisioned, and governed.
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Deployment
Fixed-scope deployment: integration, data migration, enablement, and handover to whoever operates — an SLA on the outcome, not on hours.
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How we work - Enter small. Grow by result.
Start with a product. Grow into a license. The platform measures the rest.
01
Product
Software subscribed by consumption — per company, per process, per person.
02
License
The platform licensed to your firm or venture — a monthly minimum plus a share of enabled revenue, metered by the platform itself.
03
Deployment
Fixed scope: integration, data migration, enablement — and handover to whoever operates.
04
Operation
Licensed partners run the day-to-day in their own name; FSK runs the platform itself.
Who we serve
Growing companies and the mid-market through the products; law firms, accounting firms, and consultancies as licensed operators.
Compliance
SOC 2 · ISO 27001 · LGPD. Compliance built into the platforms we license — audit-ready by design.
Talk to FSK.
Our offices
- São Paulo
JK Iguatemi
Av. Pres. Juscelino Kubitschek, 2041
Vila Olímpia, São Paulo - SP, 04543-011
Brazil - Campinas
Shopping Galleria - Plaza, Térreo
Av. José Bonifácio Coutinho Nogueira, 150
Jardim Madalena, Campinas - SP, 13091-611
Brazil - Barueri
Castelo Branco Office Park - Jacarandá
Av. Marcos Penteado de Ulhoa Rodrigues, 939
Tamboré, Barueri, 06460-040
Brazil