Icosa Software
Icosahedron · 20 faces · 30 edges · 12 vertices
Software for every side of your business.
Icosa is a software house that builds websites, custom software, WhatsApp automations and AI agents for companies of any size.
- 01Websites & landing pages
- 02Custom software
- 03MVPs for startups
- 04WhatsApp & automation
- 05Applied AI
- 06Custom AI agents
- 07Maintenance & hosting
The name
Icosa comes from icosahedron, a solid with 20 faces.
Unfold it and you get a flat sheet of 20 triangles. Each one is a line of work. Seven already have names, from websites to custom AI agents. The other thirteen are open for whatever your business needs next.
Pick a place to start.
Websites & landing pages
Fast on mobile, easy to find on Google, with a button that takes people straight to your WhatsApp.
Custom software
Dashboards, client portals, booking and integrations, built around the way your company works.
MVPs for startups
A first version of your product with just enough in it to put in front of real users and learn from them.
WhatsApp & automation
Organized customer support, automatic first replies, and WhatsApp connected to your spreadsheet, CRM or internal system.
Applied AI
Assistants that triage requests, answer common questions and extract information, with personal data handled carefully.
Custom AI agents
A kit of AI agents set up for your team, each with its own role, plugged into the tools you already use.
Maintenance & hosting
Your site and systems stay online, up to date and backed up.
How we work
From first message to launch.
- Step 01
Free assessment
Tell us what you need and we look at what's already there: your website, your Instagram and how people reach you. You get the assessment within 48 hours.
- Step 02
A 20-minute call
We walk through the assessment together and answer your questions. If it makes sense to keep going, we agree on what goes into the proposal.
- Step 03
Proposal
Scope, stages, timeline and price in writing, before you commit to anything.
- Step 04
Build
We follow the stages in the proposal, and a person on the team reviews every part before it reaches you.
- Step 05
Launch and follow-up
We launch it and stay in touch afterward. You can leave maintenance and hosting with us, too.
Made here
We build our own product too. It's called Antessala.
Antessala is a product for law firms, run as a separate line from the software house, with its own website live since November 2026. Its system, with WhatsApp, an AI assistant and a dashboard, is being built with the same tools we use on Icosa projects.
useantessala.com.br
Visit AntessalaWho's behind it
A small team, with no middlemen.
Icosa was founded in Londrina. The people you talk to about your project are the ones building it, and nothing goes live without a review.
FAQ
What people usually ask before we start.
What's in the free assessment?
We look at what you already have: your website, your Instagram and the path a customer takes to reach you. Within 48 hours we send back what we'd change first and why. It's free, and you're not signing up for anything.
Do I need a website already?
No. If you don't have one, the assessment looks at your Instagram, your WhatsApp and whatever else is out there. We also work with people starting from scratch, like a startup building its first MVP.
How long does a project take?
It depends on the size. A landing page is done well before a system with several integrations. The proposal gives a timeline for each stage before you decide.
How much does it cost?
Price depends on what the project needs, so it comes in the proposal, after the assessment and the call. You'll know the number before you commit to anything.
Where are you based?
In Londrina, in southern Brazil. We can meet in person around Londrina and Maringá. Outside that region, we work remotely, over video calls and messages.
What happens after launch?
We stay in touch after the project goes live. If you want, Icosa can also handle maintenance and hosting, keeping your site or system online, up to date and backed up.
Contact
Start with a free assessment.
Tell us what you need. Within 48 hours you get the assessment, and then we set up a 20-minute call.