Top Tech Startups in Rio de Janeiro, Brazil in 2026

LILT is a language translation services and technology company. We're building the next generation of localization, making it possible for every organization to communicate with their customers in the language of their choice through LILT's high-quality, scalable, and affordable translation services. We recruit the world's best human translators and equip them with our software, allowing them to translate better and faster than ever. By combining human expertise and machine efficiency in a complete enterprise localization solution, we can deliver technology-enabled translation services to our customers. Lilt is backed by some of the world's leading investors including Sequoia Capital, Intel Capital, and Redpoint. Our customers include some of the largest Fortune 500 companies in the world who rely on Lilt every day to provide more personal customer experiences in 300+ languages. Our team is headquartered in the Bay Area with additional hubs in Indianapolis, Washington DC, Berlin, Dublin, and the UK.

Constructor.io is the only search and product discovery platform tailor-made for enterprise eCommerce where conversions matter. Constructor's cloud-based solutions use natural language processing, machine learning-enhanced results ranking, and collaborative personalization to deliver powerful user experiences across all facets of product discovery -- from search to browse, recommendations, and autosuggest. We optimize revenue before relevance. This has allowed us to generate consistent $10M+ lifts for our customers, which include some of the biggest brands in retail like Sephora, Backcountry, Tommy John, Lego and Bonobos. Constructor is a U.S.-based company that was founded in 2015 by Eli Finkelshteyn and Dan McCormick.

Our blockchain-enabled platform allows you to unlock the massive value locked away in your existing reputations. You can link any of your websites, for example Airbnb for your guest score or Upwork for your reviews as a gig worker. You are empowered to reveal these verified reputations, over and over again, instantly proving you are trustworthy as part of any application or signup process, for example to secure a tenancy agreement, a loan, or a job as an Upworker. We’ve built Reputationaire on a blockchain giving you ownership, security, privacy and control. Via your private trust vault, you and only you, have ownership of not only your data but more importantly the reputation that you've invested time carefully building. And you'll be able to take your reputation with you between services, so you'll never have to start from zero stars when joining a new service. We help overcome negative bias and lack of trust with the option to remain anonymous yet trusted.

At pubGENIUS we build software that helps great ideas become real products. We’re a US-based development company founded by a former Microsoft engineer, and we’ve been remote since day one. Our team is fully distributed across 10 countries from the U.S. to Europe, Asia, and Africa and we believe that where you live should never limit where you can build. What sets us apart? Our standards: -We value deep knowledge, strong engineering skills, and clear communication. Our hiring process is intentionally tough we select just 1 out of every 1,200 applicants to make sure we build a team that can consistently deliver great work, fast. What unites us is our passion for technology, our love for clean code, and our commitment to helping startups bring their visions to life. Since 2018, we’ve worked on 80+ projects, supported founders from day zero, and helped raise over $15 million in funding for early-stage startups. Whether you’re building your MVP or scaling your product, we’re here to make it happen with speed, quality, and the care of a real partner. What We Do: - We have a solid and proven track record building: - Web applications:SaaS platforms, e-commerce, healthcare, fintech, e-learning, CRMs, and more. - Mobile apps: high-performing apps on iOS and Android using React Native (plus native integrations). - Fractional CTO: Strategic support to help you choose the right tech stack, set up scalable architecture, and move faster without hiring full-time. Who We Work With: Whether you're in healthcare, e-commerce, education, AI, fintech, or something entirely new, our sharp-minded engineers can tackle any complexity. We don’t limit ourselves by industry we’re here to solve real problems with clean, scalable code. How We Think: We’re trying staying ahead. Every decision we make from architecture to stack selection is designed to ensure that the products we build will stand the test of time and evolve with your business.

We help our clients with the first part of the sales process by finding contacts and reaching out to their ideal customer profiles to bring new opportunities into the top of their sales funnel.

Siena AI is a developer of an autonomous chat platform that aims to transform the way it runs and interacts with consumers by combining human empathy and intelligent automation. The platform provides capabilities such as product information, order tracking, address changes, returns and product exchanges, subscription and retention management, allowing firms to conduct customer care and social media interactions autonomously.

The current immigration system is a gatekeeping bureaucracy optimized for inertia, not efficiency. We will productize immigration, turning high-stakes legal navigation into an end-to-end service that is 10x better than law firms.

Briidge.one, builds applied AI into how professional firms actually operate, not as another bolt on subscription but as systems grounded in a firm's own record, running inside the workflows people already use and owned outright once we hand over the keys. Another AI subscription doesn't change a firm. AI changes a firm when it runs inside the actual work, grounded in the firm's own data. Most professional firms, MSPs, private equity, investment firms, law firms, real estate, other professional services carry client relationships and institutional knowledge scattered across 5-10, sometimes 15 disconnected tools. Hours leak, records fragment and decisions wait on someone's memory instead of on data that should already be there. How we work We're a company, not a subscription. Every engagement runs through five stages: 1.Diagnose- an audit of how the firm actually operates, run by the people who will build the solution 2.Design- a roadmap naming which workflows, in what order, and what each is worth 3.Build- AI grounded in the firm's record, shaped to the workflow rather than a template 4.Integrate- connected to the tools the firm already runs, so one record moves instead of being retyped between systems 5.Improve- iteration after handover, sized to what's at stake. We build on the platforms professional firms already rely on Atera, ConnectWise, NinjaOne, HaloPSA, Datto, Autotask, DealCloud, Affinity, Datasite, Intralinks, Carta, PitchBook, Clio, iManage, NetDocuments, DocuSign, Yardi and MRI rather than asking firms to rip out what already works. What we put our name on: No outside logos to borrow. Clients own the code, the schema and the data outright with documentation complete enough for another team to take over. No lock in, nothing trained on a client's record and an exit built into every engagement from day one. We're building the team that will define what applied AI looks like for the firms that run the professional world.