4GLArgentina OÜ · Tallinn, Estonia
Code that Moves
Business Forward
We build software that solves real problems — from custom applications to database systems and technical consultation. Registered in the EU, serving business clients worldwide.
Get in TouchOur Services
We offer a focused range of computer programming services to business clients.
Custom Software Development
We design and build bespoke software systems aligned with your specific business processes and goals. Each solution is built from requirements rather than adapted from a template.
Learn more →Web & Application Development
From single-page applications to complex multi-tier web platforms, we build web and mobile-responsive applications that perform reliably at scale.
Learn more →Database Design & Development
We design relational and non-relational database schemas, optimise query performance, and implement data models that keep your data consistent and accessible.
Learn more →Software Architecture & Design
We plan system architecture before a line of code is written — component boundaries, integration patterns, and data flows that your team can build and maintain confidently.
Learn more →Code Review & Quality Assurance
We review existing codebases for correctness, maintainability and security, delivering detailed findings alongside actionable recommendations for improvement.
Learn more →Technical Consultation
We advise on technology choices, development practices and project planning — helping you make informed decisions before committing resources to a build.
Learn more →How We Work
A clear, collaborative process from first contact to delivered software.
Brief
You describe your project, goals and constraints. We ask the questions needed to fully understand the scope before we propose anything.
Proposal
We prepare a written proposal covering the approach, timeline and deliverables. Nothing is started until we agree on what will be built.
Development
Work proceeds in agreed stages with regular progress updates. You can review and give feedback at every milestone.
Delivery
We hand over the finished software with documentation, source code and a walkthrough session so your team is fully equipped to operate it.
Why 4GLArgentina OÜ
EU-Registered Company
4GLArgentina OÜ is registered in Estonia (Reg. 17399354, VAT EE102939600) and operates under Estonian and EU law, providing clear legal identity for every engagement.
Transparent Process
Scope, timeline and deliverables are agreed in writing before work starts. You receive regular progress updates and retain full ownership of all code produced.
Business Focus
We work exclusively with business clients. Our experience is in projects where reliability, maintainability and long-term operation matter more than quick prototypes.
Independent Company
4GLArgentina OÜ is an independent company and is not affiliated with, endorsed by, or connected to any government authority, software vendor, or other organisation.
Frequently Asked Questions
We work with businesses of varying sizes across industries where custom software is needed — from early-stage companies building their first product to established organisations replacing legacy systems. We do not take on consumer-facing projects or work with private individuals.
4GLArgentina OÜ is registered in Tallinn, Estonia (EU). We are set up to work with business clients regardless of their location, and all project communication can be conducted remotely. Contracts are governed by Estonian law.
Start by sending us a brief description of your project through the contact form or by email. We will follow up with clarifying questions and, once we have a clear picture of the scope, provide a written proposal for your review.
Ownership of all source code produced for a project is transferred to the client upon completion and final payment, as specified in the written agreement. We do not retain rights to reuse client-specific code in other projects.
Post-delivery support is available and can be agreed as part of the project scope or under a separate maintenance arrangement. The terms, response times and coverage are defined in writing before any support begins.
We select technology based on the requirements of each project rather than a fixed preferred stack. During the proposal phase we discuss options, trade-offs and your team's existing knowledge so that the chosen technologies are appropriate for the project's lifetime.
Payment terms are agreed in the written proposal before work begins. For project-based work, this typically involves milestone payments. For advisory and review work, terms are agreed on a per-engagement basis. All invoicing is in accordance with Estonian VAT requirements.
Get in Touch
Send us a brief description of your project and we will respond within two business days.