Our industry experts identified the top-performing Eastern European software development companies developing cutting-edge solutions that generate business growth. Filter listings by size, reviews and cost to choose the best agency for your brand.

Best Software Developers in Eastern Europe

2 Companies-Rankings updated: October 18, 2026
Eastern Europe

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Eastern Europe Software Development × Fashion × $50,000 & Up ×Clear Filters
  • Your product engineering ally.

    Rebbix proves that results-oriented outsourcing without bullshit and sugar coating is possible.We provide highly effective engineering teams as a service. Since 2012, weve been helping online marketplaces scale to different markets, transform from classifieds to transactional, launch, pivot, and find...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • UI/UX Design
    • IoT
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    50 - 99
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    4 Projects Listed

    Rebbix Services

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • UI/UX Design
    • IoT
    • Software Testing
    • DevOps Consulting
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • OLX Group
    • Fixly
    • Day.io
    • Dreamlines
    • modnaKasta
    • Belvilla
    • Mozilla
    • MDC Indústria de Containers Inteligêntes
    • Investing
    Data sourced from the agency's DesignRush profile

    Rebbix Reviews & Testimonials

    • Ivan Yarych
      Ivan Yarych Review from Google
      5.0★

      Ivan Yarych's Review Sourced from Google

      A very comfortable company to work for - thanks to the people who work here and the well-thought-out workspace.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Engineers private LLM systems, sovereign AI deployments, and agentic architectures for enterprises

    Tensorsoft is an AI-first software development company helping growing businesses build scalable, intelligent, and future-ready digital solutions. We specialize in designing and developing custom software, mobile applications, and AI-powered platforms that solve real business problems and accelerate growth...

    Top Services:

    • AI Development
    • Software Development
    • Blockchain
    • IoT
    • Mobile App Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up

    TensorSoft.AI Services

    • AI Development
    • Software Development
    • Blockchain
    • IoT
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • PayTM
    • Astrotalk
    • Hyperiux
    Data sourced from the agency's DesignRush profile

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
128,514+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
48%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
2

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.