WeAreBrain vs Arnia Software: full comparison for 2026
Last updated: July 2026
Quick verdict
WeAreBrain (4.3/5) edges ahead of Arnia Software (3.8/5) overall. WeAreBrain is the better choice for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model.. Arnia Software is the stronger option for companies needing deep R&D-level engineering — database engines, big data systems — with machine learning as a natural extension, rather than a pure application-layer AI consultancy.. The right choice depends on your project size, budget, and required tech stack.
WeAreBrain vs Arnia Software: head-to-head summary
| Criterion | WeAreBrain | Arnia Software |
|---|---|---|
| Founded | 2015 | 2006 |
| HQ | Netherlands (internationally distributed team) | Bucharest, Romania (secondary office in Irvine, California) |
| Team size | 60+ | ~200–500 (varies by source; three development centers) |
| Rating | 4.3 / 5 | 3.8 / 5 |
| Best for | Startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model. | Companies needing deep R&D-level engineering — database engines, big data systems — with machine learning as a natural extension, rather than a pure application-layer AI consultancy. |
| Pricing model | Dedicated team, fixed project | Fixed project, dedicated team |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, AI product tooling, Shopify/SAP Commerce Cloud integrations | Python, Database engine internals, Big data systems |
| Industries served | Transport & Logistics, Healthcare, EdTech, Retail/E-commerce | Cross-industry enterprise applications |
WeAreBrain vs Arnia Software: overview
WeAreBrain
WeAreBrain is a Netherlands-headquartered AI-native product studio founded in 2015, combining AI product development with software modernization, e-commerce integrations, and automation services. It describes itself as 'a winning team, not an agency,' with a 60+ person, 13-nationality team and an average client tenure of 3.8 years, alongside an NPS score above 80 (per company website). Named clients include SidelineSwap and clevergig, which was acquired by Visma.
Arnia Software
Arnia Software is a Bucharest, Romania R&D and engineering firm founded in 2006, with reported team size varying by source (roughly 200–500 employees) across three development centers plus a US office in Irvine, California. Its machine learning expertise grew out of original R&D work in database engines and operating systems, giving it systems-level engineering depth alongside enterprise application, big data, mobile, web, and social-platform development.
Services and capabilities: WeAreBrain vs Arnia Software
| Capability | WeAreBrain | Arnia Software |
|---|---|---|
| ML Development | ✓ | ✓ |
| AI Consulting | ✓ | ✗ |
| Computer Vision | ✗ | ✗ |
| NLP | ✗ | ✗ |
| Generative AI | ✓ | ✗ |
| MLOps | ✗ | ✗ |
| Data Engineering | ✗ | ✓ |
| Staff Augmentation | ✗ | ✓ |
Tech stack comparison: WeAreBrain vs Arnia Software
| Framework / platform | WeAreBrain | Arnia Software |
|---|---|---|
| Python | ✓ | ✓ |
| AWS | N/A | N/A |
| Microsoft Azure | N/A | N/A |
| Google Cloud | N/A | N/A |
| Kubernetes | N/A | N/A |
| PyTorch | N/A | N/A |
| LangChain | N/A | N/A |
| Databricks | N/A | N/A |
Pricing comparison: WeAreBrain vs Arnia Software
| Criterion | WeAreBrain | Arnia Software |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Dedicated team, Fixed project | Fixed project, Dedicated team, Staff augmentation |
| Rate transparency | Not public | Not public |
| Price tier | Enterprise / mid-market | Enterprise / mid-market |
Target audience comparison: WeAreBrain vs Arnia Software
| Dimension | WeAreBrain | Arnia Software |
|---|---|---|
| Best company size | Startup to mid-market | Mid-market to enterprise |
| Best industries | Transport & Logistics, Healthcare, EdTech | Cross-industry enterprise applications |
| Best use cases | AI-native product MVP development, E-commerce AI personalization | Machine learning within database and big-data engineering projects, Enterprise application development with embedded ML |
| Typical project type | Dedicated team | Fixed project |
WeAreBrain vs Arnia Software: pros and cons
| WeAreBrain | |
|---|---|
| + | 80+ NPS and 3.8-year average client tenure signal strong retention (per company website) |
| + | 13-nationality team supports multilingual, multi-market European delivery |
| + | Combines AI-native product development with broader software modernization services |
| + | Founded 2015 with a decade of continuous operation |
| - | Broader software, e-commerce, and automation service lines mean ML is one of several offerings, not the sole focus |
| - | 60+ team size is modest relative to enterprise-scale competitors on this list |
| - | Notable named clients (SidelineSwap, clevergig) are smaller-profile than some competitors' enterprise logos |
| Arnia Software | |
|---|---|
| + | R&D roots in database engines and operating systems give genuine systems-level engineering depth |
| + | Three development centers and a US office (Irvine, California) support both EU and US-facing engagements |
| + | Founded 2006 — nearly two decades of continuous operation |
| + | Broad service range from mobile and web apps to big data systems alongside ML |
| - | Reported team size varies significantly by source, ranging from roughly 238 to 500+ employees, making capacity hard to pin down precisely |
| - | Machine learning is described as part of R&D project history rather than a dedicated, named current practice area |
| - | Public case studies with named enterprise clients and outcome metrics are limited |
Who should choose WeAreBrain?
WeAreBrain is the right choice for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model..
Frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. Minimum engagement starts at Not published. Works best with clients in Transport & Logistics, Healthcare, EdTech, Retail/E-commerce.
Who should choose Arnia Software?
Arnia Software is the right choice for companies needing deep R&D-level engineering — database engines, big data systems — with machine learning as a natural extension, rather than a pure application-layer AI consultancy..
Machine learning expertise grew out of Arnia's original R&D work in database engines and operating systems, giving it lower-level systems engineering depth uncommon among application-focused AI vendors on this list.. Minimum engagement starts at Not published. Works best with clients in Cross-industry enterprise applications.
Decision matrix: WeAreBrain vs Arnia Software
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | WeAreBrain |
| You need a large dedicated team for an ongoing programme | WeAreBrain |
| Your budget is at the lower end | Compare: WeAreBrain (Not published) vs Arnia Software (Not published) |
| You need specialist depth in a specific vertical | WeAreBrain |
| You need staff augmentation or team extension | Arnia Software |
| You need consulting before committing to a build | WeAreBrain |
Use case fit: WeAreBrain vs Arnia Software
| Use case | WeAreBrain fit | Arnia Software fit | Winner |
|---|---|---|---|
| AI-native product MVP development | Strong | Limited | WeAreBrain |
| E-commerce AI personalization | Strong | Limited | WeAreBrain |
| Machine learning within database and big-data engineering projects | Limited | Strong | Arnia Software |
| Enterprise application development with embedded ML | Limited | Strong | Arnia Software |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: WeAreBrain vs Arnia Software
WeAreBrain (4.3/5) is the stronger overall choice for most Machine Learning Development projects. Frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. It is best for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model..
Arnia Software (3.8/5) is the better choice when companies needing deep R&D-level engineering — database engines, big data systems — with machine learning as a natural extension, rather than a pure application-layer AI consultancy.. If your situation matches those criteria, Arnia Software is a competitive option.
Related comparisons
WeAreBrain vs Arnia Software FAQ
Is WeAreBrain better than Arnia Software?
WeAreBrain (4.3/5) scores higher overall, but "better" depends on your use case. WeAreBrain is better for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model.. Arnia Software is better for companies needing deep R&D-level engineering — database engines, big data systems — with machine learning as a natural extension, rather than a pure application-layer AI consultancy..
How do WeAreBrain and Arnia Software differ in pricing?
WeAreBrain uses dedicated team, fixed project pricing with a minimum engagement of Not published. Arnia Software uses fixed project, dedicated team pricing with a minimum engagement of Not published. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: WeAreBrain or Arnia Software?
Arnia Software is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.
What are the main differences between WeAreBrain and Arnia Software?
WeAreBrain's primary differentiator is: frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. Arnia Software's primary differentiator is: machine learning expertise grew out of arnia's original r&d work in database engines and operating systems, giving it lower-level systems engineering depth uncommon among application-focused ai vendors on this list.. They also differ in team size (60+ vs ~200–500 (varies by source; three development centers)), minimum engagement (Not published vs Not published), and primary industries served (Transport & Logistics, Healthcare vs Cross-industry enterprise applications).
Last reviewed: July 2026. Verify all details directly with each company before making a decision.