Best ML Development Services

Belitsoft vs ELEKS: full comparison for 2026

Last updated: July 2026

Quick verdict

Belitsoft (3.8/5) edges ahead of ELEKS (3.7/5) overall. Belitsoft is the better choice for companies that need AI models integrated into an existing SaaS product by a firm with two decades of SaaS engineering depth.. ELEKS is the stronger option for enterprises wanting AI/ML delivery from one of the oldest continuously operating engineering firms in Central/Eastern Europe.. The right choice depends on your project size, budget, and required tech stack.

Belitsoft vs ELEKS: head-to-head summary

Criterion Belitsoft ELEKS
Founded 2004 1991
HQ Warsaw, Poland Tallinn, Estonia
Team size 400+ 2,100+
Rating 3.8 / 5 3.7 / 5
Best for Companies that need AI models integrated into an existing SaaS product by a firm with two decades of SaaS engineering depth. Enterprises wanting AI/ML delivery from one of the oldest continuously operating engineering firms in Central/Eastern Europe.
Pricing model Time & materials, dedicated team Time & materials, managed engagement
Min. engagement Not published Not published
Primary tech stack Python, .NET, AWS Python, AWS, Azure
Industries served Healthcare, FinTech, SaaS (cross-industry) Manufacturing, Healthcare, FinTech, Retail & E-commerce

Belitsoft vs ELEKS: overview

Belitsoft

Belitsoft has operated since 2004 and is headquartered in Warsaw, Poland, with more than 400 software developers, testers, project managers, and DevOps staff distributed between Poland, Latvia, and Georgia. The firm's AI/ML specialists design, train, and fine-tune models, while its software engineers integrate those models into client products; for enterprise and Fortune 500 clients, Belitsoft supplies larger teams including data engineers and MLOps engineers for deployment and monitoring. Its core strength — 20+ years of SaaS development experience — makes it a strong integration partner, though its AI-specific brand recognition is thinner than firms that were AI-native from founding.

ELEKS

ELEKS was established in 1991 and is headquartered in Tallinn, Estonia, with roughly 2,100+ employees operating from offices across the US, Canada, Germany, Ukraine, Poland, Switzerland, Japan, Croatia, the UAE, Saudi Arabia, and the UK. The firm leverages AI/ML, Big Data, IoT, cloud, cybersecurity, and UX expertise, reporting more than 1,000 successfully delivered data-driven projects over its 30+ year history, and has received a 2024 Spring Clutch Global Award plus recognition on the Global Outsourcing 100 list. As one of the oldest firms in this list, ELEKS' AI/ML practice is one of several mature service lines rather than a standalone specialty.

Services and capabilities: Belitsoft vs ELEKS

Capability Belitsoft ELEKS
Custom ML Models
Computer Vision
NLP
MLOps
Generative AI
AI Consulting

Tech stack comparison: Belitsoft vs ELEKS

Framework / platform Belitsoft ELEKS
TensorFlow N/A
PyTorch N/A N/A
AWS
Azure
Google Cloud N/A N/A
LangChain N/A N/A
Hugging Face N/A N/A
Kubernetes N/A N/A

Pricing comparison: Belitsoft vs ELEKS

Criterion Belitsoft ELEKS
Minimum engagement Not published Not published
Engagement models Dedicated team, Time & materials, Staff augmentation Managed engagement, Time & materials, Staff augmentation
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Belitsoft vs ELEKS

Dimension Belitsoft ELEKS
Best company size Startup to mid-market Startup to mid-market
Best industries Healthcare, FinTech, SaaS (cross-industry) Manufacturing, Healthcare, FinTech
Best use cases B2B SaaS company needs an AI model integrated into an existing product by a firm with deep SaaS engineering history., Enterprise or Fortune 500 client needs a scalable team including dedicated MLOps and data engineering roles. Enterprise wants AI/ML delivery from one of the longest continuously operating engineering firms in the region., Manufacturing or fintech company needs a data-driven project delivered by a firm with 1,000+ prior deliveries.
Typical project type Dedicated team Managed engagement

Belitsoft vs ELEKS: pros and cons

Belitsoft
+ 20 years of continuous SaaS development history (since 2004) gives it strong AI-into-product integration experience.
+ Previously featured in Clutch's annual Top 30 enterprise software development firms list.
+ Can scale team composition for enterprise/Fortune 500 clients, adding dedicated data engineers and MLOps engineers as needed.
+ 400+ distributed staff across Poland, Latvia, and Georgia provides meaningful delivery capacity.
- Company's core brand identity is SaaS/software development rather than AI specifically — AI/ML is an applied capability layered onto that base.
- Less publicly documented AI-specific case-study detail than firms whose primary marketing focus is AI/ML.
ELEKS
+ 33+ years of continuous operation (since 1991) is among the longest track records of any firm in this list.
+ 1,000+ successfully delivered data-driven projects gives it an extensive AI/ML/data delivery pattern library.
+ 2024 Spring Clutch Global Award and Global Outsourcing 100 listing are independently sourced recognitions.
+ 2,100+ employees across 11 countries provide broad geographic delivery coverage.
- AI/ML is one of several mature service lines (alongside Big Data, IoT, cybersecurity, UX) rather than the firm's primary identity.
- Legal HQ in Tallinn, Estonia while origin and significant delivery capacity remains tied to Lviv, Ukraine — confirm contracting entity.

Who should choose Belitsoft?

Belitsoft is the right choice for companies that need AI models integrated into an existing SaaS product by a firm with two decades of SaaS engineering depth..

20+ years of dedicated SaaS product development experience, applied specifically to AI model integration for B2B SaaS.. Minimum engagement starts at Not published. Works best with clients in Healthcare, FinTech, SaaS (cross-industry).

Who should choose ELEKS?

ELEKS is the right choice for enterprises wanting AI/ML delivery from one of the oldest continuously operating engineering firms in Central/Eastern Europe..

33+ years of operating history (since 1991) with 1,000+ delivered data-driven projects and Global Outsourcing 100 recognition.. Minimum engagement starts at Not published. Works best with clients in Manufacturing, Healthcare, FinTech, Retail & E-commerce.

Decision matrix: Belitsoft vs ELEKS

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Both offer fixed-price models
You need a large dedicated team for an ongoing programme Belitsoft
Your budget is at the lower end Compare: Belitsoft (Not published) vs ELEKS (Not published)
You need specialist depth in a specific vertical ELEKS
You need production MLOps support after model launch Belitsoft
You need consulting before committing to a build Belitsoft

Use case fit: Belitsoft vs ELEKS

Use case Belitsoft fit ELEKS fit Winner
B2B SaaS company needs an AI model integrated into an existing product by a firm with deep SaaS engineering history. Strong Limited Belitsoft
Enterprise or Fortune 500 client needs a scalable team including dedicated MLOps and data engineering roles. Strong Strong Both equally
Enterprise wants AI/ML delivery from one of the longest continuously operating engineering firms in the region. Strong Strong Both equally
Manufacturing or fintech company needs a data-driven project delivered by a firm with 1,000+ prior deliveries. Limited Strong ELEKS
Fixed-scope ML build Limited Limited Both equally
Ongoing model retraining Limited Limited Both equally

Verdict: Belitsoft vs ELEKS

Belitsoft (3.8/5) is the stronger overall choice for most Machine Learning Development projects. 20+ years of dedicated SaaS product development experience, applied specifically to AI model integration for B2B SaaS.. It is best for companies that need AI models integrated into an existing SaaS product by a firm with two decades of SaaS engineering depth..

ELEKS (3.7/5) is the better choice when enterprises wanting AI/ML delivery from one of the oldest continuously operating engineering firms in Central/Eastern Europe.. If your situation matches those criteria, ELEKS is a competitive option.

Related comparisons

Belitsoft vs ELEKS FAQ

Is Belitsoft better than ELEKS?

Belitsoft (3.8/5) scores higher overall, but "better" depends on your use case. Belitsoft is better for companies that need AI models integrated into an existing SaaS product by a firm with two decades of SaaS engineering depth.. ELEKS is better for enterprises wanting AI/ML delivery from one of the oldest continuously operating engineering firms in Central/Eastern Europe..

How do Belitsoft and ELEKS differ in pricing?

Belitsoft uses time & materials, dedicated team pricing with a minimum engagement of Not published. ELEKS uses time & materials, managed engagement 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: Belitsoft or ELEKS?

ELEKS 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 Belitsoft and ELEKS?

Belitsoft's primary differentiator is: 20+ years of dedicated saas product development experience, applied specifically to ai model integration for b2b saas.. ELEKS's primary differentiator is: 33+ years of operating history (since 1991) with 1,000+ delivered data-driven projects and global outsourcing 100 recognition.. They also differ in team size (400+ vs 2,100+), minimum engagement (Not published vs Not published), and primary industries served (Healthcare, FinTech vs Manufacturing, Healthcare).

Last reviewed: July 2026. Verify all details directly with each company before making a decision.