Best ML Development Services

Grid Dynamics vs Existek: full comparison for 2026

Last updated: July 2026

Quick verdict

Grid Dynamics (4.4/5) edges ahead of Existek (3.9/5) overall. Grid Dynamics is the better choice for fortune 1000 enterprises that need public-company financial transparency and large-scale delivery capacity for ML/AI programs.. Existek is the stronger option for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service.. The right choice depends on your project size, budget, and required tech stack.

Grid Dynamics vs Existek: head-to-head summary

Criterion Grid Dynamics Existek
Founded 2006 2012
HQ San Ramon, California, United States Bucharest, Romania
Team size 4,500+ 50–249
Rating 4.4 / 5 3.9 / 5
Best for Fortune 1000 enterprises that need public-company financial transparency and large-scale delivery capacity for ML/AI programs. Mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service.
Pricing model Time & materials, managed engagement Project-based, dedicated team
Min. engagement Not published $25,000+
Primary tech stack AWS SageMaker, Kubernetes, Apache Spark Python, TensorFlow, AWS
Industries served Retail & E-commerce, Manufacturing, Insurance, Media & Entertainment, Telecom Healthcare, Oil & Gas, Education, Business Intelligence

Grid Dynamics vs Existek: overview

Grid Dynamics

Grid Dynamics Holdings, Inc. (Nasdaq: GDYN) was founded in 2006 in Silicon Valley by Leonard Livschitz and is headquartered in San Ramon, California, with roughly 4,500–5,000 technical professionals across 19 countries. The company delivers enterprise AI/ML and data platform engineering alongside cloud-native engineering, serving Fortune 1000 clients in retail, manufacturing, insurance, wealth management, and life sciences. As a publicly traded company, Grid Dynamics carries a higher compliance and financial-transparency bar than most privately held firms in this list, at the cost of boutique-level personalization.

Existek

Existek was founded in 2012 and operates with a 50–249 person team split across Bucharest, Romania and Vinnytsia, Ukraine, delivering custom software development, dedicated team staffing, and AI development services for clients in business intelligence, healthcare, oil & gas, and education. The company has been recognized by Clutch as a top developer in both Ukraine and Romania and holds a near-perfect 4.9 rating on the platform, with hourly rates of $50–$99/hr and a minimum project size of $25,000+. Its AI services page is comparatively general, offering less publicly documented technical specificity than boutique ML specialists in this list.

Services and capabilities: Grid Dynamics vs Existek

Capability Grid Dynamics Existek
Custom ML Models
Computer Vision
NLP
MLOps
Generative AI
AI Consulting

Tech stack comparison: Grid Dynamics vs Existek

Framework / platform Grid Dynamics Existek
TensorFlow
PyTorch N/A
AWS
Azure N/A N/A
Google Cloud N/A N/A
LangChain N/A N/A
Hugging Face N/A N/A
Kubernetes N/A

Pricing comparison: Grid Dynamics vs Existek

Criterion Grid Dynamics Existek
Minimum engagement Not published $25,000+
Engagement models Dedicated team, Managed engagement, Staff augmentation Project-based, Dedicated team
Rate transparency Not public Minimum disclosed
Price tier Mid-market Mid-market

Target audience comparison: Grid Dynamics vs Existek

Dimension Grid Dynamics Existek
Best company size Startup to mid-market Startup to mid-market
Best industries Retail & E-commerce, Manufacturing, Insurance Healthcare, Oil & Gas, Education
Best use cases Fortune 1000 retailer needs an enterprise-scale ML/data platform overhaul with public-company accountability., Insurance or wealth management firm needs a vendor with SEC-level financial transparency for procurement due diligence. Mid-market company wants a Clutch-recognized offshore vendor with a $25K+ entry point for an AI-adjacent project., Oil & gas or business intelligence company needs custom software plus AI/ML from a single vendor.
Typical project type Dedicated team Project-based

Grid Dynamics vs Existek: pros and cons

Grid Dynamics
+ Publicly traded (Nasdaq: GDYN) status means audited financials and SEC disclosure are available to prospective clients — a rare transparency level in this list.
+ ~4,500 technical professionals across 19 countries gives it the delivery capacity for large, multi-workstream Fortune 1000 programs.
+ 18 years of enterprise engineering experience since 2006, well before the current AI hiring wave.
+ Combines cloud-native and AI/ML engineering under one roof, reducing multi-vendor coordination for large programs.
- At ~4,500 employees, engagements are structured around managed delivery teams rather than boutique-style founder involvement.
- Public-company overhead and scale generally mean higher minimum program sizes than smaller specialist firms.
Existek
+ 4.9 near-perfect Clutch rating with top-developer recognition in both Ukraine and Romania.
+ $25,000+ minimum project size is more accessible than large enterprise-only vendors like EPAM.
+ 12+ years of operating history (since 2012) with dual-country delivery presence.
+ Serves niche industries (oil & gas, business intelligence) less commonly covered by boutique AI specialists.
- Publicly available technical detail on Existek's specific AI/ML methodology is thinner than boutique specialists like Neurons Lab or Provectus.
- AI development is one of several service lines (custom software, staff augmentation) rather than the firm's exclusive focus.

Who should choose Grid Dynamics?

Grid Dynamics is the right choice for fortune 1000 enterprises that need public-company financial transparency and large-scale delivery capacity for ML/AI programs..

Nasdaq-listed enterprise AI engineering firm with public financial reporting and Fortune 1000 client base.. Minimum engagement starts at Not published. Works best with clients in Retail & E-commerce, Manufacturing, Insurance, Media & Entertainment, Telecom.

Who should choose Existek?

Existek is the right choice for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service..

4.9 Clutch rating with dual Ukraine/Romania Clutch top-developer recognition and a $25,000+ accessible entry point.. Minimum engagement starts at $25,000+. Works best with clients in Healthcare, Oil & Gas, Education, Business Intelligence.

Decision matrix: Grid Dynamics vs Existek

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 Grid Dynamics
Your budget is at the lower end Compare: Grid Dynamics (Not published) vs Existek ($25,000+)
You need specialist depth in a specific vertical Grid Dynamics
You need production MLOps support after model launch Grid Dynamics
You need consulting before committing to a build Existek

Use case fit: Grid Dynamics vs Existek

Use case Grid Dynamics fit Existek fit Winner
Fortune 1000 retailer needs an enterprise-scale ML/data platform overhaul with public-company accountability. Strong Limited Grid Dynamics
Insurance or wealth management firm needs a vendor with SEC-level financial transparency for procurement due diligence. Strong Limited Grid Dynamics
Mid-market company wants a Clutch-recognized offshore vendor with a $25K+ entry point for an AI-adjacent project. Limited Strong Existek
Oil & gas or business intelligence company needs custom software plus AI/ML from a single vendor. Limited Strong Existek
Fixed-scope ML build Limited Limited Both equally
Ongoing model retraining Limited Limited Both equally

Verdict: Grid Dynamics vs Existek

Grid Dynamics (4.4/5) is the stronger overall choice for most Machine Learning Development projects. Nasdaq-listed enterprise AI engineering firm with public financial reporting and Fortune 1000 client base.. It is best for fortune 1000 enterprises that need public-company financial transparency and large-scale delivery capacity for ML/AI programs..

Existek (3.9/5) is the better choice when mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service.. If your situation matches those criteria, Existek is a competitive option.

Related comparisons

Grid Dynamics vs Existek FAQ

Is Grid Dynamics better than Existek?

Grid Dynamics (4.4/5) scores higher overall, but "better" depends on your use case. Grid Dynamics is better for fortune 1000 enterprises that need public-company financial transparency and large-scale delivery capacity for ML/AI programs.. Existek is better for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service..

How do Grid Dynamics and Existek differ in pricing?

Grid Dynamics uses time & materials, managed engagement pricing with a minimum engagement of Not published. Existek uses project-based, dedicated team pricing with a minimum engagement of $25,000+. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Grid Dynamics or Existek?

Existek 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 Grid Dynamics and Existek?

Grid Dynamics's primary differentiator is: nasdaq-listed enterprise ai engineering firm with public financial reporting and fortune 1000 client base.. Existek's primary differentiator is: 4.9 clutch rating with dual ukraine/romania clutch top-developer recognition and a $25,000+ accessible entry point.. They also differ in team size (4,500+ vs 50–249), minimum engagement (Not published vs $25,000+), and primary industries served (Retail & E-commerce, Manufacturing vs Healthcare, Oil & Gas).

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