Generative AI Development: 4 global agencies to consider
Four global Generative AI Development agencies: EPAM, SoftServe, Quantiphi, Thoughtworks. Sources linked; the order is not a ranking.
Providers shortlisted for LLM applications and agents.
| Agency | HQ | Best for |
|---|---|---|
| EPAM | Newtown, Pennsylvania, USA (third-party sources) | Production GenAI applications within complex enterprise systems. |
| SoftServe | Austin, Texas, USA; engineering roots in Lviv, Ukraine | Custom GenAI products requiring cloud deployment and software integration. |
| Quantiphi | Marlborough, Massachusetts, USA (third-party) | Knowledge assistants and industry-specific GenAI workflows. |
| Thoughtworks | Chicago, USA (founded there, per its site) | GenAI and agentic applications that must work within existing business systems. |
Shortlisted
EPAM
Best for: Production GenAI applications within complex enterprise systems.
Combines generative AI development with enterprise software engineering, platform integration and AI platform services.
In this category:
- Production GenAI applications inside complex enterprise systems
- AI platform services and platform integration
HQNewtown, Pennsylvania, USA (third-party sources)
Founded1993 (third-party sources)
TeamAbout 62,850 people in 55+ countries (end of 2025, third-party sources)
Named clientsNot stated on pages we could read
Partners & badgesNot stated
Services
Best at
- Production GenAI applications inside complex enterprise systems
- AI platform services and platform integration
Also offers
- Data and AI services: modernization, platforms, decision intelligence
- Digital experience and design
- Ongoing operations and support
Source: capability pageFacts from the company’s own website and public sources, checked 16 Oct 2026. Not a ranking.
Shortlisted
SoftServe
Best for: Custom GenAI products requiring cloud deployment and software integration.
Dedicated GenAI offering supported by cloud AI and NVIDIA technologies, alongside product engineering.
In this category:
- Dedicated GenAI offering with cloud AI and NVIDIA technologies
- Custom GenAI products alongside product engineering
HQAustin, Texas, USA; engineering roots in Lviv, Ukraine
Founded1993
TeamAbout 10,000 people; 54 offices in 17 countries (third-party, 2026)
Named clientsMontblanc, Ensight, Quavo, Zenoss
Partners & badgesAWS Premier Tier Partner; NVIDIA Elite Partner; Google Cloud Premier Services Partner
Services
Best at
- Dedicated GenAI offering with cloud AI and NVIDIA technologies
- Custom GenAI products alongside product engineering
Also offers
- DevOps and platform engineering
- FinOps
- IoT, robotics and XR
Source: capability pageFacts from the company’s own website and public sources, checked 16 Oct 2026. Not a ranking.
Shortlisted
Quantiphi
Best for: Knowledge assistants and industry-specific GenAI workflows.
Dedicated GenAI services and proprietary baioniq platform for enterprise knowledge work.
In this category:
- Dedicated GenAI services and the baioniq platform
- Knowledge assistants and industry-specific workflows
HQMarlborough, Massachusetts, USA (third-party)
Founded2013
TeamAbout 3,500-4,000 (third-party)
Named clientsElevate, Sullivan County, Illinois Tech and others in testimonials
Partners & badgesAWS Business Value Realization Competency (June 2026); Google Cloud Partner of the Year awards (April 2026); partners incl. AWS, Azure, Google Cloud, NVIDIA, Snowflake
Services
What stands out
- Cloud partner awards listed on its site (AWS, Google Cloud)
- Analyst recognition from Gartner, ISG, IDC and Everest (per its site)
- Own products: baioniq and Dociphi
Research before choosing
- Headcount differs by source
- Analyst rankings are self-reported; verify with the analysts
- Pricing not published
Source: capability pageFacts from the company’s own website and public sources, checked 16 Oct 2026. Not a ranking.
Shortlisted
Thoughtworks
Best for: GenAI and agentic applications that must work within existing business systems.
Enterprise AI practice connects business context, data foundations, engineering and operational reliability.
In this category:
- Enterprise AI connecting business context, data foundations and engineering
- GenAI and agentic applications that fit existing business systems
HQChicago, USA (founded there, per its site)
Founded1993
Team10,000+ people; 47 offices in 18 countries
Named clientsNestle Brazil (named on its site)
Partners & badgesMicrosoft, AWS, Google Cloud, Databricks and Snowflake partner; AWS Global Partner of the Year for data and analytics (2025)
Services
Best at
- Enterprise AI connecting business context, data foundations and engineering
- GenAI and agentic applications that fit existing business systems
Also offers
- Data engineering and analytics
- Product and experience design
- AI/works and Agent/works platforms
- Continuous delivery and engineering practice improvement
Source: capability pageFacts from the company’s own website and public sources, checked 16 Oct 2026. Not a ranking.
How this shortlist was made: agencies were chosen for relevant public work, depth in the category and coverage across the project lifecycle, based on public evidence, mainly provider sources. Team quality and comparable client references still need checking before selection. See How We Choose.
How to choose
- Ask how they evaluate answers and handle hallucinations.
- Check security, data privacy and model-provider choices.
- Clarify who owns prompts, tooling and fine-tuned assets.
- Request examples running in production.
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