Best AI Staffing Agencies

Xenoss vs ScienceSoft: full comparison for 2026

Quick verdict

Xenoss (4.3/5) edges ahead of ScienceSoft (4.0/5) overall. Xenoss is the better choice for ad-tech and high-volume data teams. ScienceSoft is the stronger option for regulated industries hiring experienced data scientists. The right choice depends on your project size, budget, and required tech stack.

Xenoss vs ScienceSoft: head-to-head summary

Criterion Xenoss ScienceSoft
Founded 2013 1989
HQ New York, USA McKinney, Texas, USA
Team size 50–249 750+
Rating 4.3 / 5 4.0 / 5
Primary differentiator Data engineers with ad-tech throughput experience Senior data scientists with a published hiring timeline
Pricing model Time and materials; staff augmentation; rates on request Time and materials; rates sent with CVs
Min. engagement Not disclosed Not disclosed
Primary tech stack Python, Apache Spark, Kafka Python, R, Azure ML
Industries served Ad tech, Media, Fintech, Retail and e-commerce Healthcare, Manufacturing, Fintech, Retail

Xenoss vs ScienceSoft: overview

Xenoss

Xenoss was founded in 2013 by ad-tech veterans led by CEO Dmitry Sverdlik and is based in New York, with offices in London and Kyiv. It describes itself as a specialized AI and data-engineering company, and Clutch places it in the 50–249 employee band. Client reviews describe staff augmentation in practice: one London ad-tech client hired Xenoss after failing to find engineers locally, and Xenoss sourced candidates from Ukraine and integrated them into the in-house team. Its background in high-throughput ad-tech systems shows in its data-engineering work.

ScienceSoft

ScienceSoft dates its IT work to 1989 and is headquartered in McKinney, Texas, with representative offices in the UAE, Saudi Arabia, Europe and Mexico. Its staff-augmentation pool covers more than 750 professionals, including data scientists with 7–20 years of experience. The company says it sends CVs with rates within 24 hours, arranges interviews in two to four days and has people starting within one to two weeks (per company website; independently unverifiable).

Services and capabilities: Xenoss vs ScienceSoft

Capability Xenoss ScienceSoft
LLM / GenAI engineers ✗ ✗
MLOps & deployment ✓ ✗
Computer vision ✗ ✗
Data engineering ✓ ✓
AI agent development ✗ ✗
Fractional / part-time experts ✗ ✗
Risk-free trial period ✗ ✗
Nearshore time-zone overlap ✗ ✗

Tech stack comparison: Xenoss vs ScienceSoft

Framework / platform Xenoss ScienceSoft
PyTorch N/A N/A
TensorFlow N/A N/A
LangChain N/A N/A
Hugging Face N/A N/A
OpenAI N/A N/A
AWS SageMaker N/A ✓
Azure ML N/A ✓
Databricks ✓ N/A
MLflow N/A N/A
Kubernetes ✓ N/A

Pricing comparison: Xenoss vs ScienceSoft

Criterion Xenoss ScienceSoft
Minimum engagement Not disclosed Not disclosed
Engagement models Full-time dedicated engineers, Dedicated team, Managed delivery Full-time dedicated engineers, Dedicated team, Managed delivery
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Xenoss vs ScienceSoft

Dimension Xenoss ScienceSoft
Best company size Startup to mid-market Startup to mid-market
Best industries Ad tech, Media, Fintech Healthcare, Manufacturing, Fintech
Best use cases Adding streaming-data engineers ahead of an ML launch, Placing ML engineers in a bidding or attribution product Adding a senior data scientist to a healthcare analytics team, Staffing a manufacturing predictive-maintenance project
Typical project type Full-time dedicated engineers Full-time dedicated engineers

Xenoss vs ScienceSoft: pros and cons

Xenoss
+ Strong on real-time data infrastructure that ML features depend on
+ Has placed engineers into UK teams that struggled to hire locally
+ Senior leadership comes from the industry it serves most
+ Covers both data engineering and model work
- Ad-tech focus is narrower than general AI staffing
- Mid-sized bench
- Rates are not public
ScienceSoft
+ Rates arrive with the CVs, before any sales calls
+ Long history in healthcare and manufacturing IT
+ Experienced data scientists rather than junior ML hires
- AI is one of many service lines
- Smaller bench than the large nearshore firms
- Headcount figures differ between the company's own pages

Who should choose Xenoss?

A typical fit: adding streaming-data engineers ahead of an ML launch.

Data engineers with ad-tech throughput experience. Minimum engagement is not publicly disclosed. Works best with clients in Ad tech, Media, Fintech, Retail and e-commerce.

Who should choose ScienceSoft?

A typical fit: adding a senior data scientist to a healthcare analytics team.

Senior data scientists with a published hiring timeline. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare, Manufacturing, Fintech, Retail.

Decision matrix: Xenoss vs ScienceSoft

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 Xenoss
Your budget is at the lower end Compare: Xenoss (Not disclosed) vs ScienceSoft (Not disclosed)
You need specialist depth in a specific vertical Xenoss
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: Xenoss vs ScienceSoft

Use case Xenoss fit ScienceSoft fit Winner
Adding streaming-data engineers ahead of an ML launch Strong Strong Both equally
Placing ML engineers in a bidding or attribution product Strong Limited Xenoss
Adding a senior data scientist to a healthcare analytics team Strong Strong Both equally
Staffing a manufacturing predictive-maintenance project Limited Strong ScienceSoft

Verdict: Xenoss vs ScienceSoft

Xenoss (4.3/5) is the stronger overall choice for most AI Staffing projects. Data engineers with ad-tech throughput experience.

ScienceSoft (4.0/5) is worth a look if you need staffing a manufacturing predictive-maintenance project. If your situation matches that, ScienceSoft is a competitive option.

Related comparisons

Xenoss vs ScienceSoft FAQ

Is Xenoss better than ScienceSoft?

Xenoss (4.3/5) scores higher overall, but "better" depends on your use case. Xenoss's strongest advantage: strong on real-time data infrastructure that ML features depend on. ScienceSoft's strongest advantage: rates arrive with the CVs, before any sales calls.

How do Xenoss and ScienceSoft differ in pricing?

Xenoss uses time and materials; staff augmentation; rates on request pricing. ScienceSoft uses time and materials; rates sent with cvs pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Xenoss or ScienceSoft?

Xenoss is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each agency before shortlisting.

What are the main differences between Xenoss and ScienceSoft?

Xenoss's primary differentiator is: data engineers with ad-tech throughput experience. ScienceSoft's primary differentiator is: senior data scientists with a published hiring timeline. They also differ in team size (50–249 vs 750+), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Ad tech, Media vs Healthcare, Manufacturing).

Verify all details directly with each agency before making a decision.