Sigma Software Group vs Addepto: full comparison for 2026
Last updated: July 2026
Quick verdict
Addepto (4.1/5) edges ahead of Sigma Software Group (4.0/5) overall. Addepto is the better choice for companies wanting boutique AI/BI consulting from a team now backed by KMS Technology's additional resources post-acquisition.. Sigma Software Group is the stronger option for companies wanting ML delivered by an outsourcing firm with an independently verified, decade-plus industry ranking track record.. The right choice depends on your project size, budget, and required tech stack.
Sigma Software Group vs Addepto: head-to-head summary
| Criterion | Sigma Software Group | Addepto |
|---|---|---|
| Founded | 2002 | 2018 |
| HQ | Stockholm, Sweden | Warsaw, Poland |
| Team size | 1,001–5,000 | 51–200 |
| Rating | 4.0 / 5 | 4.1 / 5 |
| Best for | Companies wanting ML delivered by an outsourcing firm with an independently verified, decade-plus industry ranking track record. | Companies wanting boutique AI/BI consulting from a team now backed by KMS Technology's additional resources post-acquisition. |
| Pricing model | Fixed project, dedicated team, staff augmentation | Fixed project and consulting retainer |
| Min. engagement | Not published | $20K |
| Primary tech stack | Python, TensorFlow, AWS | Python, Scikit-learn, TensorFlow |
| Industries served | Technology/SaaS, Media & Entertainment, Automotive, Aerospace | Financial Services, Retail, Manufacturing |
Sigma Software Group vs Addepto: overview
Sigma Software Group
Sigma Software Group was founded in 2002 by five colleagues from Kharkiv, Ukraine — four developers and a lawyer — and is now headquartered in Stockholm, Sweden, with roughly 1,600–2,100 professionals across 40 offices in 19 countries. The firm has appeared on IAOP's World's Top 100 Outsourcing list every year since 2015, and its machine learning work sits alongside cybersecurity, AR/VR, and IoT practices.
Addepto
Addepto is an AI and data consulting company founded in Warsaw, Poland in 2018 by Edwin Lisowski and Artur Haponik (one source lists 2017), specializing in machine learning, artificial intelligence, and business intelligence solutions. Reported headcount is roughly 55–58 employees across Europe, North America, and Asia. In December 2025, Addepto was acquired by KMS Technology; prospective clients should confirm how the acquisition affects team continuity, existing contracts, and service delivery going forward.
Services and capabilities: Sigma Software Group vs Addepto
| Capability | Sigma Software Group | Addepto |
|---|---|---|
| Custom ML model development | ✓ | ✓ |
| Deep learning & computer vision | ✗ | ✗ |
| NLP & LLM / Generative AI | ✗ | ✗ |
| MLOps & production deployment | ✗ | ✗ |
| Data engineering | ✗ | ✗ |
| AI strategy consulting | ✓ | ✓ |
| Staff augmentation | ✓ | ✗ |
Tech stack comparison: Sigma Software Group vs Addepto
| Framework / platform | Sigma Software Group | Addepto |
|---|---|---|
| Python | ✓ | ✓ |
| TensorFlow | ✓ | ✓ |
| PyTorch | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | ✓ | ✓ |
| Google Cloud | N/A | N/A |
| Kubernetes | N/A | N/A |
| Databricks | N/A | N/A |
| LangChain | N/A | N/A |
Pricing comparison: Sigma Software Group vs Addepto
| Criterion | Sigma Software Group | Addepto |
|---|---|---|
| Minimum engagement | Not published | $20K |
| Engagement models | Fixed project, Dedicated team, Staff augmentation | Fixed project, Consulting retainer |
| Rate transparency | Not public | Minimum disclosed |
| Price tier | Enterprise / not published | Accessible |
Target audience comparison: Sigma Software Group vs Addepto
| Dimension | Sigma Software Group | Addepto |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Technology/SaaS, Media & Entertainment, Automotive | Financial Services, Retail, Manufacturing |
| Best use cases | Companies wanting ML delivered by a vendor with a long, independently verified outsourcing track record, Cross-disciplinary projects combining ML with AR/VR or IoT | Mid-market companies wanting boutique AI/BI consulting now paired with KMS Technology's broader resources, Business intelligence projects that also require a machine learning component |
| Typical project type | Fixed project | Fixed project |
Sigma Software Group vs Addepto: pros and cons
| Sigma Software Group | |
|---|---|
| + | 23 years of operating history from five co-founders to a 40-office global group |
| + | Independently verified IAOP Top 100 Outsourcing ranking every year since 2015, unlike self-reported rankings |
| + | 1,600+ professionals across 19 countries supports broad geographic delivery |
| + | Machine learning work paired with adjacent specialties like AR/VR and cybersecurity for cross-disciplinary projects |
| - | Machine learning is one of several specialties (alongside cybersecurity, AR/VR, IoT) rather than the firm's core focus |
| - | Less AI-specific branding than firms marketed explicitly as AI-first |
| - | Minimum engagement size not publicly disclosed |
| Addepto | |
|---|---|
| + | 7 years of focused AI/BI consulting experience prior to the KMS Technology acquisition |
| + | Small team size historically meant direct founder-level access on engagements |
| + | Multi-continent presence (Europe, North America, Asia) despite a compact headcount |
| + | Acquisition by KMS Technology (Dec 2025) may bring additional delivery resources and stability |
| - | Acquired by KMS Technology in December 2025 — buyers should confirm how this affects team continuity, pricing, and existing contracts before signing |
| - | Public sources disagree on exact founding year (2017 vs. 2018) and employee count (55 vs. 58) |
| - | Post-acquisition integration could change the service delivery model in ways not yet publicly documented |
Who should choose Sigma Software Group?
Sigma Software Group is the right choice for companies wanting ML delivered by an outsourcing firm with an independently verified, decade-plus industry ranking track record..
Consecutive annual placement on IAOP's World's Top 100 Outsourcing list every year since 2015.. Minimum engagement starts at Not published. Works best with clients in Technology/SaaS, Media & Entertainment, Automotive, Aerospace.
Who should choose Addepto?
Addepto is the right choice for companies wanting boutique AI/BI consulting from a team now backed by KMS Technology's additional resources post-acquisition..
Boutique AI/BI consultancy that gained additional scale and resources through its December 2025 acquisition by KMS Technology.. Minimum engagement starts at $20K. Works best with clients in Financial Services, Retail, Manufacturing.
Decision matrix: Sigma Software Group vs Addepto
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Sigma Software Group |
| You need a large dedicated team for an ongoing programme | Sigma Software Group |
| Your budget is at the lower end | Compare: Sigma Software Group (Not published) vs Addepto ($20K) |
| You need specialist depth in a specific vertical | Sigma Software Group |
| You need staff augmentation or team extension | Sigma Software Group |
| You need consulting before committing to a build | Sigma Software Group |
Use case fit: Sigma Software Group vs Addepto
| Use case | Sigma Software Group fit | Addepto fit | Winner |
|---|---|---|---|
| Companies wanting ML delivered by a vendor with a long, independently verified outsourcing track record | Strong | Strong | Both equally |
| Cross-disciplinary projects combining ML with AR/VR or IoT | Strong | Limited | Sigma Software Group |
| Mid-market companies wanting boutique AI/BI consulting now paired with KMS Technology's broader resources | Limited | Strong | Addepto |
| Business intelligence projects that also require a machine learning component | Limited | Strong | Addepto |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: Sigma Software Group vs Addepto
Addepto (4.1/5) is the stronger overall choice for most Machine Learning Development projects. Boutique AI/BI consultancy that gained additional scale and resources through its December 2025 acquisition by KMS Technology.. It is best for companies wanting boutique AI/BI consulting from a team now backed by KMS Technology's additional resources post-acquisition..
Sigma Software Group (4.0/5) is the better choice when companies wanting ML delivered by an outsourcing firm with an independently verified, decade-plus industry ranking track record.. If your situation matches those criteria, Sigma Software Group is a competitive option.
Related comparisons
Sigma Software Group vs Addepto FAQ
Is Sigma Software Group better than Addepto?
Addepto (4.1/5) scores higher overall, but "better" depends on your use case. Sigma Software Group is better for companies wanting ML delivered by an outsourcing firm with an independently verified, decade-plus industry ranking track record.. Addepto is better for companies wanting boutique AI/BI consulting from a team now backed by KMS Technology's additional resources post-acquisition..
How do Sigma Software Group and Addepto differ in pricing?
Sigma Software Group uses fixed project, dedicated team, staff augmentation pricing with a minimum engagement of Not published. Addepto uses fixed project and consulting retainer pricing with a minimum engagement of $20K. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Sigma Software Group or Addepto?
Sigma Software Group 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 Sigma Software Group and Addepto?
Sigma Software Group's primary differentiator is: consecutive annual placement on iaop's world's top 100 outsourcing list every year since 2015.. Addepto's primary differentiator is: boutique ai/bi consultancy that gained additional scale and resources through its december 2025 acquisition by kms technology.. They also differ in team size (1,001–5,000 vs 51–200), minimum engagement (Not published vs $20K), and primary industries served (Technology/SaaS, Media & Entertainment vs Financial Services, Retail).
Last reviewed: July 2026. Verify all details directly with each agency before making a decision.