Addepto vs Sigma Software Group: full comparison for 2026
Last updated: July 2026
Quick verdict
Addepto (4.3/5) edges ahead of Sigma Software Group (4.2/5) overall. Addepto is the better choice for companies seeking a Forbes/Deloitte-recognized AI consultancy, provided they factor in post-acquisition integration risk.. Sigma Software Group is the stronger option for automotive, aviation, and AdTech companies that need a large, vertically experienced IT consultancy with an AI practice.. The right choice depends on your project size, budget, and required tech stack.
Addepto vs Sigma Software Group: head-to-head summary
| Criterion | Addepto | Sigma Software Group |
|---|---|---|
| Founded | 2018 | 2002 |
| HQ | Warsaw, Poland | Stockholm, Sweden |
| Team size | 50–100 | 2,100+ |
| Rating | 4.3 / 5 | 4.2 / 5 |
| Best for | Companies seeking a Forbes/Deloitte-recognized AI consultancy, provided they factor in post-acquisition integration risk. | Automotive, aviation, and AdTech companies that need a large, vertically experienced IT consultancy with an AI practice. |
| Pricing model | Project-based, consulting retainer | Time & materials, dedicated team |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, TensorFlow, AWS | Python, TensorFlow, AWS |
| Industries served | FinTech, Manufacturing, Retail & E-commerce | Automotive, Aviation, Gaming, Telecom, FinTech |
Addepto vs Sigma Software Group: overview
Addepto
Addepto was founded in Warsaw in 2018 by Data Science enthusiasts Edwin Lisowski and Artur Haponik, delivering AI consulting and data-driven solutions recognized by Forbes, Deloitte, and the Financial Times. In December 2025, Addepto was acquired by KMS Technology, and prospective clients should confirm how delivery teams, pricing, and leadership continuity have changed post-acquisition. Reported employee counts vary from roughly 11–50 to 72, reflecting the transition period around the acquisition.
Sigma Software Group
Sigma Software Group was founded in 2002 and operates as a global software development and technology consulting company with more than 2,100 professionals across 40 offices in 19 countries; corporate headquarters is listed as Stockholm, Sweden with major operations centered in Kharkiv, Ukraine. The firm has built domain depth in AdTech, automotive, aviation, gaming, telecom, e-learning, FinTech, and PropTech over more than a decade of AI and machine learning work, and holds Clutch Global Award and Clutch Champion recognitions. Its scale and vertical breadth position it closer to a large enterprise IT consultancy than a boutique ML specialist.
Services and capabilities: Addepto vs Sigma Software Group
| Capability | Addepto | Sigma Software Group |
|---|---|---|
| Custom ML Models | ✓ | ✓ |
| Computer Vision | ✗ | ✗ |
| NLP | ✗ | ✗ |
| MLOps | ✗ | ✓ |
| Generative AI | ✓ | ✗ |
| AI Consulting | ✓ | ✓ |
Tech stack comparison: Addepto vs Sigma Software Group
| Framework / platform | Addepto | Sigma Software Group |
|---|---|---|
| TensorFlow | ✓ | ✓ |
| 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: Addepto vs Sigma Software Group
| Criterion | Addepto | Sigma Software Group |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Project-based, Consulting retainer | Dedicated team, Time & materials, Staff augmentation |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Addepto vs Sigma Software Group
| Dimension | Addepto | Sigma Software Group |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | FinTech, Manufacturing, Retail & E-commerce | Automotive, Aviation, Gaming |
| Best use cases | Company wants an AI consultancy with independent press recognition for vendor due diligence., Client is comfortable evaluating a firm mid-acquisition and confirming continuity directly before signing. | Automotive or aviation company needs AI development from a vendor with genuine domain history in that sector., AdTech or gaming company needs ML at enterprise delivery scale. |
| Typical project type | Project-based | Dedicated team |
Addepto vs Sigma Software Group: pros and cons
| Addepto | |
|---|---|
| + | Press recognition from Forbes, Deloitte, and the Financial Times provides independent third-party validation beyond client testimonials. |
| + | Founder-led AI consulting model since 2018, prior to being acquired. |
| + | Now backed by KMS Technology's broader resources post-acquisition, which may add delivery capacity. |
| - | Acquired by KMS Technology in December 2025 — leadership continuity, pricing, and delivery-team stability during integration are unconfirmed. |
| - | Reported headcount varies significantly across sources (11–50 vs. 72), making current team size hard to pin down. |
| - | Recent acquisition means the company's standalone track record may not reflect how engagements are run going forward. |
| Sigma Software Group | |
|---|---|
| + | 2024 Spring Clutch Global Award and Clutch Champion recognitions are third-party validated distinctions. |
| + | Rare, genuine domain depth in automotive and aviation AI, verticals most ML boutiques don't touch. |
| + | 2,100+ professionals across 40 offices gives it enterprise-scale delivery capacity most boutiques lack. |
| + | 22+ years of company history (since 2002) predates the AI hiring wave, suggesting organic vertical expertise. |
| - | Corporate HQ is listed as Stockholm, but primary operational scale sits in Kharkiv, Ukraine — worth clarifying the contracting entity. |
| - | 2,100+ person scale means AI/ML is one practice among many verticals, not the firm's sole focus. |
Who should choose Addepto?
Addepto is the right choice for companies seeking a Forbes/Deloitte-recognized AI consultancy, provided they factor in post-acquisition integration risk..
AI consulting boutique with third-party press recognition (Forbes, Deloitte, Financial Times), now part of KMS Technology.. Minimum engagement starts at Not published. Works best with clients in FinTech, Manufacturing, Retail & E-commerce.
Who should choose Sigma Software Group?
Sigma Software Group is the right choice for automotive, aviation, and AdTech companies that need a large, vertically experienced IT consultancy with an AI practice..
Deep, decade-plus domain expertise in AdTech, automotive, and aviation combined with enterprise-scale delivery capacity.. Minimum engagement starts at Not published. Works best with clients in Automotive, Aviation, Gaming, Telecom, FinTech.
Decision matrix: Addepto vs Sigma Software Group
| 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 | Sigma Software Group |
| Your budget is at the lower end | Compare: Addepto (Not published) vs Sigma Software Group (Not published) |
| You need specialist depth in a specific vertical | Sigma Software Group |
| You need production MLOps support after model launch | Sigma Software Group |
| You need consulting before committing to a build | Addepto |
Use case fit: Addepto vs Sigma Software Group
| Use case | Addepto fit | Sigma Software Group fit | Winner |
|---|---|---|---|
| Company wants an AI consultancy with independent press recognition for vendor due diligence. | Strong | Strong | Both equally |
| Client is comfortable evaluating a firm mid-acquisition and confirming continuity directly before signing. | Strong | Limited | Addepto |
| Automotive or aviation company needs AI development from a vendor with genuine domain history in that sector. | Limited | Strong | Sigma Software Group |
| AdTech or gaming company needs ML at enterprise delivery scale. | Limited | Strong | Sigma Software Group |
| Fixed-scope ML build | Limited | Limited | Both equally |
| Ongoing model retraining | Limited | Limited | Both equally |
Verdict: Addepto vs Sigma Software Group
Addepto (4.3/5) is the stronger overall choice for most Machine Learning Development projects. AI consulting boutique with third-party press recognition (Forbes, Deloitte, Financial Times), now part of KMS Technology.. It is best for companies seeking a Forbes/Deloitte-recognized AI consultancy, provided they factor in post-acquisition integration risk..
Sigma Software Group (4.2/5) is the better choice when automotive, aviation, and AdTech companies that need a large, vertically experienced IT consultancy with an AI practice.. If your situation matches those criteria, Sigma Software Group is a competitive option.
Related comparisons
Addepto vs Sigma Software Group FAQ
Is Addepto better than Sigma Software Group?
Addepto (4.3/5) scores higher overall, but "better" depends on your use case. Addepto is better for companies seeking a Forbes/Deloitte-recognized AI consultancy, provided they factor in post-acquisition integration risk.. Sigma Software Group is better for automotive, aviation, and AdTech companies that need a large, vertically experienced IT consultancy with an AI practice..
How do Addepto and Sigma Software Group differ in pricing?
Addepto uses project-based, consulting retainer pricing with a minimum engagement of Not published. Sigma Software Group uses time & materials, dedicated team 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: Addepto or Sigma Software Group?
Addepto 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 Addepto and Sigma Software Group?
Addepto's primary differentiator is: ai consulting boutique with third-party press recognition (forbes, deloitte, financial times), now part of kms technology.. Sigma Software Group's primary differentiator is: deep, decade-plus domain expertise in adtech, automotive, and aviation combined with enterprise-scale delivery capacity.. They also differ in team size (50–100 vs 2,100+), minimum engagement (Not published vs Not published), and primary industries served (FinTech, Manufacturing vs Automotive, Aviation).
Last reviewed: July 2026. Verify all details directly with each company before making a decision.