Custom Development

AI-powered Modernization

Modernization is now within reach for projects you shelved because the cost of understanding the system first was too high.

FRAMEWORK

AI,
WHAT
A GIFT

Companion Economy: Where emotional connection becomes the most valuable currency

Companion_ecconomy_hero_background Companion_ecconomy_hero_background

 

73%


of AI use is outside work*

 

 

46%


active AI users use it at least occationally for decision making or comparison (Global)**

 

 

80%


larger shopping cart value when AI is used in decision making (UK)**

 

 

83%


believe the use of AI will result in a wide range of benefits (Global)**

 

Source: *NBER Study Sep 2025, **KPMG

 

Position early to scale reach and 
deepen the customer relationship layer

With ChatGPT and Google’s AI Mode becoming everyday tools, people are no longer relying only on brand websites or apps. Instead, they’re shopping, searching, and making decisions through AI-driven conversations that skip the usual steps. This is both threat and opportunity for companies.

To retain loyalty and customer engagement, companies need to figure out how they tap onto this new kind of customer behavior with their own AI-companions, in their own channels.

In the Companion Economy, growth isn’t about adding more features or squeezing people through rigid purchase and loyalty program funnels. It’s about being close, helpful, and trustworthy where needed and when needed — offering solutions that are personal, timely, predictive, and reliable.

The next big shift isn’t about who has the most advanced technology. It’s about who own the client relationship built on trust.

From Tools to Companions:
The Rise of the Agentic Age


AI agents are no longer tools — they're trusted companions.


Emotional utility is overtaking transactional value.


Your brand is either a companion – or background noise.

The technical unlock with frontier AI Models + agentic development

Most modernization fails because it takes too long to understand the legacy system and risk stays high. Siili uses AI to accelerate discovery, reduce uncertainty, and deliver modernization in safe slices.

Advanced Reasoning:
New models can resolve complex, multi-file tasks and architectural shifts.

Autonomous Velocity: Agentic IDEs cut dev timelines from weeks to hours.

Lifecycle Management: Autonomous E2E workflow from planning to deployment.

Modernization-5_4-2

40-60%

Faster discovery & analysis

30-50%

Reduction in development costs.

90%+

Automated test coverage

3+ AI

vs. a traditional team of 7–8

New economics of modernizing your digital systems and services

The threshold for modernising legacy systems has dropped significantly. Work that once required months of expert analysis and carried unacceptable risk is now achievable.

AI can do the hard part of understanding what a system actually does. What used to take 3 months in manual effort on repetitive analysis and documentation now takes 4–6 weeks.

AI-generated regression suites catch issues before production. Auto-generated tests ensure the new system works exactly like the old one – or better.

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Modernization paths​
Strategic options with trade-offs.

Rehost

Targets only the bottom infrastructure layers. Moving the workloads to cloud VMs without changing any code.​

AI acceleration:​
Dependency mapping, configuration generation, compatibility analysis.

Replatform

Move to modern infrastructure with minimal code changes.​

AI acceleration:​
Pattern detection, automated refactoring, test generation.

Refactor

Restructure code for maintainability without changing behavior.

AI acceleration:​
Logic extraction, spec generation, code scaffolding, validation.

Rebuild

Rewrite from scratch with modern architecture.​

AI acceleration:​
Gap analysis, data migration mapping, integration planning.

Replace

Substitute with commercial off-the-shelf or SaaS solution.

AI acceleration:​
Usage analysis, dependency discovery, safe shutdown validation.​

Managed AI Service Model

SIILI-Data&AI-16_9-3


Managed AI Solutions

We ensure your AI models and AI solutions are deployed safely, reliably, and secure, with continuous monitoring and improvement. Once live, our team handles daily AI operations: managing the AI platform, keeping data fresh, monitoring quality and costs and responding to incidents.

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What you get

Full-stack AI operations
We manage the entire AI stack – from infrastructure and data pipelines to model serving and application integration. Whether you're running traditional ML models, large language models, or both, we handle the operational complexity.

Proactive monitoring & incident management
Real-time tracking of model accuracy, latency, data drift, and infrastructure health. When issues arise, our team responds rapidly with root cause analysis and preventive measures to avoid recurrence.

Model fine-tuning & retraining
Continuous optimization of model performance through scheduled retraining, prompt engineering, and parameter tuning. We incorporate fresh data to maintain accuracy and relevance over time.

Performance & cost optimization
Ongoing adjustments to maximize speed, throughput, and cost efficiency. We keep infrastructure, token usage, and optimization costs transparent with clear models that avoid surprises.

Security & sovereign AI
Data governance, access controls, audit logging, and compliance monitoring built into operations. We help you maintain GDPR compliance and support on sovereign AI.

Vendor-neutral & flexible
Work in your chosen cloud environment (Azure, AWS, Google Cloud) with your preferred models and tools. Or leverage our sovereign LLM infrastructure for full data control. We adapt to your architecture or utilize our frameworks.

 

SIILI_Advisory-Campaign_2025-december-1800x1440px-3
SIILI-Media-AI-powered_software_development-5_4

The Perceived Customer Value of ChatGPT was valued at 83€ per month.

More than Spotify, Netflix and Facebook combined.

Source

New opportunities to embed companion services into the daily flow of consumers living with intelligent assistants

 

We'll Help you turn the new era of consumer behavior into a business opportunity

Energy

Tap onto wider ecosystem of energy consumption

Banks

Become a Prosperity Companion for financial wellness

Telcos

Re-think digital storefront and expand servicing for both B2C and B2B

Retail

Manage life's operations and erase friction

Insurance

Transform from risk mitigation to wellness catalyst

Health

Companions for for patients and practitioners

New opportunities to embed services into the daily flow of intelligent assistants

We'll Help you turn the new era of consumer behavior into a business opportunity

Energy

Own the value chain of devices, end-to-end

Banks

Become a Prosperity Companion for financial wellness

Telcos

Re-think the digital storefront and integrate servicing features B2X

Retail

Manage life's operations and erase friction

Insurance

Transform from risk mitigation to wellness catalyst

Health

Harness self-reflection and wellness for predictive healthcare

We'll help you turn the new era of consumer behavior into a competitive advantage

Let's explore your role and opportunities in Companion Economy. For companies that owned the digitalization era, vertical leaders with optimized funnels and mature servicing models. The opportunity is equally transformative to Telco, hospitality banking, retail, FMCG to health and wellness.

A bank becomes a prosperity coach. An airline becomes a travel companion.

Companies we work with

Logos-1000x800-Alma_media
Logos-1000x800-Aalto_University-1
Logos-1000x800-Elisa
Logos-1000x800-Finavia
Logos-1000x800-Fintraffic
Logos-1000x800-Teosto
Logos-1000x800-University_of_Oulu
Logos-1000x800-Wartsila

Download our modernization guidebook

SIILI-Modernization_guidebook-featured

 

AI-native modernization

AI-native modernization is no longer only about updating legacy technology. It’s about rebuilding digital capabilities for a world where AI is embedded into products, services, operations, and decision-making from the ground up.

In our latest guidebook, we explore how organizations can move from traditional modernization programs toward AI-native operating models by combining scalable cloud foundations, AI-powered development, agentic capabilities, and continuous modernization practices.

The guide offers practical insights, real-world perspectives, and concrete ways to turn modernization into measurable business impact.

Download

Find out what's already possible

Walk away with a clear modernisation roadmap, prioritised by business impact and the confidence to act on it.



Marko Jaanu

Marko Jaanu

Head of Technology / Advisor

Antti Kuivalainen

Antti Kuivalainen

Head of Sales, Digital Engineering