Modernization & Migration for Business Websites and Portals
Modernizing business-critical websites and portals without rebuilding from scratch.
Delivered by a senior .NET and CMS team with Kentico Xperience Bronze Partner status.
years of experience
happy clients
successful projects
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Clients about Bits Orchestra
About Bits Orchestra
Bits Orchestra specialises in modernising and migrating business-critical websites and portals built across the .NET ecosystem, and is a Kentico Xperience Bronze Partner. We turn legacy platforms carrying real traffic, content, and operational value into faster, safer systems that are easier to manage and improve. Our team works directly with organisations and alongside digital and marketing agencies, delivering complex CMS and portal projects end-to-end.
Trusted by industry leaders
Modernization and Migration Services
We combine platform modernization, custom development, and integration work into one delivery. This section covers the main types of work clients ask us to handle.
We migrate legacy CMS platforms to modern .NET and headless solutions, such as Kentico Xperience and Umbraco, while preserving content structure and key integrations.
We connect CMS and portals with CRM, ERP, PIM, DAM, payment, and search through structured APIs and middleware for reliable data exchange.
We move projects from monolithic CMS to headless or composable architectures, aligning content models, APIs, and front‑ends around a shared backend.
We move .NET applications and portals to .NET Core and cloud‑ready setups, resolving performance and security issues in business‑critical systems.
White‑Label Delivery for Digital Agencies
We act as a .NET and CMS engineering partner to agencies on complex website and portal projects, handling large-scale projects and demanding integrations under their brand.
We design and develop new features, modules, and interfaces on top of modernized platforms, so you can extend existing websites and portals instead of rebuilding them from scratch.
Not sure where to start with modernisation?
Share what you have and we'll give you an honest view of the options, timelines and risks.
How we modernize and migrate platforms
We follow a structured, low‑risk approach instead of starting from scratch every time.
Discovery and assessment
We review your existing .NET and CMS estate, integrations, and content to understand risks, constraints, and opportunities.
Roadmap and sizing
We define scope, phases, timelines, and budgets, so you know what can be delivered when and at what level of risk.
Architecture and MVP design
We define the target architecture, environments, and MVP, using AI‑driven delivery to evaluate options faster and reuse what already works.
Implementation and migration
We modernize code, build new components, integrate external systems, and migrate content according to the agreed roadmap.
Testing and cut‑over
We run automated and manual testing in staging, plan a controlled cut‑over window, and monitor closely as traffic moves to the new platform.
Optimization and evolution
We tune performance, address real‑world feedback, and continue evolving the platform with new features, regions, and integrations.
Industries we have the most experience in
Over the last decade, we’ve modernised and migrated platforms for a wide range of organisations – from growing teams to global brands – with particularly strong experience in the industries below.
Why choose Bits Orchestra?
Ten years, 60+ platform projects, and a track record built on the hardest migrations – heavily customised estates, complex integrations, and systems that carry real business operations.
Deep .NET and CMS expertise
We focus on .NET, headless, and CMS work only, with 60+ projects on Kentico Xperience, Umbraco, Orchard, and custom .NET, and status as a Kentico Xperience Bronze Partner.
Built for high‑risk, evolving estates
We take on heavily customised systems with complex workflows and many integrations, migrate 50k+ items and multi‑language setups, and leave them ready for headless or composable moves.
AI‑assisted delivery
We apply AI across discovery, engineering, and testing – from analysing legacy .NET and CMS estates and mapping content to generating boilerplate code and test cases – so migrations run faster and cost less, without compromising security, governance, or maintainability.
Strong industry record
For 10+ years, we have modernised .NET and CMS estates for manufacturing, ecommerce, nonprofit, and B2B clients with clear scope and predictable delivery windows.
White‑label and co‑delivery with agencies
Agencies add us to 30–150 day CMS and portal projects as their senior .NET and headless team, while keeping full control of client strategy and communication.
Long‑term, adaptable platform ownership
Clients often keep us after launch to add AI/ML features, new integrations, and regions, so one team evolves the same .NET and CMS estate over several years.
Case studies
See how we’ve helped organizations modernize and migrate business‑critical websites and portals, with measurable improvements in performance and reliability.
Modernisation Packages
Three ways to start – pick what fits your project stage and budget.
Platform Assessment
From $1,500 · 2–3 weeks
Best for: Teams evaluating a migration before committing to a full project.
Technical audit of your CMS or portal estate
Risk and dependency mapping
Migration options with effort estimates
Phased roadmap ready to present to stakeholders
MVP Migration
From $15,000 · 6–12 weeks
Best for: Organizations ready to move a specific platform or module with a defined timeline.
Fixed-scope migration of one platform or site
Content migration, integrations and automated testing
Staging environment and controlled cut-over
Post-launch stabilization included
Full Platform Modernization
From $25,000 · Based on scope
Best for: Organizations with complex, multi-site estates that need end-to-end delivery and ongoing support.
Full discovery, architecture and migration
Complex integrations (CRM, ERP, PIM, DAM)
Dedicated .NET and CMS team throughout
Ongoing evolution and new features post-launch
What's included | Platform Assessment | MVP Migration | Full Platform Modernization |
|---|---|---|---|
Fixed price & timeline |  | | |
AI-assisted delivery | | | |
No rebuild from scratch | | | |
Dedicated project manager | | | |
Content & data migration | | | |
Third-party integrations | | | |
Third-party integrations Long-term platform evolution | | ||
Third-party integrations Multi-site / multi-brand scope | | ||
You'll get | Migration roadmap + risk report | Live platform, migrated content & integrations | Fully modernised estate + ongoing engineering partner |
Our insights
We publish practical guides on platform modernisation, migrations and digital delivery so teams can make better decisions before, during and after a project.
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![7 Steps for a Successful CMS Migration [+Practical Tips]](/getmedia/c042786d-c2dc-4f98-b166-12438287ded0/7-Essential-Things-for-a-Successful-CMS-Migration.webp?ext=.webp)
Start your project today
A straightforward process from first conversation to project kick-off.
1. Contact the team
Reach out to schedule a meeting and discuss your request
2. Get a consultation
Our experts will hear your requirements and consult on the potential developments
3. Get an estimate
Receive a detailed project estimate tailored to clarify the process flow and pricing
4. Start the work
Once everything is agreed upon, we’ll promptly kick off your project
Frequently asked questions
When is the right time to modernize or migrate our website or portal?
Typical triggers include unsupported platform versions, growing security and compliance risks, slow performance, frequent outages, difficulty publishing content at scale, or new digital products your current technology cannot support.
How do you minimize downtime and risk during a platform migration?
We start with a detailed assessment and roadmap, work in staging environments, automate testing, and plan controlled cut‑over windows to keep business‑critical websites and portals available throughout the project.
What technologies and platforms do you work with?
We specialize in the Microsoft .NET ecosystem, modern CMS and portal platforms, including Kentico Xperience and Umbraco, headless and composable architectures, and complex custom .NET solutions with integrations.
How does AI‑assisted delivery change the way you work?
We apply AI tools to analyze legacy codebases and content structures, generate boilerplate code and test cases, and surface risks earlier, helping us deliver MVPs faster while senior engineers retain control of architecture, security, and quality.
Is Bits Orchestra only focused on CMS migrations?
No. CMS migrations are a core part of our work, but we also modernize custom .NET portals, B2B platforms, and integrated estates where CMS is only one component. For detailed CMS migration scenarios and pricing, we direct clients to our dedicated CMS Migration Services page.
Do you work directly with end clients or only via agencies?
Both. We deliver projects directly for manufacturers, retailers, and B2B organizations, and also act as a white‑label .NET and CMS team for digital and marketing agencies on complex, multi‑site builds.
Contact us
Before we proceed, please help us understand your needs better. We will review your application and schedule a free estimate call
You can also send us your request
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