Best Development Partners for Kentico 13 to Xperience Migration

Kentico 13 is sort of heading toward the end of its support lifecycle, and for any organization still running on it, the real question is not really if you migrate to Xperience by Kentico anymore; it’s more like who you trust to actually do it. A Kentico 13 to Xperience migration is rarely a straightforward lift-and-shift thing. It usually touches content architecture, URL structure, and SEO equity, plus custom modules, third-party integrations, and for larger sites, multi-site or multi-brand setups that really can’t live with downtime or a broken checkout flow for even a moment.

Picking the wrong partner can drag things out for months, with a rebuilt website that quietly loses search rankings, or a “migration” that slowly turns into a full rebuild nobody budgeted for. Picking the right one means a phased and tested cutover that keeps what already works while opening up what Xperience by Kentico does better: composable architecture, a versionless update model, and built-in AI-assisted content tools.

Below is a look at development partners with real, verifiable Kentico Xperience migration experience, Kentico partner status, certified developers, and live case studies to help you shortlist a kentico development company that fits the scope and complexity of your project.

1. Bits Orchestra

Bits Orchestra specializes in the modernization of complex web platforms, CMS, and DXP on Microsoft .NET, and Kentico is essentially its deepest area of expertise. The company is ranked among the top-3 Kentico vendors in Eastern Europe, and it holds Kentico Xperience Bronze Partner status. The team is led by co-founder and CEO Roman Hutnyk, a former Kentico MVP, alongside CTO Serhii Sydorchuk and 10 Kentico Certified Developers.

What really sets Bits Orchestra apart in migration work is that they are focused on the kind of projects that other vendors tend to dodge: deeply customized multi-site Kentico 13 environments where downtime isn’t allowed, and where even search rankings can not wobble for a second. They’ve done 65+ Kentico websites (27 direct-client engagements plus extra confidential white-label efforts for agencies too) and the big flagship example is a 12,000+ SKU dealer platform that supports 350+ distributors over 18 countries. That one moved from Kentico 13 to Xperience by Kentico in a single weekend, and there were no reported incidents or weird rollbacks.

Bits Orchestra is also a technology vendor for Shaw Industries, including brands COREtec and Anderson Tuftex. Beyond that, they’ve delivered work for KONI, the Harold Grinspoon Foundation, Digitron, and TimeOutdoors. Their Kentico delivery has brought multiple Site of the Month wins and two Site of the Year finalist recognitions, backed by a 5.0 rating across 30+ verified Clutch reviews.

Best for: thorny multi-site or integration-heavy Kentico 13 migrations where an assessment-first, paid approach and long-term platform ownership matter more than the lowest price tag.

2. BizStream

BizStream is a Kentico Gold Partner based in the U.S. with more than 15 years of practical Kentico experience. The team includes Brian McKeiver, a 15-time consecutive Kentico MVP, one of the most recognizable names in the Kentico world, plus additional certified developers and marketers who are dedicated full-time to Kentico.

BizStream kind of positions itself as a full-service shop, doing design, development, integrations, hosting, migrations, and ongoing support all under one roof, kind of like that. And for teams that are still undecided on whether to upgrade to Xperience by Kentico or instead migrate elsewhere entirely, BizStream provides a more structured evaluation pathway, based on budget, timeline, and those long-term objectives, not really trying to steer everyone toward a single, fixed result.

Best for: U.S.-based groups that want a long-standing Gold Partner, with one of the more senior Kentico MVPs in the country taking part in the scoping work.

3. Ntara

Ntara has maintained Kentico Xperience Gold Partner status, which is Kentico’s top partner tier, since 2014. The agency created and deployed what is described as the first Kentico 12 MVC implementation in the United States, and since then they have kept focusing on MVC-based upgrades, which is pretty relevant for organizations moving away from older Kentico 13 architectures.

Their in-house capabilities include Microsoft Azure, e-commerce, and the marketing-side configuration work, plus Ntara also has Kentico Xperience Hosting Partner status. That combination can make the post-migration handoff feel calmer, especially if the team wants development and hosting handled by one vendor.

Best for: organizations that prefer an early, MVC-native Kentico specialist, with in-house Azure hosting support.

4. Cantarus

Cantarus is a UK-based Xperience by Kentico Gold Partner, recognized for migrations coming from legacy Kentico versions and also migrations from other platforms like DNN. The agency operates its own UK hosting infrastructure, called kalaniCloud, built specifically with Kentico websites in mind.

A rather notable reference effort is Cantarus’s redevelopment of the World Travel and Tourism Council’s global web presence on Xperience by Kentico, which picked up a Kentico Site of the Month award in 2025. And you can see in Cantarus’ public remarks about DNN-to-Kentico moves that they’re coming from true cross-platform work, not merely the same platform version lift-and-shift upgrade style.

Best for: UK and European organizations that are looking for a Gold Partner with its own dedicated Kentico hosting setup.

5. Ray Business Technologies (RBT)

Ray Business Technologies has been sitting in Kentico Gold Partner status since 2010, and they say they operate one of the biggest, dedicated Kentico Certified Developer crews worldwide. RBT covers the whole Kentico journey, meaning delivery of the implementation, ongoing upgrades and migrations, custom module creation, and also third-party integrations with CRM, ERP, and payment gateways.

Their long-running presence inside the Kentico ecosystem (more than a decade as a Gold Partner) makes RBT a sensible match for organizations that want a sizable delivery group, and also for folks who feel ok with an offshore-heavy working approach.

Best for: teams that need a large dedicated Kentico developer bench so they can run multiple parallel streams across implementation and migration.

6. Americaneagle.com

Americaneagle.com is a sizable, well-established Kentico partner agency based in the U.S. They have a long track record with enterprise Kentico builds, and they also have a documented migration and implementation case study for TowneBank. The company tends to describe Kentico partner selection through a risk reduction lens, which is a solid angle when your site is business critical and you’re migrating, because overruns in cost and operational interruption are often the actual threats. Not just the pure technical migration steps.

So Americaneagle.com’s Kentico work, as this larger multi-platform agency thing, kinda lives next to a wider set of CMS and ecommerce platforms. Which can be nice for orgs that are kinda weighing Kentico against other options before they lock in and commit to a migration path.

Best for: enterprise teams that want one bigger agency, with broad CMS or ecommerce experience too, not just Kentico-only delivery.

7. MSQ DX

MSQ DX is a Kentico solution partner; they’ve built Nimbus, a proprietary AI-assisted content migration tool, and it’s meant pretty specifically to reduce the work, the cost, and the risk involved in moving to Xperience by Kentico. They also talk about a delivery accelerator they call DXA, and yeah, they emphasize AI strategy work that lines up with Kentico’s own AIRA capabilities.

If you’re interested, like specifically, in how AI tooling can help de-risk the content-migration side of a Kentico 13 to Xperience transition, MSQ DX is one of the few partners promoting purpose-built tooling for that exact pain point. Not just a mostly manual migration process, you know.

Best for: organizations that put AI-assisted content migration tooling pretty high on the vendor-selection checklist.

8. iMedia

iMedia is a certified Kentico partner, and their team has Kentico Certified Marketer, Kentico Certified Developer, and Content Modeling Specialist certifications. They’ve also been recognized with Kentico Site of the Month and Site of the Year awards, which is reassuring.

They explicitly support migrations from earlier legacy Kentico versions, including EMS, 12, and 13, and they also handle full replatforming from other CMS platforms, covering content, architecture, and integrations all together, not just one layer.

Best for: teams that need migration plus content-modeling thinking, not just a technical lift.

What a Kentico 13 to Xperience Migration Actually Involves

It kinda helps to understand the scope first before comparing vendors, because “migration” is not the same word to everyone; different partners use it in different ways, so the definition gets messy. At minimum, a real Kentico 13 to Xperience by Kentico migration usually covers:

Content and structure transfer. Pages, media, taxonomies, and page templates need to move without breaking internal linking or those content relationships you’ve built over time.
URL preservation and redirects. Xperience by Kentico routing differs from legacy Kentico, so URL structures often shift. A partner that does not map your old URLs to new ones with the right redirects can cost you months of built-up SEO equity, almost overnight.
Custom module and integration rebuild. Legacy Kentico 13 sites often include years of custom .NET code, web parts, and third-party integrations (ERP, CRM, payment gateways, marketing automation) that don’t transfer automatically, and instead need to be re-architected for the new platform.
Testing and staged cutover. For larger setups or multi-site environments, you generally need a phased approach, running the new platform in parallel, validating key flows like checkout or lead capture, and switching over during a defined maintenance window, not all at once, obviously.
Post-launch stabilization. The first few weeks after go-live are when the odd edge cases show up: broken forms, missing redirects, integration timing issues, so the partner’s support model during that window matters just as much as the migration itself.

Vendors that treat migration like a content export/import exercise tend to underestimate the second and third items above, and that’s usually where most budget overruns start, along with the go-live incidents.

How to Narrow the List

Kentico partner status (Bronze, Silver, or Gold) is a decent first filter, but honestly it is not the entire story. A partner tier mostly mirrors certification and delivery volume; still, that alone doesn’t really mean that a specific vendor handled a migration as intricate as yours. So before you narrow the list, it’s smart to check a few things straight away, like:

History that matches your versions. Ask for concrete examples of Kentico 13 to Xperience by Kentico migrations, specifically. Not just “we did Kentico” kind of work in general.
Real complexity, not only the pretty sites. If your setup has ERP, CRM, PIM, or custom .NET modules, then confirm the partner migrated environments with a similar level of entanglement, not only marketing pages with simple templates.
Assessment-first behavior. A vendor who is ready to scope and price a paid assessment first, before they lock you into a fixed migration cost, usually is telling you something. Like they have been burned by uncertainties before, and they’ve created a method to avoid those surprises.
Reviews and live proof. Look at verified reviews, named clients, and credible live case studies. Clutch-style ratings and awards (Kentico Site of the Month, or Site of the Year) are way harder to fake than bland “testimonial-ish” statements.
What happens after go-live. Migration risk doesn’t magically stop at cutover. Ask what support actually looks like in the weeks after launch, when the real-world issues surface and don’t stay quiet.

Kentico 13 support timeline makes this more of a deliberate decision than something to rush through. Whichever Kentico development company you shortlist, the clearest signal isn’t the marketing page. It’s whether the team can point to a migration of a comparable scale, on the platform, with a real name tied to it.