Change your CMS without breaking anything.

Migration, upgrade or optimization: we stabilize what you have first, then move you to the right platform in planned stages.

Get a free site assessment Talk to an architect for 30 min

They trust us with their platforms

Where to start?

Tell us where you’re stuck. We’ll tell you what to do.

Pick your situation. Each door leads to a free diagnostic, not a sales pitch.

“I need to change my CMS”

End of support, licence too expensive, a platform that can’t keep up. We compare options without bias and plan a migration that protects your content and your SEO.

Get my free migration plan

“My site is slow or unstable”

Slow pages, outages, stressful deployments. We find what’s slowing your platform down and stabilize it before you think about rebuilding.

Get my performance audit

“Our upgrades are behind”

Outdated version, security gaps, an upgrade pushed back year after year. We measure how far behind you are and bring you up to date in stages, without downtime.

Assess my version gap

The people behind Sengo

Founder and CEO Jean-Nicolas Gauthier explains who we are, what we do and who we work with.

Meet the team

Who we are, what we do, who we work withJean-Nicolas Gauthier, Founder & CEO

Attendees listening to a talk at a Sengo event

Jean-Nicolas Gauthier, Sengo founder and CEO

Helsa Sanschagrin, Sengo partner and COO

Our approach

We don’t break anything. We stabilize, migrate, then evolve.

Stabilize

We secure your current platform: fixes, performance, backups. Your site keeps running while we prepare what’s next.

Migrate or upgrade

Content, redirects, SEO, integrations: we move everything in stages, with a rollback plan at every cutover.

Evolve

High-protection hosting, continuous updates and optimization. Your platform stays current instead of becoming a problem again in three years.

Is your CMS at end of life?

Sitecore XP, Kentico 12, Optimizely CMS 11…

Enter your platform and version: in 30 seconds, we’ll tell you if you’re still supported and what your risk level is.

What we do

How we can help

CMS modernization and intranet search, built on what you already own.

Smart intranet

We want an intelligent intranet where people find anything and everything they're looking for, fast, and all in one place.

Explore intranets

Moving to SaaS

We want SaaS for security, compliance, SLA, and peace of mind.

Explore SaaS

Platform upgrades

Upgrades feel risky, expensive, or never-ending.

Explore upgrades

Search and discovery

Our content exists, but users struggle to find what matters. We need better relevance, discovery, and search experiences at scale.

Explore search

Advisory, scaling, and AI

Platform advisory

We're questioning our current stack

And want unbiased guidance before replatforming.

Explore this path

Platform scaling

What worked before no longer scales

We need a more capable DXP without over-engineering.

Explore this path

AI enablement

We want to enable our teams with AI

AI is everywhere, but we need clarity on what actually applies to our business, where to start, and how to scale knowledge across teams.

Explore this path

AI search visibility

We're invisible in ChatGPT and Claude

Buyers now ask AI assistants for recommendations, and we're not in the answer. We want to get mentioned but don't know where to start.

Explore this path

They changed platforms.

See all stories

LCI Education · Migration

23 campus sites, 9 countries, one cutover

We stabilized the platform first, then migrated to a composable architecture.

Read the story

CCQ · Upgrade

The entire tech stack brought up to date

From Sitecore 9 to 10, with Node.js, Unicorn serialization and Sitecore SXA updated along the way.

FTQ · Audit

From audit to roadmap

A platform audit, then a roadmap to set FTQ up for growth.

Cirque du Soleil · Optimization

Geolocation rethought for a global audience

Key platform components re-architected.

Sengo × Coveo

The client asked us to slow down

Six months of work delivered in two weeks. Jean-Nicolas tells the story of this Coveo-powered project.

Sengo and Coveo

The client asked us to slow downJean-Nicolas Gauthier, Founder & CEO

Hear it from them

“Sengo supported us in improving the geolocation capabilities of our digital platform. Their team led the re-architecture of key components, adapted to Cirque du Soleil's unique content structure and operational context. ”

Moulay El Mehdi

Solutions Architect @ Cirque du Soleil

“Sengo stabilized and evolved a complex Sitecore environment. Their structured approach and understanding of technical challenges enabled us to initiate a major overhaul on solid foundations.”

Éric Briand

CITO @ LCI Education

“Sengo helped us in migrating our e-commerce platform to LightSpeed POS. Their technical assistance facilitated this transition at a key moment in Hooké's development.”

Fred Campbell

Founder & President @ Hooké

“We didn’t need an agency. We needed a technical partner who understood our reality. That’s exactly what Sengo was.”

Vincent Descoteaux

Co-Founder @ HelloBox

“Sengo has been a trusted IT advisor for us, guiding our technology decisions with clarity and helping us navigate complex choices with confidence.”

Alexandre Bouchard

President @ Emballage L Boucher

“Having collaborated with Jean-Nicolas in Coveo's R&D department, I can confidently say his expertise is top-tier. He is thorough, detail-oriented, and relentlessly focused on delivering results. His deep, practical knowledge of Coveo and Sitecore is a rare combination, making him an invaluable partner for any challenging search or migration initiative.”

Vincent Bernard

R&D Director @ Coveo

We don’t sell any platform. We master them all.

Most agencies push the platform that pays them. We start from your needs, your budget and your team. If your current CMS can still serve you, we’ll tell you.

Explore all partners

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