Who We Are

One group. Three activities.
Full accountability.

The Letztec Group is a European technology holding based in Luxembourg. One contract gives you access to the full stack — innovation execution, venture creation, cybersecurity, and engineering delivery.

Group Structure

The Letztec Group

Luxembourg Holding
LETZTEC GROUP
European technology group · Luxembourg
Innovation Execution

Bartholdi Labs

AI Centres of Excellence, 90-day COREV sprints, ecosystem orchestration for enterprises, institutions and governments.

bartholdi-advisory.com ↗
Venture Creation & Capital

Bartholdi Ventures

Venture studio, spin-off services, co-investments and club deals to build and fund the next European champions.

bartholdi-advisory.com ↗
Cybersecurity

Qytos

The enterprise cybersecurity house. Sovereign security envelope for every group solution, GDPR compliant by design.

Engineering & Delivery

Bartholdi Tech · Letztec

100+ certified developers — software, AI and cloud expertise powering all three group activities.

Our services →

"Engineering, AI, cloud, cybersecurity and capital. One group, one accountability."


Innovation Execution

Bartholdi Labs

Not a consulting firm — an innovation execution platform. Bartholdi rebuilds the corporate engine first. Then adds sovereign AI as the multiplier. Working results in 90 days. One contract. One accountability.

Working AI

Adopted, not piloted.

Real agents in real workflows. Measured against real KPIs. Production-grade output at the end of every sprint.

Integrate AI to gain productivity
Fundamentals First

Engine first. AI on top.

Messaging, process, skills and cadence rebuilt first — then AI compounds the fix instead of papering over it.

Focus on the core engine
One Accountability

Mentor led. Binary outcome.

Former C-Levels embedded from day one. Demo Day at 90 days: scale or stop. No extended pilots.

Benefit from the best experts

The COREV™ Methodology — Five phases. One 90-day rhythm.

01

Vision & Roadmap

AI roadmap + fundamentals gaps, linked to real KPIs.

02

Make or Buy

Vendor-agnostic solution design. Curate or build.

03

Build & Pilot

MVP with real data, real users. Weekly mentor check-ins.

04

Adoption & Change

Cadence, messaging and skills hardwired by mentor.

05

Demo Day & Scale

Binary outcome. Scale or stop. KPIs assessed end-to-end.

Engagement Options — Calibrated after the audit, not before.

01 · ENTRY AUDIT

Dual-Track Entry Audit

Days to weeks

Senior mentors. Paid. Standalone executive view. No commitment beyond the audit.

02 · SINGLE PROJECT

Single COREV Cycle

90 days

One focused use case. One working tool. Scale or stop at Demo Day.

03 · MULTI-SPRINT

Multi-Sprint Program

2–3 cycles / 12 months

Stacked opportunities. Mentor throughout. Compounding results.

04 · ANNUAL PLATFORM

Annual Platform

3 cycles + governance

AI as a way of working. Multi-year. Extends to other departments.

Five Sovereign Sectors

🛡
Defense & Dual Use
🔒
Cybersecurity
🚗
Mobility & Energy
🏥
MedTech & Formulation
🤖
AI Across Enterprise
Visit bartholdi-advisory.com ↗

Cybersecurity

Qytos

Qytos builds cybersecurity software for modern organizations — simple to deploy, technically demanding, and focused on real risks: phishing, fraud, human exposure, and compromised communication flows.

📡

Signal Analysis

Detection, classification, and prioritization of weak signals before they become incidents.

📧

Communication Protection

Risk reduction across email, links, attachments, and impersonation scenarios.

👤

Human Risk

Clear decisions that help users take the right action at the critical moment.

🔄

Secure Workflows

Tools designed to fit existing operations without adding unnecessary friction.

First Product

Mailflair — AI-powered email protection.

Mailflair identifies phishing, impersonation, and email fraud attempts in real time. Integrated with Gmail. GDPR compliant. EU data residency.

Real-time AI analysis of every incoming email
Phishing & malware detection via NLP models
SPF, DKIM, DMARC sender verification
€2.99/month/user · 7-day free trial
Try Mailflair ↗
MAILFLAIR · Active
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Work with the Group

One contract.
The full stack.

Whether you need AI execution, cybersecurity, venture creation or engineering delivery — the Letztec Group gives you one accountable partner for the full scope.