Turning European market challenges into growth opportunities
A boutique consultancy founded by five operators across AI, engineering, finance, energy and industrial systems — helping companies enter, scale and transform within Europe.
Most consultancies give you frameworks. We give you operators.
Six practice areas from project valuation and compliance through to strategy, deep tech and AI.
Construction and infrastructure, mobility, energy, financial services, healthcare and private capital.
Eight documented engagements with named clients, real numbers and the partner who ran them.
Six practice areas. One integrated team.
Project valuation, market research & planning
Investment cases, feasibility and capital sequencing for engineering-heavy projects — plus the process automation to run them. From $400M joint-venture economics to a 2.25 MWp energy pipeline.
- —Investment cases, ROIC and scenario modelling
- —TAM sizing, demand and site prioritisation
- —Value engineering and lean procurement
- —Process automation across project controls
Compliance & data governance
GDPR, ISO 27001 and EU AI Act readiness for companies whose data is regulated twice over — in energy, healthcare and financial services. Compliance treated as a sales unblocker, not paperwork.
- —GDPR gap analysis and remediation roadmap
- —ISO 9001 / 27001 readiness assessment
- —Sector rules: QCS, NFPA, IFRS/HGB, MDR
- —Privacy-by-design review for AI systems
Strategy & corporate finance
MBB-grade problem structuring without the MBB overhead: market entry, portfolio choices and financial structuring, run by people who have sat inside Hyundai, LG and EY on the same questions.
- —DACH and EU market entry strategy
- —Branch vs. subsidiary vs. JV structuring
- —Financial modelling, FX and treasury frameworks
- —Due diligence support for M&A and partnerships
Technology & deep tech
Advice on technologies we have actually built: autonomous driving stacks, robotics, sensor systems, audio AI infrastructure and diagnostics platforms. Technical due diligence that survives an engineer’s questions.
- —Technology scouting and landscape analysis
- —ADAS/AD, robotics and simulation programmes
- —Technical due diligence for investors
- —Deep-tech venture and product strategy
Digital transformation & AI
AI readiness, workflow automation and agentic use-case prioritisation, scored on commercial demand and technical feasibility at the same time — then implemented and handed over to your team.
- —AI opportunity map with ROI per use case
- —LLM agents, RPA and document processing
- —Vendor selection and SaaS rationalisation
- —Change management and adoption programmes
Research, innovation & R&D
Pilot design, university partnerships and grant strategy from partners who have administered federal research budgets and led R&D at Hologic, IAV and TU Berlin.
- —Innovation maturity assessment
- —Pilot programme design and KPIs
- —Horizon Europe and national grant support
- —University and institute partnerships
Industries where we have real operational depth
Building materials, construction & infrastructure
Owner-side engineering and commercial control on large capital projects — design-to-value workflows, BIM coordination and variation management on programmes up to $152M.
- —Design management and clash-free BIM coordination
- —Value engineering and lean procurement
- —Variation and claims strategy
- —QCS, NFPA and local code compliance
Mobility & automotive
From autonomous driving stacks integrated into test vehicles through to the joint-venture economics behind a plant — the engineering and the investment case in one team.
- —ADAS/AD software integration and validation
- —EV and charging infrastructure planning
- —Production-mix and FX scenario modelling
- —New mobility business-line strategy
Financial services
Delivery and control for regulated institutions: branch network build-out, reporting alignment across accounting regimes, and diligence support on transactions.
- —Branch and retail network delivery
- —IFRS and HGB reporting alignment
- —Treasury and FX frameworks
- —Commercial and technical due diligence
Energy & industrials
Where AI meets plant reality — agentic use-case prioritisation for industrial digital products, renewable pipeline development, and process optimisation on the floor.
- —Agentic AI use-case prioritisation and ROI
- —2.25 MWp renewable pipeline development
- —Process and throughput optimisation
- —EU energy data and reporting compliance
Healthcare & life sciences
Diagnostics venture building under regulation: validation strategy, clinical networks and the AI orchestration that has to be HIPAA-safe before it goes near a patient record.
- —Clinical validation and de-risking gates
- —MDR and ISO 13485 readiness
- —Clinical partner and KOL networks
- —Compliant AI pipelines for patient data
Private capital
Investor-side and founder-side of the same table: technical due diligence engineers cannot talk you out of, and the staged de-risking plan that makes a round fundable.
- —Technical and commercial due diligence
- —Investment readiness and round scoping
- —Staged de-risking and milestone design
- —Post-investment value creation plans
Real clients. Named numbers.
Engineering transformation on a $152M aviation accommodation complex
Owner-side design and commercial control across a 61,019 m² residential development for Qatar Airways Group, where every drawing revision carried six-figure site consequences.
Full-stack autonomous driving moved out of simulation and into two test vehicles
A next-generation urban mobility platform had an autonomous driving stack that performed in simulation and had never been integrated into a production-representative vehicle.
Cutting twenty candidate AI use cases down to the six worth building
Three digital product teams inside a global energy technology business had twenty proposed agentic AI applications, no shared way to compare them, and no budget to build all of them.
Restructuring a $400M automotive joint-venture investment case
A proposed manufacturing joint venture cleared its strategic rationale and failed its returns test. Headquarters would not approve it, and the local partner would not restructure without a reason.
An investment-ready validation strategy for a liquid-biopsy diagnostics venture
A diagnostics venture with two credible product concepts and promising early data needed to become fundable — which meant sequencing scientific risk, not just presenting it.
ProfitScout: turning a live market into clear, real-time trading signals
An AI-driven stock screening and market-intelligence platform built from the ground up — real-time charting, intelligent scanners and live signals for intraday and swing traders.
Replacing a prototype backend with a production-grade AI call pipeline in 12 weeks
An AI voice platform for home service businesses had paying customers and a Series A four months out — on infrastructure that could not survive either.
Unblocking a sixty-day AI stall in a five-day sprint
A three-agent clinical document pipeline worked in the demo and failed in production. Six failure modes had held it back for two months.
We are not advisors who study your problem. We are operators who have lived it.
Native-level regulatory and cultural fluency across Armenia, Italy, South Korea, Turkey and India — the exact corridors into Europe.
Electrical, mechanical and AI systems depth alongside finance, strategy and go-to-market — in the same room, on the same engagement.
No vendor relationships, no referral fees, no implementation partners to protect. Our advice is driven purely by your outcomes.
Five experts. Zero generalists.
Each partner is the leading voice in their domain — infrastructure, energy, AI, automotive innovation and corporate finance. When you work with G5, you get all five.

Electrical engineer turned owner-side project lead, with more than $150M of el…

Nanotechnology and physics engineer who led R&D programmes at Hologic in Paris…

CEO of Decrackle, an audio AI infrastructure company, and founder of Kuvaka Te…

RWTH Aachen engineer, R&D engineer at IAV GmbH and research associate at TU Be…

Finance project manager at Hyundai Motor, product planning at LG Electronics a…
A structured process, a measurable end
Understand your business
A 45-minute discovery call — no pitch, no deck — to align on the problem and what success actually looks like. If we are not the right team, we say so.
Build a custom strategy
We map the right partners to your problem and build from your context — your constraints, your market, your data — not from a template library.
Deliver & transfer results
We implement and optimise, then hand over full documentation so your team owns the outcome. No dependency, no retainer by default.
Ready to take your business into Europe?
Whether you are entering the market for the first time, navigating compliance, or transforming how your operations run — start with a conversation.