Hi, I’m Guillaume
I get ambitious
businesses to
break into new markets
and global SaaS
delivered as CoS
and operated in
About
Strategy meets
execution
I’m a former Global Strategy & Innovation Lead and Chief of Staff at UKG — one of the world’s largest HR Tech companies — now based in Tokyo and working independently with tech companies and PE/VC-backed scaleups on their toughest growth challenges.
My edge is that I’ve operated on both sides of the strategy-execution divide. I’ve shaped 5-year business strategies at C-suite level, and I’ve led the execution that makes them real. If you need someone who can think at board level and still get things done on the ground, that’s where I work best.
Languages
Skills
Services
Three ways I can
work with you
International Expansion
Market entry and cross-border growth strategy for tech companies moving into or out of EMEA, APAC, and global markets.
- Market entry strategy & localisation
- Partnership development and channel GTM
- Competitive landscape & opportunity sizing
GTM Strategy & Execution
Revenue model design and go-to-market execution for scaleups — from 0-to-1 market entry to scaling what’s already working.
- ICP definition, positioning & messaging
- Sales motion design and enablement
- Partner & alliance GTM programs
- Post-merger GTM integration
Fractional Chief of Staff
Embedded strategic support for founders and C-suite — bridging vision and execution without the overhead of a full-time hire.
- OKR setting and strategic operating cadence
- Cross-functional alignment
- Exec dashboards and leadership reporting
- Board & investor materials
Selected work
Featured engagements
GTM scale-up: $9M → $20M in three years
As Chief of Staff to the EMEA Group VP of Sales, I designed and executed GTM strategies that drove 30% compound annual revenue growth — including launching and managing strategic partnerships generating over $10M in new revenue, and bridging three post-merger sales teams to unlock cross-sell and co-sell opportunities across their combined customer base.
SaaS migration framework: $400M+ in revenue impact
Built a data-driven Value Assessment methodology adopted company-wide, using each customer’s own data to build a tailored business case quantifying the benefits of migrating to the new SaaS solution — enabling 75% of legacy clients to make the switch within two years.
75% SaaS migrationCorporate strategy across four continents
Led corporate strategy and performance management engagements for $1B+ multinationals across Europe, Northern America and the Middle East — acting as a trusted CXO advisor from business development through delivery, and facilitating workshops to align strategy, KPIs and execution priorities across their organisations.
Cross-sector · Public & PrivateMarket entry strategy for a Japanese beer brand in Europe
Developed an innovative market entry strategy and operational risk mitigation plan for a Japanese beverage brand’s European expansion, influencing the decision to pursue a strategic distribution partnership — leading to record-breaking sales growth across the region.
Market entry · Strategic partnershipOrganisations I’ve had the pleasure to work with
