Deal Strategy & Commercial Negotiation

Guelsah
Dereli

The deals that matter most deserve a closer.

Enquire about working together
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Guelsah Dereli

Complex enterprise agreements don't fail on price.
They fail on structure, timing, and the room dynamics no one prepared for.

The advisor
behind the deal.

Eight years closing seven-figure enterprise deals at SAP across industrial Europe. Then three continents, a commercial venture, and a Schranner negotiation certification later — I advise companies on the deals they can't afford to get wrong.

My work sits at the intersection of commercial rigour, stakeholder psychology, and deal architecture. I don't just coach. I work alongside your team at the moments that matter — the structure conversations, the stakeholder strategy sessions, the final table.

I work with a small number of clients at a time, by design.

8+
Years closing enterprise deals at SAP
7-fig
Multi-year technology agreements
3
Continents of commercial experience
Services

Where I can help.

01
Deal Architecture & Commercial Structuring

Designing the commercial framework before you get to the table — terms, sequencing, and leverage points that hold.

02
High-Stakes Negotiation Advisory

Real-time counsel and preparation for negotiations where the margin for error is low and the stakes are high.

03
Executive Stakeholder & Buying Group Strategy

Mapping influence, anticipating objections, and preparing your team for multi-threaded enterprise buying decisions.

04
Renewal & Expansion Strategy

Protecting and growing existing contracts — approaching renewals as strategic inflection points, not routine events.

05
Cross-Functional Pursuit Leadership

Aligning sales, legal, finance, and product around a single pursuit strategy — so the right message reaches the right room.

06
Market Entry Deal Support

Advising on first-mover commercial strategy and deal structures when entering unfamiliar markets or segments.

Credentials

Recognised expertise.

Qualified Negotiator®
Schranner Negotiation Institute — the gold standard in professional negotiation certification, applied to complex commercial contexts.
SAP — Enterprise Sales, Industrial Europe
Eight years driving and closing multi-year, seven-figure technology agreements across industrial sectors in continental Europe.
Global Commercial Experience
Deep deal experience across Europe, Middle East, APAC, and South America — spanning regulatory environments, cultural dynamics, and negotiation norms.
Commercial Venture Leadership
Founded and operated a commercial venture across multiple continents, bringing a founder's accountability to every client engagement.

A small number of client engagements.
Chosen with care.

Location Singapore (relocating)

Thank you. I'll be in touch shortly.