Lead
Critical Negotiations
OSP takes responsibility before, between and after decisive negotiation rounds.
Negotiation advisory →OSP Strategy Consultants
People negotiate. Systems make success repeatable.
OSP leads critical negotiations, builds capable procurement teams, and turns hard-won experience into an organization-wide asset through Spieltektonik®.
The problem
Negotiation outcomes should not depend on individual talent.
Most organizations have the data, the training and the experience - what they lack is a closed-loop system that connects them.
Enable
Negotiation Capability
Teams develop through real situations, simulation, feedback and repeated application.
Capability building →Scale
Negotiation engine
The negotiation engine connects preparation, deal support, debriefing and measurable development.
Knowledge · Game theory
The science of other people thinking strategically.
Many people know terms such as Nash equilibrium, the prisoner's dilemma or signalling - but not what they mean for real decisions. OSP explains the theory with academic rigour, clear language and concrete cases.
01Understand the models
From dominant strategies to mechanism design - precise, without misleading simplifications.
02Experience it yourself
Interactive elements make strategic interdependence immediately visible.
03Transfer it into practice
Cases from negotiation, procurement, competition and organisations show what the theory changes in practice.
A knowledge initiative by OSP Strategy Consultants.
Strategic interactionOne game. Two rational sides.
Other side cooperates
Other side defects
You cooperate
3 / 3both gain
1 / 4you are exploited
You defect
4 / 1you exploit
2 / 2stable, but worseNash equilibrium
The other side is thinking too.A single model shows why individually rational behaviour can produce worse outcomes for everyone.
Consulting
Negotiation as a core discipline. Performance as the outcome.
01
Critical Negotiations
Price demands, contract renewals, claims, escalations and strategic dependencies.
View this service →02
Procurement
Cost transparency, tender design, category strategy and high-performing procurement organizations.
Procurement →03
Supply Management
Secure supply, shape dependencies and actively manage strategic suppliers.
Supply Management →04
Operations
Processes, organization and performance systems that hold up in execution.
Operations →SPECIAL ENGAGEMENTS
When consultancies need negotiation expertise themselves.
Management consultancies and specialized expert firms bring in OSP when negotiations decide the success of their projects.
Partnering with consultancies →Spieltektonik®
No single method wins every negotiation.
Spieltektonik® is the integrating architecture that brings together situation, evidence, behavior and dynamics.
It does not determine schematically which negotiation logic is "right", but which instruments carry in the specific situation.
Software
Negotiation experience becomes a scalable system.
The negotiation engine operationalizes selected parts of the methodology for procurement.
01
Prepare
Structure real situations and run them as a full dress rehearsal.
02
Support
Update the situation, moves and counter-moves between live rounds.
03
Debrief
Analyze moves, name the alternatives and lock in the learning.
04
Measure
Make development visible across comparable scenarios.
Knowledge ecosystem
From foundations to application.
Science, method and software remain clearly separated - and build on one another.
Science
Game theory
Foundations, models and strategic decision situations.
→
Method
Spieltektonik®
The integrating architecture of applied game theory.
→
Application
Negotiation engine
The negotiation engine for preparation, deal support and development.
About OSP
Consulting and industry experience in one expert network.
OSP Strategy Consultants was founded in Munich in 2011. For every engagement, the required expertise is assembled on a project basis.
Get to know OSPI
Leadership is alignment.
Without shared direction, even the best analysis evaporates.
II
Consensus accelerates.
Solutions only work once the key people own them.
III
Capabilities can be trained.
Organizational performance is built through systematic application.
Selected engagements
When decisions move real money.
Anonymized cases show the starting point, OSP's role and the decisive intervention.
International industrial group · plant engineering and major projects
Critical NegotiationsSupply Management
Claim and commercial-claims negotiations in an international industrial mega-project
OSP structured and steered an international commercial-claims initiative – from supplier-case prioritization to a robust distinction between opportunity, commitment and secured outcome.
Outcome
View case →Several million euros in commercial effects were secured, alongside a robust governance model separating opportunities, commitments and realized outcomes.
International industrial company · strategic component supplier
Critical NegotiationsProcurement
From supplier commitment to a robust commercial agreement
OSP moved a stalled supplier negotiation from a general commercial commitment to a multi-year agreement with clear price, bonus and volume mechanics.
Outcome
View case →A retrospective high-six-figure effect and a multi-year reduction, bonus and protection mechanism were structured and agreed.
European industrial group · multiple operating entities
Negotiation CapabilityProcurement
European procurement target operating model for an industrial group
OSP translated a fragmented procurement organization into a centre-led target model covering governance, roles, category ownership, processes, KPIs and ERP requirements.
Outcome
View case →An aligned target model with a clear transformation logic, prioritized initiatives and robust decision support for management and the ERP programme.
Accountability
Personal leadership. Systematic methodology.
OSP combines personal accountability in the engagement with a methodology that makes knowledge useful beyond individual projects.
View expert profile
Expert
Oktay Süzeroğlu
Founder and Managing Director · Negotiation strategy and procurement
Founder and Managing Director of OSP Strategy Consultants, specializing in critical negotiations, procurement performance, target operating models and systematic negotiation capability.
Critical negotiations · Procurement transformation · Cost performance · Spieltektonik® · Capability building
Critical NegotiationsNegotiation CapabilityOperations
Insights
Knowledge that improves decisions.
Practice-based perspectives on negotiation, cost truth, supply management and procurement transformation.
19. May 2026 · 3 min read
Critical NegotiationsNegotiation Capability
Critical negotiations are won before the meeting starts
Why objective, alternative, evidence, mandate and response logic must be clear before round one – and why strong negotiators do not improvise, but respond from preparation.
Read insight →4. November 2025 · 2 min read
Critical NegotiationsSupply Management
Single source does not mean negotiation powerlessness
Levers remain even without a short-term supplier alternative. The key is to decompose dependency precisely and avoid weakening the position with an implausible switching threat.
Read insight →17. June 2025 · 3 min read
Critical NegotiationsProcurement
Cost truth: how to test supplier price claims
A price increase is not a fact but a hypothesis. Break it into relevant cost drivers, volume, productivity and mix effects before negotiating the number.
Read insight →