Business-model transformation
Shift from in-house manufacturer to a lean sales and order-fulfilment business: purchasing centralised, a new ERP system introduced, KPI reporting built.
40%Reduction in operating costs
What the numbers prove.
20+Years in leadership
€3.5mDocumented savings
40%Cost reduction in turnaround
4ERP projects led
What drives me.
I'm a commercial and operational leader in the industrial Mittelstand — with the commercial perspective that purely technical management rarely brings. What drives me is steering companies safely through times of upheaval: streamlining structures, cutting costs, getting processes to run.
Over more than three decades I've led purchasing, production and logistics and, as a two-time managing director, carried full commercial and operational responsibility: restructuring, building controlling functions and four ERP rollouts that held.
As a certified AI Manager (IHK), I judge AI soberly: I say what pays off in a business and what doesn't. I speak the language of the boardroom as fluently as that of the shop floor — grounded, not from an ivory tower.
Eight disciplines of integrated management.
Overall commercial management
Restructuring & transformation
Strategic purchasing & sourcing
Controlling & liquidity planning
ERP rollout & digitalisation
Leadership & team management
Supply chain management
AI in the Mittelstand
Three projects with measurable results.
Building an international supplier network
Strategic purchasing and global sourcing with over 100 suppliers across 8 countries, plus lean optimisation (stock −30%, lead times −45%) over ten years.
€3.5mDocumented savings
Co-founding & building a trading company
A trading company for medical consumables (hospitals, B2B/B2C): built every commercial structure, finance and sales function from the ground up.
€1m+Annual revenue built
Approach
Complexity gets expensive when nobody makes it visible. That is exactly where I start.
Ismail Dönertas
Methods I actually use.
Controlling & management
My core strength: KPI cockpit, contribution margin, liquidity, cost-out.
Learn more →Change management
Kotter, Lewin, stakeholders, resistance: change that lasts.
Learn more →AI governance
Introducing AI safely: EU AI Act, GDPR/DPIA, RACI.
Learn more →Project management
Scrum (certified PO), Stacey matrix, Kanban, MVP.
Learn more →Three decades in the industrial Mittelstand.
01/2026 – present
Kingline GmbH
Commercial Director (Interim)Commercial steering within an investment group of seven subsidiaries — balance sheets and annual accounts for the holdings, strategic concepts and recommendations for the management, safeguarding commercial continuity through handover and transformation phases.
12/2023 – 12/2025
Protec Maschinen & Formenbau GmbH, Röttenbach
Managing Director · Commercial Lead & OperationsFull commercial and operational responsibility for a manufacturing company (machine & mould making, approx. 10 employees) in turnaround and transformation. Shift from in-house manufacturer to a lean sales and order-fulfilment business with outsourced production.
- Cut monthly operating costs by 40% through strategic purchasing and process optimisation.
- Selected and introduced a new ERP system (Xentral) and KPI-based reporting.
- Orderly handover to the successor structure — the company is still operating today.
09/2020 – 12/2022
TI-Global GmbH, Walldürn
Managing Partner (Co-founder)Co-founded and operationally built a trading company for medical consumables (mainly hospitals, B2B/B2C). Built every commercial structure from the start — finance, liquidity, sales and an ERP rollout (Xentral). Wound down at the end of 2022 for personal reasons.
- Grew to over €1m in annual revenue and a team of around 6.
12/2009 – 07/2020
Goldschmitt techmobil GmbH, Walldürn
Head of Purchasing, Production & LogisticsOperational leadership of purchasing, production and logistics, deputising for the management with power of attorney — 24 employees at the main site, plus supply chain across two further plants. In parallel, around five years of corporate controlling including the auditor interface; ERP rollout (PSI Penta) as super key user.
- Savings of approx. €3.5m — an international network of over 100 suppliers across 8 countries.
- Stock −30%, lead times −45% through value-stream analysis and lean.
- SOX-compliant process landscape across the entire supply chain.
07/2020 – 08/2020
OWR GmbH, Rittersbach
Head of PurchasingAnalysis of purchasing and supplier structures and development of a restructuring concept during a critical company phase.
09/2006 – 05/2009
Fahrzeugbau Meier GmbH, Altdorf bei Nürnberg
Technical Buyer & Warehouse ManagerTechnical purchasing and warehouse management in special-vehicle construction (approx. 60 employees). Initiated and led the ERP rollout (Miclas X) including shop-floor data capture, plus a complete reorganisation of warehouse and logistics.
09/1993 – 09/2006
Hans Brochier GmbH & Co. KG, Schwaig bei Nürnberg
From apprentice to department head (13 years)A specialist civil-engineering, pipeline and plant-construction firm (approx. 1,300 employees). Dual apprenticeship (vehicle mechanic + commercial clerk), rising to a department-level leadership role responsible for technical purchasing. A several-month assignment in Jordan — English as the working language.
Training & education
Lifelong learning.
AI Manager (IHK)
Agile Heroes / TomorrowFirst · 2026 · AI strategy · prompting · AI-supported process optimisation
Result 98.33%
Product Owner (Scrum)tomorrow first Certification Institute · 2026
Business administration (further education)Studiengemeinschaft Darmstadt · 2016 – 2018
Project management / Lean managementHolz Consulting · 2016
Warehouse manager, modules 1+2TÜV Saarland, Nürnberg · 2002
Apprenticeship
Office communications clerk (IHK)Hans Brochier GmbH & Co. KG · 1997 – 1999
Vehicle mechanic (IHK)Hans Brochier GmbH & Co. KG · 1993 – 1997
Languages & IT
Three languages, one toolkit.
Languages
German · NativeTurkish · NativeEnglish · C1
AI tooling (hands-on)
OpenAI/GPTClaudeGeminiPrompt engineering
AI automation
n8n (multi-agent workflows)RAGMake/Zapier
AI governance
EU AI ActGDPR
ERP & Office
4 ERP rolloutsMicrosoft 365Excel (KPI reporting)
Contact
Let's talk about your role.
Looking for a commercial and operational leader who knows the Mittelstand and judges AI realistically? Then let's talk — ideally directly, by phone or email.
Emaildoenertas@gmail.com
Phone+49 176 43967427
LinkedInismail-doenertas
Location91352 Hallerndorf, Germany