Human Impact. No Slides.
Impact-focused advisory for foundations and organisations delivering real-world results
Real change does not emerge from concepts alone. It grows where people take responsibility, build trust and turn ideas into action. Koller Impact Consulting supports organisations, foundations and teams on their journey from strategy to implementation – honest, pragmatic and always centred on people.
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My Approach
Impact that lasts
I believe in consulting that does not stop at PowerPoint.
People, structures and partnerships come first – not processes for their own sake.
Whether it is project implementation, team development or operational support for foundations: I work with you as a partner, with respect, pragmatism and a clear goal in mind – sustainable impact on the ground.
Services
From strategy to implementation – with impact
I support you where impact becomes tangible:

Project support on the ground
From localisation to evaluation – I accompany projects that create real, lived impact where it matters most.

Leadership advisory & coaching
I support leaders and teams in taking responsibility and shaping change with clarity and confidence.

Operational support for foundations
I work with boards and foundation councils through solid analysis, evaluations and hands-on implementation on the ground.
Work Process
How We Work Together
Get in touch
Book a non-binding introductory call or contact me directly:
Initial conversation (free of charge)
In a 20-minute conversation (online or in person), we clarify your needs and identify the most suitable form of collaboration.
From strategy to action
Together, we implement the agreed approach and work hands-on towards achieving your goals – online or on site.
References & Impact
Experiences that matter – results that last
Every collaboration tells a story of responsibility, courage and sustainable impact. A selection:

Acasus
Afghanistan
Advisory support for outreach monitoring and demand generation.

Loyola-Gymnasium
Kosovo
Leadership and establishment of a dual vocational education programme in mechatronics.
ForAfrika
Angola / Switzerland
Fundraising stabilisation and on-site evaluation of a school feeding programme.

miva Schweiz
Switzerland
Project commission member – impact-oriented project evaluation.

UnuMondo
Switzerland
Language and integration coaching – building bridges through communication.
About
Honest. Human. Effective.

I am convinced that real change happens where mindset and action meet.
With many years of experience in international cooperation, leadership development and project implementation, I combine strategic thinking with pragmatic execution.
My approach is simple: listen, understand, shape together.
FAQ
Do you have any questions?
Koller Impact Consulting supports NGOs, foundations and social organisations that want to build effective programmes and strong teams. The firm works with organisations that seek to develop leadership, optimise structures and strengthen local partners. In addition to large foundations, Koller Impact Consulting also supports smaller associations, social enterprises and funding organisations.
Koller Impact Consulting advises on leadership, organisational development, localisation as well as youth and vocational education. In addition, the firm offers operational support to boards of trustees – from reviewing project proposals through preparing meetings to accompanying funding decisions. Koller Impact Consulting also undertakes monitoring and evaluation of projects at home and abroad.
Alongside strategic advice, Koller Impact Consulting reviews proposals and dossiers, prepares meetings and accompanies decision-making processes. This relieves boards of trustees and ensures that funding decisions are taken transparently, based on evidence and focused on impact.
Koller Impact Consulting believes in “Human Impact – no slides.” Change happens when people take responsibility, build trust and turn ideas into action. Drawing on practical experience in humanitarian aid, education and international cooperation, the team works pragmatically, clearly and always with an eye on real impact. Instead of bombarding clients with slides, Koller Impact Consulting focuses on workshops, coaching and joint processes. Humour and empathy are part of the company’s DNA, as is the willingness to ask tough questions.
Every engagement starts with a non‑binding initial conversation to clarify goals and parameters. Koller Impact Consulting then develops tailor‑made steps, ranging from short workshops to multi‑year accompaniment. The team works hands‑on and collaboratively; strategies are crafted together with clients and their teams. This co‑operative and practical approach reflects widely accepted best practice in non‑profit consulting.
Based in Thalwil near Zurich, Koller Impact Consulting feels at home wherever people are committed to making a difference. Projects have taken the team to Eastern Europe, Asia, Africa and Latin America. Consultations are offered in German, English and French. Years of working abroad mean the firm understands cultural differences and builds bridges between North and South.
Yes. In addition to traditional consulting, Koller Impact Consulting offers leadership coaching, team retreats and workshops. The team trains groups in project management, intercultural collaboration and impact orientation. This blend of consulting and training reflects common practice among successful advisory firms, which use coaching and tools to strengthen teams.
Fees are determined based on scope, complexity and duration of the engagement. After the initial conversation, clients receive a transparent proposal with a description of services and either a flat fee or a daily rate. For smaller organisations and long‑term partnerships, Koller Impact Consulting offers tiered pricing and always looks for fair solutions. It matters that the investment leads to measurable value.
Koller Impact Consulting focuses on capacity building and participation: instead of short‑term “fire‑fighting,” the team helps groups develop their own solutions. It works closely with local partners, draws up monitoring and evaluation plans, and accompanies implementation. This ensures that successes are embedded for the long term and do not depend on individual personalities.
The article “5 Essential Questions Nonprofits Should Ask When Hiring a Consultant” notes that consulting approaches are often shaped by implicit assumptions. Koller Impact Consulting’s approach is based on the belief that financial indicators alone do not determine an organisation’s success. The team questions established models and develops solutions tailored to the mission, culture and context of each organisation. Instead of strengthening hierarchies, Koller Impact Consulting promotes participatory structures and trust.
Many experts note that consultancies often focus too heavily on the perspective of funders. Koller Impact Consulting ensures that voices from the grassroots and communities are equally integrated. When developing strategies, the team analyses funder requirements but consistently aligns them with the needs of target groups, working out informed compromises. This produces recommendations that reflect both the organisation’s mission and funders’ expectations