Excellence in Executive Diagnostics

We enable individual and organizational growth through a personally appreciative, methodologically profound, and future-oriented selection and development of leaders and top executives.

Focus on Executive Diagnostics

We deliver Executive Diagnostics at the highest level. As a specialized consulting boutique, we provide robust decision-making foundations to strengthen the leadership capability—and thus the future viability—of organizations. Our long-standing relationships to our clients reflect a partnership-based, trust-driven collaboration in our role as an external sparring partner for key decision-makers. This is the standard by which we measure ourselves!

Exclusivity by focus

Our specialization in Executive Diagnostics ensures independent, well-founded decision-making at senior executive level—combining analytical depth with relevant benchmarking experience, and free from conflicts of interest related to search or development mandates.

Partnerships at eye-level

We operate according to the principle of one face to the customer. Our clients benefit from personal continuity in the collaboration, high service quality, and maximum flexibility inherent to a boutique consulting agency. In doing so, we strongly identify with the needs and priorities of our clients.

Responsibility by sustainable impact

We understand our work as a contribution to sustainable leadership and organizational success. We combine short-term delivery capability with innovative approaches and a clear focus on long-term value creation for our clients.

Our four business areas define our consulting offering.

We accompany selection and development processes for leaders and top executives. Whether it involves filling a specific role, conducting potential assessments, or supporting transformation initiatives, we enable success, growth, and future viability through Executive Diagnostics—delivered via tailored, methodologically sound, and innovative solutions.

Our boutique consultancy: Exclusive. Deeply rooted. Future-oriented.

Numbers do not tell the entire story. And yet, they reflect the experience and continuity we have built through long-standing, trust-based customer relationships—relationships you can rely on as well.

years of success in the market

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executive assessments per year

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our NPS (based on candidate feedback)

Get to know more about us!

Customer Voices

At aestimamus, people are at the center of everything we do—not only within our team and in our interactions with candidates, but especially in the way we build long-term client relationships. We approach these relationships with gratitude and humility.

When it comes to assessing our top executives, neutrality and the differentiated insights that result from it are essential to us. Methodological depth combined with pragmatism—and a clear focus on real business needs—are critical success factors. When this is complemented by interaction at eye level and the necessary independence, one is well equipped to discuss even challenging appointment decisions internally. With aestimamus, I have found a partner who has supported us very effectively for many years—above all with sustainable impact.

Vivien Schmitt
REWE Group - Head of Executive HR & Member of the Supervisory Board

Decisions made in favor of or against a candidate in appointment processes are known to have significant consequences. In order to minimize the risk of misjudgments—for both the organization and the candidate—individual assessments have long been an integral part of the selection process at SV SparkassenVersicherung. We have valued aestimamus’ professional support, which is highly tailored to both the procedural and substantive needs of our organization, for many years. This applies equally to both our field and internal functions, where we regularly rely on aestimamus’ expertise.

Michael Sauerbrunn
SV SparkassenVersicherung - Head of Human Resources

As part of our strategic alignment, we implemented a systematic people process together with aestimamus—from defining a LEIFHEIT competency model and conducting assessments of our leaders to facilitating employee workshops. In addition to diagnostic expertise, the precise alignment with LEIFHEIT’s specific context (e.g., corporate culture) and the strong, practical relevance to everyday business were key success factors for us. Building on this, a long-standing and trust-based collaboration has developed, which I value highly.

Andrea Schröter
LEIFHEIT AG - Director Human Resources

The long-standing collaboration with aestimamus has been a great pleasure for me over many years, and I highly value their consistent reliability and professionalism.

Jessica Kirch
Director Group HR Learning & Development

For us, top quality at every level and across all processes is an absolute requirement. This means that our service providers must deliver excellence even when assignments are demanding and conditions are challenging. In addition to this, aestimamus’ strong substantive foundation and expertise in top executive diagnostics are highly convincing to me. For these reasons, we greatly value the professional and at the same time personally trust-based collaboration with aestimamus.

Peter Schöler
Viega - Chief Human Resources Officer

A forward-looking and strategically aligned approach to developing our own leaders is more essential than ever for maintaining long-term agility and competitiveness. It enables the targeted development of both individual potential and organizational performance—forming a key foundation for the sustainable success of Versicherungskammer and the best possible service to our customers. With aestimamus, we have found a partner who supports us across a wide range of strategic, systematic, and future-oriented leadership development initiatives—consistently delivering profound, tailored solutions that balance conceptual depth and quality with a pragmatic, real-world focus on implementation. In our collaboration, I value the high degree of proximity, flexibility, and reliability—both professionally and personally.

Maria Lenich
Konzern Versicherungskammer - Abteilungsleiterin Personalentwicklung

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We as humans. We as a team.

Our team combines experience, consulting expertise, and professional composure with a strong passion for Executive Diagnostics. What distinguishes and unites us is our diversity. Together, we live our Culture Code in both internal and external collaboration—defined by ambition, customer focus, appreciation, teamwork, and confidence.

Get to know the team