Rosenbaum Nagy

What Rosenbaum Nagy does

Rosenbaum Nagy (legal entity: rosenbaum nagy unternehmensberatung GmbH) is a privately held German management consulting firm founded in 1997 in Cologne by Dr. Michael Rosenbaum and Attila Nagy. The firm specializes in the German social economy (Sozialwirtschaft), serving welfare associations, disability and elderly care providers, rescue services, and child and youth welfare organizations, alongside adjacent practices in health insurance (Krankenkassen), sport federations and events, SME Mittelstand companies, and the public sector. Its primary service lines span strategy and business field development, marketing and sales, controlling and corporate steering, organization and processes, HR, digitalization and AI, data management, restructuring and crisis management, workforce scheduling, change management, innovation management, interim management, and M&A advisory. Proprietary methodologies include the rn-DigitalRoute digital transformation framework, the StrategieSprint compressed strategy program, the "Verl\u00e4ssliche Dienstplanung 2.0" workforce scheduling concept, and the "Mehrwert durch Daten" data management framework; client workshops are delivered via tools such as Miro. There is no proprietary software product; technology is used to enable consulting delivery rather than sold or licensed to clients.

The firm operates a complementary executive search and interim management placement capability and runs public seminars for the social economy sector. It is owned and managed by five geschäftsführende Partner: founders Dr. Michael C. Rosenbaum and Attila Nagy, plus Sandra Winter (partner since 2012), Dominique Neumann (partner since 2023, MD of subsidiary since 2008), and Carsten Effert (partner since 2023). A wholly-owned subsidiary, rosenbaum nagy management & marketing GmbH, extends service capacity in management and marketing. GTM is exclusively direct and relationship-based, with named partner email addresses and a central office intake; the firm cites 5,000+ completed consulting projects over 29 years as evidence of established relationships with all major German welfare associations and large health insurers (IKK classic, AOK, Barmer, Techniker Krankenkasse), national sport bodies (DFB, DBS, DSV, Landessportbund NRW), and public sector clients (Stadt Köln, Ministerium für Arbeit NRW). Marketing is multi-channel: organic content across LinkedIn, Xing, Instagram, Facebook, and a YouTube channel featuring a "Sozialminute" expert series, supported by a quarterly newsletter distributed via Brevo (formerly Newsletter2Go) and long-tenured sports event sponsorships.

Revenue is generated through project-based professional service fees for consulting engagements, fee-based executive search, and seminar attendance revenue. Pricing is not publicly disclosed and is negotiated per engagement; contractual structures include multi-year mandates (e.g., a four-year reorganization engagement with Stiftung St. Franziskus Heiligenbronn). Distribution is exclusively direct, with no reseller, marketplace, or self-serve channel. The firm has no external investors, no disclosed funding rounds, no disclosed revenue figures, and operates out of a single headquarters at Lichtstraße 25 in Cologne-Ehrenfeld.

Name

Rosenbaum Nagy

Legal name

rosenbaum nagy unternehmensberatung GmbH

Website

https://rosenbaum-nagy.de

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Rosenbaum Nagy is a Cologne-based German management consulting firm founded in 1997, advising welfare associations, healthcare insurers, sport federations, public sector bodies, and SMEs on strategy, digital transformation, HR, controlling, M&A, and interim management.

Ownership category

akta.pro rank

Product category

Management Consulting

NAICS

Administrative Management and General Management Consulting Services (541611), Management Consulting Services (54161), Professional, Scientific, and Technical Services (54), Other Management Consulting Services (541618)

SIC

Services-Management Consulting Services (8742), Services-Management Services (8741)

akta.pro primary industry

Turnaround, Restructuring & Crisis Management Consulting (BPAHACAO)

Keywords

• Management consulting services
• Social economy consulting
• Digital transformation consulting
• Interim management services
• Healthcare consulting

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Management Consulting Services: Project-based professional consulting engagements across strategy, digital transformation, HR, controlling, organization, crisis management, and interim management. Engagements are typically multi-month projects with named partners and senior consultants managing delivery. Revenue is earned through professional service fees, typically structured as project contracts or retainer arrangements.
2. Seminars and Training: The firm offers seminars for the social economy sector, including public seminars listed on the website. Revenue generated from seminar fees.
3. Executive Search: Support for filling leadership positions for social economy clients. Marketed as a distinct service offering, suggesting fee-based placement or search services.
4. Interim Management: Interim managers take on operative leadership responsibility at client organizations (first and second management levels). The firm operates an interim management network and also places its own consultants in interim roles.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels9 records

Core offering

Rosenbaum Nagy is a management consulting firm delivering project-based advisory services across strategy, digital transformation, HR, controlling, organization, crisis management, and interim management. Its core focus is the German social economy (Sozialwirtschaft), with additional practice areas in healthcare, sport, public sector, and SMEs. Service delivery is partner-led and tailored to welfare associations, health insurers, sports federations, and public institutions, complemented by seminars, executive search, and an interim management network.

Product overview

Rosenbaum Nagy is a management consulting firm offering a portfolio of consulting services rather than a unified software product. The core offerings include strategic consulting (StrategieSprint), digital transformation frameworks (rn-DigitalRoute), operational consulting (Verlässliche Dienstplanung 2.0, Aufbau Unternehmenssteuerung), data management, M&A advisory, interim management, executive search, and training seminars. Services are delivered through consulting engagements rather than software licensing, with digital collaboration tools (Miro) used to facilitate remote collaboration during engagements.

Differentiator

Problem solved

Functional benefit

Brands

• rn-DigitalRoute: A low-threshold approach for digital transformation of social economy organizations, providing structure, transparency and sustainability in digital transformation.

Products and services

• StrategieSprint

Quantifiable outcome

• 5,000+ consulting projects completed
• +2 more outcomes

Named customers22 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature4 records

Partnerships

Five partnerships are on record, tiered minor.

• Rund um KölnminorGTM or Marketing Partner · 1 January 2019Since 2019, Rosenbaum Nagy has been a sponsor and partner of the Rund um Köln cycling classic, supporting marketing, VIP reception, and sponsorship management. Staff members also participate as amateur riders.
• Köln TriathlonminorGTM or Marketing Partner · 1 January 2019Since 2019, Rosenbaum Nagy has partnered with Köln Triathlon as part of its sports sector advisory and sponsorship activities.
• diabetesDE – Deutsche Diabetes-HilfeminorStrategic or Co-development Partner · 1 January 2011Dr. Michael Rosenbaum is a member of diabetesDE – Deutsche Diabetes-Hilfe since May 2019 and founded the Diabetes Programm Deutschland in 2011. The firm actively supports the FC Diabetologie charity football initiative, which pits people with diabetes and experts against politicians to raise awareness for diabetes and prevention.
• Generali Köln MarathonminorGTM or Marketing Partner · 1 January 2005Rosenbaum Nagy has been a sponsor and marketing partner of the Generali Köln Marathon since 2005, providing sponsorship and marketing support for one of Germany's major running events.
• Schomerus (Hamburg)minorImplementation/ SI/ Consulting PartnerSchomerus is a legal firm from Hamburg serving as a cooperation partner for M&A consulting engagements. For over 20 years, Schomerus has been handling tax, labor, and corporate law matters within the due diligence process for acquisitions, providing legal and tax due diligence alongside Rosenbaum Nagy's commercial and financial advisory services.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• KPMG Germany: Big Four professional services firm with a substantial German consulting practice serving health insurers, public sector, and large welfare organizations — overlapping client base but as part of a much broader audit/advisory/consulting portfolio.
• Porsche Consulting: German-origin management consultancy with broad transformation, digital, and operational expertise. Competes for similar enterprise transformation work but operates at greater scale and across a wider industrial portfolio.
• Roland Berger: Leading European-origin strategy consultancy with a strong German practice. Competes for the same large transformation mandates in healthcare and public sector but operates at significantly larger scale across many industries.

Direct peers

• mc-quadrat: German management consultancy with a long-standing focus on social economy and non-profit organizations. Closely comparable niche positioning to Rosenbaum Nagy's welfare association practice.
• h&z Unternehmensberatung AG: Munich-headquartered management consulting firm focused on strategy, transformation, and operational excellence. Comparable mid-sized German consulting profile with overlapping capabilities in restructuring and performance improvement.
• zeb consulting GmbH: German strategy and management consultancy with deep specialization in financial services, including statutory health insurers (Krankenkassen) — overlapping with Rosenbaum Nagy's health economy vertical and similar consulting depth.
• Cassini Consulting GmbH: German consulting firm focused on restructuring, turnaround, and transformation — direct overlap with Rosenbaum Nagy's Sanierung/Krisenmanagement practice and comparable mid-sized positioning.
• contec Gesellschaft für Organisationsentwicklung mbH: German management consultancy specializing in social and healthcare economy transformation, organizational development, and digital strategy for welfare providers — directly comparable verticals and service portfolio to Rosenbaum Nagy.
• Kienbaum Management Consultants: German management and executive consulting firm where both founders (Dr. Rosenbaum, Attila Nagy) worked prior to founding Rosenbaum Nagy in 1997. Overlapping practice areas in HR, transformation, and executive search, with comparable mid-market positioning.
• Staufen AG: German operational excellence and transformation consultancy serving Mittelstand and process industries. Comparable as a mid-sized German consulting brand with overlapping transformation and lean operating model capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/RosenbaumNagy
• YouTubeyoutube.com/channel/UCkbCqyCpHuuwvfTZ_AaaJbA
• Facebookde-de.facebook.com/rosenbaumnagy
• LinkedInlinkedin.com/company/rosenbaum-nagy
• Instagraminstagram.com/rosenbaum_nagy

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rosenbaum Nagy