What Stärkentrainer does

Stärkentrainer GmbH is a Stuttgart-based corporate training and personnel development consultancy founded in 2012 by Frank Rebmann. The company positions itself as Germany's first strength-oriented (stärkenorientiert) training institute, delivering personnel and organizational development services across the DACH region (Germany, Austria, Switzerland). Its core offerings are customized inhouse seminars, open enrollment seminars, 1:1 coaching (executive, rhetoric, personality, communication, and transfer coaching), team coaching, workshops, and keynote presentations, with topics spanning leadership, change management, rhetoric, presentation, sales, and customer service. The buyer base is anchored in corporate HR and L&D functions, with secondary reach into private individuals via open seminars and online courses.

The product stack is built on two proprietary pillars: "Der Stärken-Code®" (The Strength Code), a registered trademark strength assessment instrument bundled into seminars and training programs, and "KI-Transfersicherung" (AI Transfer Assurance), an AI-supported training simulation that delivers personal feedback on language and impact after training sessions. The company is also a certified provider of established assessment tools (Insights Discovery®, Insights MDI International®, persolog DISG, Belbin, 360-degree feedback) and has published a book (Stärkenbuch) to reinforce thought leadership. Distribution is primarily via direct field sales to corporate clients, supplemented by content marketing (blog, YouTube, Facebook, Instagram, Xing), SEO, and event-driven open seminars.

The business model is professional services with a recurring subscription layer. The five revenue streams are inhouse seminars (primary), coaching, open seminars, keynotes, and online learning courses (E-Learning Academy). Pricing is quote-based and not publicly disclosed, with a 10% discount for organizations sending three or more attendees to the same seminar. The company holds no external funding, maintains a six-person headcount, and operates as a bootstrapped founder-led GmbH, signaling lifecycle-stage constraints on capital and scaling speed.

Name

Stärkentrainer

Legal name

Stärkentrainer GmbH

Website

https://staerkentrainer.de

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Stärkentrainer GmbH is a Stuttgart-based strength-oriented corporate training and coaching consultancy founded in 2012, serving DACH enterprises with inhouse seminars, coaching, workshops, and proprietary assessments including the AI-supported Stärken-Code® transfer tool.

Ownership category

akta.pro rank

Product category

Corporate Training and Coaching Services

NAICS

Human Resources Consulting Services (541612), Management Consulting Services (54161)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Organization Design & Change Management Consulting (BPAHACAD)

akta.pro secondary industries

Change Management & Transformation Consulting (BPAHAGAC), Organization Design & Operating Model Consulting (BPAHAGAB), Psychometric Test Publishing & Norming / Validation Services (BPACAMAG)

Keywords

• Corporate training services
• Executive coaching
• Leadership development
• Organizational development
• Change management consulting

Headquarters

HQ city

Stuttgart

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Inhouse Seminare (Inhouse Seminars): Customized training programs delivered at client company locations or online. Programs cover topics including leadership, change management, personality development, rhetoric, presentation, moderation, sales, and customer service. Constitutes the primary revenue stream.
2. Coaching Services: Individual 1:1 coaching services including executive coaching, rhetoric coaching, communication coaching, personality coaching, and transfer coaching. Delivered both in-person and online.
3. Offene Seminare (Open Seminars): Public training seminars open to participants from various companies or private individuals. Topics include conflict management, rhetoric training, time management, stress management, strength training, and argumentation training. Small group sizes with experience exchange.
4. Vorträge (Presentations/Keynotes): Motivational and inspirational presentations delivered in-person or online by Frank Rebmann. Designed to provide immediate, actionable impulses for audiences.
5. Online Learning Kurse (Online Learning Courses): E-learning courses for companies and private individuals. Includes the E-Learning Academy for corporate learning programs.
6. Potenzialanalysen (Potential Analyses): Various assessment tools including Insights Discovery, DISG, Insights MDI, Belbin team roles, 360-degree feedback, and the company's own Stärkentest/Stärken-Code professional assessment.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels8 records

Core offering

Stärkentrainer delivers customized inhouse corporate seminars, open enrollment seminars, executive and team coaching, workshops, and change management consulting built around a proprietary strength-based methodology. The firm serves corporate clients across the DACH region with topics spanning leadership, change management, communication, rhetoric, presentation, sales, and personality development, and supplements in-person delivery with an online learning academy and an AI-supported transfer assurance system (KI-Transfersicherung). Diagnostic offerings include the registered Der Stärken-Code® strength assessment alongside certified third-party instruments such as Insights Discovery®, Insights MDI®, DISG, Belbin, and 360-degree feedback.

Product overview

Stärkentrainer GmbH is Germany's first strength-oriented training institute (since 2012), offering a comprehensive portfolio of corporate training and development services. The core offerings include Inhouse Seminare (customized company seminars) and Offene Seminare (open enrollment seminars) covering leadership, change management, rhetoric, presentation, sales, and customer service. These are complemented by Coaching services (executive, rhetoric, personality, communication, and transfer coaching), Teamcoaching, and Workshops. The company provides Potenzialanalysen (potential analyses) using established methodologies like Insights Discovery®, DISG, Insights MDI, Belbin, and 360-Degree Feedback, alongside the proprietary Der Stärken-Code® personality assessment. Online Training extends reach through virtual seminars, coaching, and e-learning courses. A distinctive feature is the KI-Transfersicherung (AI Transfer Assurance) providing AI-supported training simulations with personal feedback on speech and impact. Change Management consulting and organizational development services round out the offering for comprehensive human resource and organizational development.

Differentiator

Problem solved

Functional benefit

Products and services

• Inhouse Seminare (Inhouse Corporate Seminars) Customized corporate seminars delivered at client locations or online, covering leadership, change management, personality development, rhetoric, presentation, moderation, sales, and customer service. Designed for multiple employees or executives within a company.

Quantifiable outcome

• Reduced employee sick days through improved team satisfaction and cohesion
• +1 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Insights Discovery®coreTechnology or IntegrationCertified provider of Insights Discovery® personality assessment system, integrated into potential analysis offerings. The tool helps identify personal strengths, potentials, and potential blind spots.
• Insights MDI International®coreTechnology or IntegrationProvider of Insights MDI International® assessment tools for organizational and personal development, part of the company's potential analysis portfolio.
• persolog DISGcoreTechnology or IntegrationProvider of the persolog DISG personality model for behavioral assessment and development, used in team and individual coaching.
• Belbin Team RolescoreTechnology or IntegrationProvider of Belbin team role assessments for identifying team member strengths and improving team composition and collaboration.
• Tagungshotels/Konferenz-CenterminorChannel Partner/ Reseller/ DistributorSelected conference hotels and conference centers used as venues for open seminars. The AGB document references partnerships with selected venues for seminar delivery.

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Haufe Akademie: Haufe Akademie is one of Germany's largest corporate training and personal development providers, offering seminars, inhouse programs, e-learning, and certifications across leadership, change, and soft skills — directly comparable to Stärkentrainer's inhouse and open seminar portfolio in the DACH market.
• Kienbaum: Kienbaum is a leading German HR and leadership consulting firm offering executive coaching, leadership development, and organizational consulting — directly overlapping with Stärkentrainer's coaching, leadership training, and change management offerings in the same DACH enterprise segment.
• osb international: osb international is a Berlin-based consultancy specializing in organizational development, change management, and leadership programs — directly comparable in methodology (transformative change, team, and leadership work) and in DACH enterprise clientele to Stärkentrainer.
• persolog (DISG): persolog is the publisher of the DISG personality model used by Stärkentrainer; it operates its own training, certification, and consulting ecosystem, making it both a tool provider and an adjacent competitor in personality-based training.
• Insights Germany (Insights Discovery®): Insights is both a technology partner of Stärkentrainer (licensed provider of Insights Discovery®) and a direct competitor, offering personality assessment, training, and coaching products through its own certified practitioner network globally.
• Görtz + Lewandowski: Görtz + Lewandowski is a German consultancy focused on organizational development, change management, and leadership programs — directly comparable as a boutique DACH competitor with overlapping change and leadership service lines.

Broad incumbents

• zeb.consulting: zeb is a large European management and strategy consultancy with significant transformation and leadership practices that compete for change and organizational development mandates at enterprise clients across DACH.
• Haufe Group: Haufe Group is a large German media and services conglomerate whose Haufe Akademie and related HR, tax, and legal content divisions broadly compete with Stärkentrainer in enterprise learning and people development, but with much wider product breadth.
• McKinsey Germany (McKinsey & Company): McKinsey's German offices run large-scale organizational, leadership, and transformation engagements that overlap with Stärkentrainer's change management and leadership development work, though typically at much larger enterprise scale and price points.

Emerging players

• CoachHub: CoachHub is a digital coaching platform headquartered in Berlin that delivers AI-enabled executive and team coaching at scale, increasingly competing with boutique firms like Stärkentrainer on digital coaching subscriptions and AI-driven training reinforcement.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCEyA2Hy45Ff1TstOBCFVzjQ
• Facebookfacebook.com/staerkentrainer
• Instagraminstagram.com/staerkentrainer
• LinkedInlinkedin.com/company/st%C3%A4rkentrainer

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Stärkentrainer