Tantum GmbH

What Tantum GmbH does

Tantum GmbH is an Austrian private consulting firm, founded in 2019 and headquartered at Grabenweg 72 in Innsbruck, that specializes in strategic and digitalization advisory for family-owned businesses, SMEs, and startups across the DACH region (Austria, Germany, Switzerland). The firm positions itself as a sparring partner rather than a traditional consultant, targeting non-delegable decisions — succession planning, business transformations, M&A/MBO/spin-offs, and leadership changes — for owner families and entrepreneurs who require peer-level engagement. The founder, Bernhard-Stefan Müller, is the managing director and primary service principal, bringing 25 years of entrepreneurial experience, 15+ companies founded, and approximately €315M in claimed corporate value created across those ventures; a second team member, "Hermann," is disclosed on the website. The firm reports an employee headcount band of 11-50.

The service portfolio is delivered entirely through human advisory engagements and is organized around five explicit practice areas: BSM Family Business Board™ (a trademarked, structured advisory board for family business succession and governance — the firm's primary differentiated offering), Transformation (business model restructuring, cashflow improvement, scaling, financing & structuring, value enhancement), Startup & Scaleup (business sparring, business plans, due diligence preparation, investor readiness, pitch decks), Unternehmensentscheidungen (company acquisition, sale, succession, MBO, spin-offs), and Führung & Eigentümer-Ebene (CEO, owner, and CFO sparring). There is no software product, platform, or API surface; underlying "technology" is a proprietary advisory methodology rather than a code base. The firm has received multiple third-party recognitions including TOP Experte 2025 (ERFOLG Magazin), inclusion in 100 Top Unternehmer (ERFOLG Magazin), Top Berater 2026 (KURIER & IMWF Austria), and Excellent Company (Cooperation Partner Network).

Revenue is generated exclusively through professional services — project-based consulting engagements and ongoing advisory retainer relationships — with a freemium initial consultation ("unverbindliches Erstgespräch") funnel into paid work; pricing is not publicly disclosed. The go-to-motion is direct enterprise field sales combined with event- and award-driven thought leadership (LinkedIn, Instagram, content marketing via project showcases, and PR-driven credibility). Tantum is privately held by its founder with no external institutional investment, no funding rounds, no M&A activity, and no disclosed subsidiaries.

Name

Tantum GmbH

Legal name

Tantum GmbH

Website

https://tantum.at

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Tantum GmbH is an Innsbruck-based Austrian consulting firm that provides strategic and digitalization advisory to family businesses, SMEs, and startups across the DACH region, specializing in succession planning, business transformation, M&A advisory, and executive sparring via its proprietary BSM Family Business Board™ framework.

Ownership category

akta.pro rank

Headquarters

HQ city

Innsbruck

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Professional Advisory Services: Sparring and advisory engagements with owner families, entrepreneurs, and decision-makers. Services include business strategy, succession planning, transformation consulting, M&A advisory, and executive coaching. Revenue generated through project-based consulting engagements and ongoing advisory retainer relationships.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Tantum GmbH is an Austrian consulting firm that advises startups, small and medium-sized businesses (SMBs), and family-owned companies on strategy, digitalization, transformation, and succession planning. The firm offers executive-level sparring for founders and owners, alongside structured frameworks such as the proprietary BSM Family Business Board™ methodology, and provides pitch-deck and decision-support services for business owners.

Product overview

Tantum GmbH is a consulting firm offering a portfolio of advisory services rather than a unified software product. The core offerings include the BSM Family Business Board™ for family business governance and succession, Transformation services for business model restructuring and value enhancement, Startup & Scaleup Services for investor readiness and growth planning, Unternehmensentscheidungen for M&A and critical business decisions, and Leadership Sparring for executive decision support. These services are delivered through personalized consulting engagements rather than software modules.

Differentiator

Problem solved

Functional benefit

Brands

• BSM Family Business Board™: A specialized offering for family business succession and governance, providing long-term guidance for entrepreneurial families through transition and transformation processes.

Products and services

• BSM Family Business Board™ Structured methodology for working with family-business owners on strategic, ownership, and succession decisions. Targeted at owner-led and family-owned SMBs in Austria and the DACH region.
• Strategy & Digitalization Advisory Advisory engagements for startups and SMBs covering corporate strategy, digital transformation, and operating-model design.
• Startup & Scaleup Advisory
• Succession Planning Services
• Transformation Consulting
• Executive & Owner-Level Sparring
• Pitch-Deck Services

Quantifiable outcome

• 315 Mio. Euro an Unternehmenswerten geschaffen

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered minor.

• ERFOLG MagazinminorGTM or Marketing PartnerRecognition partnership through which Tantum has been designated TOP Experte 2025 and included among 100 Top Unternehmer. This provides third-party credibility endorsement and media visibility in the DACH business community.
• KURIER and IMWF AustriaminorGTM or Marketing PartnerRecognition partnership through which Tantum was awarded Top Berater 2026. IMWF (Institut für Management- und Wirtschaftsforschung) provides independent research and validation for the consulting award.
• Cooperation Partner Network (Excellent Company)minorStrategic or Co-development PartnerTantum is part of a network of excellent companies that has been strengthening the economy sustainably for over 15 years. Network provides cross-referrals and collective credibility building among member businesses.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Market position

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/tantum-at
• Instagraminstagram.com/tantum.at

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

Investments1 record

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

Frequently asked questions about Tantum GmbH