
30 years of hands-on experience. Building, scaling, exit to a leading European construction group. Now at your side.
HSG is my entrepreneurial platform - the place where experience, infrastructure and execution power come together.
Whether CEO, entrepreneur or innovator - we speak your language and understand your challenges. Not from theory, but from 30 years of hands-on business experience.

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Years of Experience
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Employees (System House)
The Innovation HUB is the physical core of HSG - this is where transformation becomes tangible. Entrepreneurs and leadership teams experience technologies in live operation and make decisions based on real data.
Born from over 30 years of entrepreneurial practice and the building of HUMMEL Systemhaus (sold to a leading European construction group in 2020). Today a demonstration space, workshop and meeting point for decision-makers.



The place where entrepreneurs can not only see but touch and evaluate future technologies - before making investment decisions.
PV, storage, charging infrastructure, automation - running systems as a decision basis for your own project.
Events, workshops and sparring with entrepreneurs who face similar questions.

Frank Hummel
Entrepreneur · Sparring Partner · Advisory Board

I accompany entrepreneurs and leadership teams on questions of transformation, future-readiness and entrepreneurial development - not from theory, but from my own experience.
30 years of entrepreneurship. Building, scaling, exit to a leading European construction group. Today as an independent sparring partner at eye level.
Strategic realignment and future-readiness
Growth, scaling and exit preparation
Advisory board and governance at shareholder level
Transformation: energy, digitalization, organization
Investment decisions with reliable data basis
Sparring for management and leadership teams

REVOLUTION E translates strategy into infrastructure: PV, storage, charging infrastructure and energy management as an integrated system - planned, built and operated.
The implementation arm of HSG for entrepreneurs who want to reduce energy costs, gain independence and future-proof their infrastructure.

PV + storage, load shifting, intelligent EMS
OCPP, load management, billing & backend
Monitoring, reporting, peak shaving, tariff optimization
Heating/HVAC, charging points, fleet
Remote-capable, open interfaces (API), scalable
Energy flat rate, tenant electricity, multi-family/commercial
Feasibility check, business case, implementation roadmap
HSG Hummel Service Group


Frank Hummel
CEO - HSG | Beirat BW
Founder and long-time CEO of HUMMEL Systemhaus - scaled to over 100 employees, expanded in 2016 to a full-service provider with ICT and REVOLUTION E, strategically sold to a leading European construction group in 2020 (asset deal). Three more years as CEO and division head in the corporation, exit end of 2023. HSG is his entrepreneurial platform - the place where experience, infrastructure and execution power come together.
Today he accompanies entrepreneurs and leadership teams on questions of transformation, future-readiness and entrepreneurial development - not from theory, but from his own experience.
Author of "Highway to Climate Hell" - a pragmatic guide for everyone who wants to make their daily life, organization or project more efficient and sustainable through electrification.
Company building, growth, exit
All-Electric: PV, storage, charging, automation
Digital transformation & process excellence
Investments, participations, business development
Keynote impulse & in-house trainings
As a certified advisory board member at Beirat BW, Frank Hummel accompanies companies in strategic decisions. With over 30 years of experience in building, scaling and transforming companies, he brings a special strength at the intersection of strategy, energy, infrastructure and operational implementation.
His own responsibility in growth phases, strategic realignment, company sales and corporate integration make him the ideal sparring partner for shareholders and management teams seeking impact and value creation.
30+
Years of Experience
80+
Employees Scaled
Book an appointment directly for a personal conversation - by phone or video call. Available times are displayed in real-time from my calendar.
Whether strategic consulting, all-electric solution or Innovation HUB partnership - we look forward to your inquiry.
Location
HSG HUMMEL Service Group
In den Gersäckern 13
72636 Frickenhausen
Germany
Phone
+49 7025 14992 60