What DENEFF does

DENEFF (Deutsche Unternehmensinitiative Energieeffizienz e.V.) is a registered German industry association founded in November 2010 by Martin Bornholdt and headquartered in Berlin (Alt-Moabit 103). It functions as the principal corporate lobbying and networking body for energy efficiency in Germany, representing more than 220 member companies across energy services, real estate, industrial, and technology sectors — including Veolia Energie Deutschland, Engie Deutschland, Wilo SE, Buderus (Bosch Thermotechnik), Vonovia, Deutsche Telekom, and Elevion Group. Its chairman is the CDU Member of the Bundestag Carsten Müller, and two managing executive board members (Christian Noll, Henning Ellermann — elected 2023) lead daily operations. DENEFF is positioned as the leading policy voice on energy efficiency legislation in both Berlin and Brussels, particularly around the Energieeffizienzgesetz (EnEfG), under the banner "Effizienz first."

The association runs a diversified portfolio of publicly funded innovation projects and free tools, organized around the Bytes2Heat ecosystem for data-center waste-heat utilization (matching tool, Quick-Check Wirtschaftlichkeit economic-viability calculator, Förder- & Politikübersicht, Best-Practice-Übersicht of 99 examples from 15 countries), the digistainable NOW! innovation map and toolkit built with HPI D-School, the RealGreen Award competition (2023, 2024, 2026 editions) and RealGreen webinarreihe funded by BMWK, the Klimadaten-Tool, the Sanierungssprint renovation-sprint program with DBU funding, the CoSo contracting tools for social institutions, and the RE:DESIGN EFFICIENCY image database. Delivery to members happens through monthly DENEFF Live-Update webinars, the annual DENEFF-Jahreskonferenz in Berlin with multiple enterprise sponsors (2G Energy, Apleona, Engie Deutschland, VELUX, Wilo, Buderus), practice forums (Immo2.Zero for real estate, Industry2.Zero for industry), the Brancheninsider Energieeffizienz newsletter, and the wholly-owned EDL_HUB adjacent subsidiary that serves energy service companies.

The revenue model is a mix of recurring annual corporate membership fees from 220+ members (pricing not publicly disclosed; quote-based) and public grant funding from BMWE, BMWK, the EU LIFE programme (LEVERAGE, 2025-2028), IÖW (EnSanKoop, 2024-2028), and DBU (Sanierungssprint, 2025). No equity funding rounds have been raised; DENEFF is a nonprofit registered association (e.V.) with no disclosed financials and approximately 30 employees. Service to members is anchored on three value pillars: direct influence on German and EU energy-efficiency policy, exclusive intelligence via LIVE-Updates and the newsletter, and hands-on innovation projects and free tools that members can use internally and externally.

Name

DENEFF

Legal name

Deutsche Unternehmensinitiative Energieeffizienz e. V.

Website

https://deneff.org

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

DENEFF is a Berlin-based nonprofit industry association representing 220+ member companies in the German energy efficiency sector, providing policy advocacy in Berlin and Brussels, networking, and free innovation tools/projects such as Bytes2Heat, digistainable NOW!, RealGreen Award, and Klimadaten-Tool.

Ownership category

akta.pro rank

Product category

Energy Efficiency Industry Association

NAICS

Business Associations (813910), Environment, Conservation and Wildlife Organizations (813312)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

Environmental, Climate & Sustainability Standards & Reporting Cooperation (BPADANAI)

Keywords

• Energy efficiency policy
• Industry association membership
• Energy transition advocacy
• Decarbonization consulting
• Climate protection network

Headquarters

HQ city

Berlin

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. Corporate Membership Fees: DENEFF generates revenue through annual membership fees from over 220 member companies. Membership provides access to policy updates, networking events, LIVE-Updates, working groups, and the organization's advocacy services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

DENEFF (Deutsche Unternehmensinitiative Energieeffizienz e.V.) is a German energy efficiency industry association representing over 220 member companies. Its core offering combines policy advocacy in Berlin and Brussels with practical innovation projects, member networking events (annual conference, Live-Updates, Praxisforen), free digital tools for energy efficiency assessment (Bytes2Heat ecosystem, digistainable NOW!, Klimadaten-Tool), and educational programs such as the RealGreen Webinarreihe and the annual RealGreen Award competition.

Product overview

DENEFF (Deutsche Unternehmensinitiative Energieeffizienz e.V.) is a German energy efficiency industry association and network comprising over 220 member companies. Rather than a unified commercial software product, DENEFF's offering consists of free innovation tools developed through publicly funded research projects (particularly Bytes2Heat and digistainable NOW!), educational programs (RealGreen Webinarreihe, CoSo tools), publications (Brancheninsider newsletter), awards (RealGreen Award), and regular events (DENEFF Jahreskonferenz, Live-Updates). The core portfolio includes the Bytes2Heat toolkit family for data center waste heat utilization assessment (Quick-Check Wirtschaftlichkeit, Best-Practice-Übersicht, Matching-Tool, Förder- & Politikübersicht), climate protection tools for real estate (Klimadaten-Tool), renovation process tools (Sanierungssprint Handlungsempfehlungen), digital innovation resources (digistainable NOW! Landkarte and Toolkit), and networking/advisory services (Energiespar-Sprechstunde, Praxisforen). These tools are provided free of charge to support the energy transition in Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• DENEFF Membership
• DENEFF-Jahreskonferenz (Annual Conference)
• RealGreen Award
• RealGreen Webinarreihe
• Bytes2Heat Quick-Check Wirtschaftlichkeit

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

25 partnerships are on record, tiered core and minor.

• E7 GmbHcoreStrategic or Co-development Partner · 1 July 2025International partner in LEVERAGE project for mobilizing private financing for public decarbonization across 9 EU countries.
• EUROCROWDcoreStrategic or Co-development Partner · 1 July 2025European crowdfunding association partner in LEVERAGE project for public building decarbonization financing.
• CREARA ConsultorescoreStrategic or Co-development Partner · 1 July 2025Energy consulting firm partner in LEVERAGE EU project for private financing mobilization.
• Jozef Stefan Institute (JSI)coreStrategic or Co-development Partner · 1 July 2025Research institute partner in LEVERAGE project across 9 EU countries.
• SEVEn (Energy Efficiency Center, Czech Republic)coreStrategic or Co-development Partner · 1 July 2025Czech energy efficiency center partner in LEVERAGE project.
• CRES (Greece)coreStrategic or Co-development Partner · 1 July 2025Centre for Renewable Energy Sources and Saving partner in LEVERAGE project.
• LABEEF (Latvia)coreStrategic or Co-development Partner · 1 July 2025Latvian Building Energy Efficiency Facility partner in LEVERAGE EU project.
• REGEA (Croatia)coreStrategic or Co-development Partner · 1 July 2025North-West Croatia Regional Energy and Climate Agency partner in LEVERAGE project.
• FEDERESCOcoreStrategic or Co-development Partner · 1 July 2025European federation of energy service companies partner in LEVERAGE project.
• Institut für ökologische Wirtschaftsforschung (IÖW)coreStrategic or Co-development Partner · 1 August 2024Research partner in EnSanKoop project on cooperative energetic renovation between landlords and tenants.
• 2G Energy AGminorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• ApleonaminorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• Buderus (Bosch Thermotechnik)minorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• Engie Deutschland GmbHminorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• VELUX Deutschland GmbHminorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• Wilo SEminorGTM or Marketing Partner · 1 June 2024Sponsor of DENEFF Annual Conference 2026.
• Fraunhofer ISIcoreStrategic or Co-development Partner · 1 January 2024Research partner in the WEIT (Wärme-Effizienz durch Industrie-Transformation) project, investigating diffusion conditions for climate-neutral process heat applications in industry.
• Ökotec GmbHcoreStrategic or Co-development Partner · 1 January 2024Energy management company partnering in WEIT project for industrial process heat decarbonization research and tool development.
• HPI D-School (Hasso-Plattner-Institut)coreStrategic or Co-development Partner · 1 April 2022Design thinking institute partnering on digistainable NOW! project to develop digital climate protection solutions through workshop formats.
• empact engineering GmbHcoreStrategic or Co-development Partner · 1 April 2021Engineering partner in Bytes2Heat project developing tools and business models for waste heat utilization from data centers.
• Universität Stuttgart (IER, IVR)coreStrategic or Co-development Partner · 1 April 2021University institutes (Institute for Energy Economics and Rational Energy Application; Institute for Economics and Law) partnering in Bytes2Heat project.
• Bundesministerium für Wirtschaft und Klimaschutz (BMWK)coreOthers · 1 December 2020Government ministry providing funding for Klimaschutzvorreiter project and RealGreen webinar series.
• Hochschule für Technik StuttgartminorStrategic or Co-development Partner · 1 March 2019Technical university partner in CoSo project for contracting in social institutions.
• KEA (Klimaschutz- und Energieagentur Baden-Württemberg)minorStrategic or Co-development Partner · 1 March 2019Climate protection and energy agency partner in CoSo project for contracting in social institutions.
• EDL_HUB (Energiedienstleistungs-Hub)coreStrategic or Co-development Partner · 1 January 2018DENEFF's energy and decarbonization service provider hub supporting energy service companies (EDL) and facilitating heat planning law implementation.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Carbon Trust: UK-based non-profit providing energy efficiency advisory, certification, and policy advocacy — directly comparable business model of a mission-driven, partially publicly-funded organization driving energy efficiency market development and providing tools/training.
• Bundesverband Erneuerbare Energien (BEE): German federal industry association for renewables, representing energy transition companies in policy processes in Berlin and Brussels — directly comparable membership and policy advocacy model to DENEFF, with overlap on energy transition legislation.
• FEDERESCO: European federation of energy service companies (ESCOs) — directly addresses the same ESCO industry that DENEFF's EDL_HUB subsidiary serves, and is already a documented DENEFF partner in the LEVERAGE consortium.
• Deutsche Energie-Gesellschaft (dena): Germany's federal energy agency, a membership-based organization running nationwide programs on energy efficiency, building decarbonization, and energy transition policy advocacy — directly comparable to DENEFF in mission, member services, and Berlin policy access.
• EuroACE (European Alliance of Companies for Energy Efficiency in Buildings): European-level industry alliance focused on energy efficiency in buildings — directly aligned with DENEFF's Immo2.Zero practice forum, building-focused policy advocacy, and EU policy work; DENEFF is a natural member/counterpart at EU level.
• Verband der Industriellen Energie- und Kraftwirtschaft (VIK): German industry association for industrial energy users and CHP operators — addresses the same industrial energy efficiency / decarbonization policy topics as DENEFF's Industry2.Zero forum and serves an overlapping German industrial membership base.

Broad incumbents

• Bundesverband der Deutschen Industrie (BDI): Largest German industry federation representing the entire industrial base — broader mandate than DENEFF but engages on energy/industrial policy; DENEFF members are often also BDI members; BDI is the dominant voice DENEFF must coordinate against or with.
• Bundesverband der Energie- und Wasserwirtschaft (BDEW): The central German utility and energy services industry association covering electricity, gas, and water — much broader scope than DENEFF, but operates the same membership-based advocacy model in German energy policy and includes energy efficiency in its mandate.
• Verband Deutscher Maschinen- und Anlagenbau (VDMA): Germany's mechanical engineering industry association — represents industrial energy users and energy-efficient technology providers with overlapping interest in industrial energy efficiency, with greater reach but less focused advocacy than DENEFF.

Regional players

• Klimaschutz- und Energieagentur Baden-Württemberg (KEA): Regional energy and climate protection agency for Baden-Württemberg — already a documented DENEFF project partner (CoSo), with overlapping mission on building decarbonization and energy efficiency; serves a sub-national market rather than competing nationally.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC4kXRO_0rtbFHwmHJXu0aWw
• Facebookde-de.facebook.com/DENEFFeV
• LinkedInde.linkedin.com/company/deneff
• Xx.com/DENEFFeV

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 DENEFF