21–23 Sep 2027 · Leipzig, DE

efa:ON

efa:ON is a three-day trade fair for electrical, building and lighting technology held at Leipziger Messe in Leipzig. It presents products, systems and applications related to energy-efficient building technology, smart automation and lighting, and includes a specialist programme with industry speakers. In 2027 it runs 2027-09-21 to 2027-09-23 and is staged together with netze:ON and (partly) Sustainable Solutions Leipzig to broaden coverage of energy, digitalisation and renewable-energy topics.

Last updated

Dates
21–23 Sep 2027
Venue
Messe GmbH
Location
Leipzig, DE
Audience
Trade
Duration
3 days
Scale
Regional
Exhibitors
210Estimate
Visitors
11,800Fact
Construction & BuildingElectronicsHVAC & PlumbingHome, Furniture & InteriorsIndustrial & ManufacturingEnergy & UtilitiesSecurity & Safety
Event website

Compiled from public sources and periodically reviewed and updated. This information is provided for general guidance only and may be incomplete or out of date — please verify all details directly with the organizer or venue before relying on them.

About efa:ON

efa:ON is a regional trade show in Leipzig, Germany for the Construction & Building and Electronics industries. The 2027 edition runs 21–23 Sep 2027 at Messe GmbH. It brings together an estimated 210 exhibitors and 11,800 visitors (organizer-confirmed). Event Scout has indexed 16 exhibiting companies for the event so far.

Known editions

Venue

Messe GmbH

Leipzig, Saxony, DE

Who exhibits at efa:ON

We've captured 16 exhibitors for efa:ON (roster as of 2027). They span 4 countries, 75% of them based outside Germany.

Where exhibitors are based

Exhibitors' head-office countries, most-represented first.

  • Germany25%·1
  • Portugal25%·1
  • United States25%·1
  • British Virgin Islands25%·1

Based on 4 exhibitors with a known head-office country.

What exhibitors do

The industries the exhibitor base works in, by share of the roster.

  • Energy Electronics33%·1
  • Religious Congregations And Associations33%·1
  • Software It33%·1

Based on 3 exhibitors with an industry label — a company can carry several, so shares can total over 100%.

Exclusivity

0%Class Gof exhibitors exhibit nowhere else we track

Ubiquitous roster — almost all of these exhibitors appear at many other events we track.

Cross-referenced against 16 exhibitors in our event graph.

International reach

75%Class Bof exhibitors are based abroad

Highly international — a broad field reaching well beyond the host country.

Compiled from public sources and periodically reviewed and updated. This information is provided for general guidance only and may be incomplete or out of date — please verify all details directly with the organizer or venue before relying on them.

efa:ON 2027 exhibitor list

Event Scout has indexed 10+ companies exhibiting at efa:ON so far. They span industries including energy-electronics, software-it and religious congregations and associations. The preview below shows a sample of the indexed roster; the full list is available through Event Scout.

  • CONTACTS BECOME CUSTOMERS
  • efa:ON
  • In tandem with efa:ON
  • Industry Sector of Trade Visitors 2025
  • Knowledge & Services
  • netze:ON
  • Origin of Trade Visitors 2025
  • Planning your trade fair presence
  • Sustainable Solutions (Guest Event)
  • Technical Implementation

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Frequently asked questions

When is efa:ON 2027?
efa:ON 2027 runs 21–23 Sep 2027 at Messe GmbH.
Where is efa:ON held?
efa:ON is held at Messe GmbH in Leipzig, Germany.
How many exhibitors does efa:ON have?
efa:ON counts an estimated 210 exhibitors. Event Scout has indexed 16 exhibiting companies so far.
Who exhibits at efa:ON?
Indexed exhibitors include Efficient MarketsEfficient MarketsEfficient Markets, Digitalization, Light and ... as part of its marketing efforts. The event spans the Construction & Building, Electronics and HVAC & Plumbing sectors.
Is efa:ON worth attending?
efa:ON is a regional trade show for the Construction & Building and Electronics industries, so it is most relevant to exhibitors and buyers in those industries. It brings together an estimated 210 exhibitors. Whether it is worth attending depends on your objectives, but its scale and sector focus are a useful guide.
How do I get the efa:ON exhibitor list?
Event Scout has indexed 16 companies exhibiting at efa:ON so far. A sample is shown in the exhibitor-list section on this page, and the full roster is available through Event Scout.

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The data on this page comes from Pragmatic Event Scout — a live catalog of 14,000+ trade shows where every figure is labeled as a fact or an estimate.Logos provided by Logo.dev

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