GeoTHERM Expo & Congress
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About this event
GeoTHERM Expo & Congress — Event Description
GeoTHERM expo & congress is positioned as the world’s leading trade fair and congress focused on geothermal energy, bringing together high-calibre expertise across both near-surface and deep geothermal applications. The event is hosted in Offenburg, Germany—described by the organizers as the “centre for future energy in Europe”—and is designed to combine innovation, knowledge exchange, and practical industry networking within a specialized geothermal ecosystem.
Dates and Location
- Dates: 25–26 February 2027
- Venue: Messe Offenburg-Ortenau GmbH
- Address: Schutterwälder Straße 3, D-77656 Offenburg, Germany
- City & Country: Offenburg, Germany
Event Type and Structure
GeoTHERM is not only an exhibition—its congress format is structured around geothermal subsurface technology and industry decision-making. The event runs as a two-day program with two parallel congress tracks dedicated to:
- Near-surface geothermal energy
- Deep geothermal energy
This dual-track design allows attendees to align their learning, supplier sourcing, and networking with their specific technical scope—whether projects focus on shallow ground energy systems or large-scale deep geothermal development. It also supports cross-learning between industry segments, science, and public stakeholders.
Who Comes to GeoTHERM
Each edition brings together international experts, companies, and decision-makers from across the geothermal value chain. While GeoTHERM is primarily an industry and professional congress/expo, it is designed to facilitate collaboration among multiple stakeholder groups, including:
- Industry companies involved in geothermal technology, project development, and services
- Experts and practitioners sharing technical insights and practical experience
- Science and research participants contributing knowledge and evidence-based developments
- Public and policy stakeholders connected to energy transition decisions
Exhibitor and Congress Highlights
GeoTHERM emphasizes both scale and quality within the geothermal sector. The event highlights include:
- 302 exhibitors from Germany and abroad (as stated on the official site)
- 2 parallel congresses covering near-surface and deep geothermal energy
- High-calibre presentations and practical examples
- Networking with international experts
Where the Show Happens + Attendee Geography (What We Can Reliably State)
GeoTHERM takes place at Messe Offenburg-Ortenau GmbH in Offenburg, Germany. The official event description states that the audience and ecosystem include international experts, companies, and decision-makers, and that the exhibitor base includes companies from Germany and abroad.
Based only on the official content provided, the event geography can be described reliably as: an international industry gathering with cross-border participation in both exhibitors and participants.
Audience Reach (Local / National / Global)
The organizers present GeoTHERM as a world-leading expo and congress with international participants. From the official descriptions available, the strongest supported characterization is: international reach within the geothermal industry.
The official page does not provide specific attendee origin breakdowns (e.g., percentage of local vs. national), so we cannot quantify whether the reach is primarily local, national, or globally distributed beyond what is stated: international experts, companies, and decision-makers attend, and exhibitors come from Germany and abroad.
Why GeoTHERM Matters for Geothermal Buyers and Decision-Makers
GeoTHERM’s format supports real industry outcomes: it combines a focused expo with structured congress programming so attendees can evaluate technologies, learn from practical application examples, and build relationships across engineering, development, research, and policy stakeholders. The dual congress tracks further strengthen buyer relevance by keeping content aligned to near-surface vs. deep geothermal business and technical needs.
Typical Value Proposition for B2B Participation
For companies looking to engage in geothermal business development, GeoTHERM offers:
- Targeted industry visibility in a concentrated geothermal marketplace
- Congress-led credibility through presentations and applied examples
- Networking opportunities with international geothermal experts and decision-makers
- Clear specialization tracks to connect with the right geothermal segment
Official Event Hours (As Provided)
- Thursday: 9:00–17:30
- Friday: 9:00–15:30
Next Scheduled Edition
The official website confirms that the next GeoTHERM takes place in Offenburg on 25 and 26 February 2027.
Data sheet
GeoTHERM Expo & Congress – Event Attendee & Buyer Profile Analysis
Event Date: 25–26 February 2027
Location: Offenburg, Germany
Event Status: Upcoming
Research Date: 1 July 2026
Event Overview
| Event Name | GeoTHERM Expo & Congress |
| Event Date | 25–26 February 2027 |
| Event Status | Upcoming |
| Venue | Messe Offenburg-Ortenau GmbH |
| City | Offenburg |
| State / Region | Baden-Württemberg |
| Country | Germany |
| Organizer | Messe Offenburg-Ortenau GmbH |
| Official Event Website | geotherm-offenburg.de/en |
| Event Type | Trade show and congress |
| Primary Category | Power & Energy |
| Secondary Applicable Categories | Industrial Engineering; Building & Construction; Environment & Waste |
| Audience Reach | Global |
| Estimated Attendance / Expected Footfall | Attendance figure not publicly confirmed by the organizer. |
| Attendance Data Reliability | Medium — exhibitor count and event format are confirmed; total visitor count is not publicly stated on the official homepage excerpt provided. |
| Main Purpose of Event | To connect international geothermal energy experts, suppliers, operators, decision-makers, and researchers through an expo and two parallel congress tracks focused on near-surface and deep geothermal energy. |
About the Event
GeoTHERM Expo & Congress is positioned as a leading international platform for the geothermal sector, combining a trade show with a technical congress. The event focuses on both near-surface and deep geothermal energy, making it relevant to drilling, subsurface engineering, heat supply, project development, utilities, and technology providers serving the energy transition.
The event matters because it brings together the commercial and technical sides of geothermal deployment in one place: suppliers showcase equipment and services, while operators, public-sector stakeholders, investors, and engineering teams compare solutions, learn from technical sessions, and build partnership pipelines. For B2B lead generation, it is especially strong for targeting energy developers, drilling and subsurface specialists, municipal utilities, engineering firms, and procurement-oriented decision-makers.
1. Who Attends: Buyers / Attendees
| Buyer / Attendee Segment | Typical Organizations | Buying Role or Influence | Relevance to Exhibitors / Suppliers |
|---|---|---|---|
| Geothermal project developers | Independent power producers, renewable developers, infrastructure firms | Evaluate project economics, technology stack, and vendor partnerships | High-value prospects for drilling, reservoir, plant, and monitoring solutions |
| Utilities and municipal energy teams | District heating operators, city utilities, public energy companies | Influence procurement, energy planning, and long-term supply agreements | Strong fit for heat network, engineering, and O&M suppliers |
| Drilling and well services teams | Drilling contractors, well service firms, subsurface specialists | Select equipment, consumables, software, and service partners | Direct demand for rigs, tooling, fluids, casing, and diagnostics |
| Engineering, procurement, and construction teams | EPC contractors, civil engineering firms, plant builders | Specify and source packages across design, build, and commissioning | High relevance for modular plant, piping, controls, and construction services |
| Public-sector buyers and permitting bodies | Regional authorities, energy agencies, ministries, regulators | Shape policy, permitting, incentives, and public procurement | Important for policy, consulting, environmental, and compliance suppliers |
| Industrial heat users | Manufacturers, processing plants, food producers, large campuses | Explore decarbonization, heat integration, and long-term energy cost reduction | Relevant for heat pumps, integration engineering, and efficiency solutions |
| Consultants and geoscience experts | Energy consultants, geology firms, environmental consultants | Recommend technical vendors and influence feasibility studies | Useful for solution providers seeking early-stage project access |
| Investors and project finance professionals | Infrastructure funds, climate investors, banks, family offices | Fund development, asset acquisition, and project scaling | Relevant for developers, advisory firms, and project finance specialists |
| Association leaders and research institutions | Geothermal associations, universities, applied research groups | Shape industry agenda, partnerships, and educational programs | Useful for media, sponsorship, and knowledge-partnership outreach |
2. Event Location and Attendee Geographic Origin
| Geographic Area | Likely Attendee Origin | Buyer Concentration | Notes |
|---|---|---|---|
| Host city: Offenburg | Local and regional energy, engineering, and municipal stakeholders | Medium | Host-city access supports short-lead event visits and supplier meetings |
| Host region: Baden-Württemberg / Southwest Germany | Utilities, manufacturers, engineering firms, public bodies | High | Strong regional concentration for energy transition and heat-network projects |
| Nearby business hubs | Karlsruhe, Stuttgart, Freiburg, Strasbourg, Basel | High | Cross-border Rhine corridor supports German, French, and Swiss participation |
| National reach: Germany | Energy developers, drilling firms, EPCs, utilities, consultants | High | German geothermal market relevance makes national buyer pull likely |
| International reach | Europe-wide and global geothermal community | High | Official site describes it as the world’s leading expo and congress for geothermal energy |
3. Audience Reach
| Reach Level | Assessment | Explanation |
|---|---|---|
| Global | Primary classification | The official website positions GeoTHERM as a world-leading expo and congress and notes international experts, companies, and decision-makers. |
4. Sample Buyer Companies and Websites
| Buyer Company / Organization | Buyer Type | Why It Is Relevant | Website | Best Job Titles to Target | Evidence Level |
|---|---|---|---|---|---|
| Messe Offenburg-Ortenau GmbH | Venue / event operator | Core event owner; useful for venue, operations, and partnership outreach | messe-offenburg.de | Events Director, Operations Manager, Partnership Manager | Confirmed Government / Procurement Organization |
| AFPG: French geothermal association of professionals | Industry association / buyer influencer | Association membership is highly relevant to project development and market education | afpg.asso.fr | President, Director, Technical Committee Lead | Prior-Year Participation Evidence |
| GEO ExPro | Industry media / market intelligence | Media partner with strong reach into subsurface and energy audiences | geoexpro.com | Editor, Commercial Director, Partnerships Manager | Confirmed Sponsor / Exhibitor |
| BKW | Utility / energy operator | Potential buyer for geothermal heat, district heating, and project partnerships | bkw.ch | Head of Energy Procurement, Project Manager, Innovation Lead | Strong Market Fit, Attendance Not Confirmed |
| EnBW Energie Baden-Württemberg AG | Utility / infrastructure investor | Regional energy company with strong fit for heat and decarbonization projects | enbw.com | VP Procurement, Project Development Director, Energy Strategy Lead | Strong Market Fit, Attendance Not Confirmed |
| Stadtwerke München GmbH | Municipal utility / district heating operator | Highly relevant for geothermal district heating and urban energy transition | swm.de | Director of District Heating, Procurement Manager, Program Manager | Strong Market Fit, Attendance Not Confirmed |
| Energiedienst Holding AG | Utility / energy services provider | Potential buyer for geothermal integration, heat supply, and project development | energiedienst.de | Head of Energy Projects, Procurement Lead, Engineering Director | Strong Market Fit, Attendance Not Confirmed |
| EWS Schönau eG | Renewable energy cooperative / utility | Potential buyer for community-scale geothermal and heat solutions | ews-schoenau.de | Managing Director, Project Development, Technical Procurement | Strong Market Fit, Attendance Not Confirmed |
| RWE Renewables GmbH | Energy developer / investor | Could evaluate geothermal as part of renewable portfolio expansion | rwe.com | Business Development Director, Procurement, Asset Manager | Strong Market Fit, Attendance Not Confirmed |
| BASF SE | Industrial heat user / decarbonization buyer | Large heat consumer with relevance for low-carbon thermal solutions | basf.com | Energy Manager, Sustainability Director, Strategic Procurement | Strong Market Fit, Attendance Not Confirmed |
| Veolia Deutschland GmbH | Infrastructure / utility services operator | Relevant for district heating, water-energy integration, and service contracts | veolia.de | Operations Director, Contract Manager, Procurement Lead | Strong Market Fit, Attendance Not Confirmed |
| Herrenknecht AG | Drilling and tunneling technology supplier | Regional heavy equipment company closely aligned to underground and drilling markets | herrenknecht.com | Business Development, Product Manager, Technical Sales | Strong Market Fit, Attendance Not Confirmed |
5. Job Profiles, Industries and Event Type
| Priority | Job Title / Function | Department | Seniority Level | Why This Role Matters |
|---|---|---|---|---|
| 1 | Director of Project Development | Projects / Strategy | Director / VP | Owns geothermal pipeline, partner selection, and feasibility decisions |
| 2 | Chief Procurement Officer | Procurement | C-level | Approves major supplier frameworks and commercial awards |
| 3 | Director of Procurement / Procurement Manager | Procurement | Manager / Director | Sources equipment, services, and EPC packages |
| 4 | Strategic Sourcing Manager | Procurement / Supply Chain | Manager | Manages vendor panels, RFQs, and cost optimization |
| 5 | Supply Chain Director | Supply Chain | Director | Influences logistics, lead times, and sourcing risk |
| 6 | Operations Director / Plant Manager | Operations | Director / Senior Manager | Owns uptime, production integration, and operating performance |
| 7 | Engineering Director / Technical Director | Engineering | Director | Evaluates system design, technical compatibility, and specs |
| 8 | Facilities Director | Facilities / Real Estate | Director | Relevant for campus heating, retrofit, and energy infrastructure |
| 9 | Business Development Director | Commercial | Director / VP | Drives partnerships, licensing, and market expansion |
| 10 | Program Manager / Project Manager | PMO / Projects | Manager | Coordinates implementation, milestones, and vendor interfaces |
| 11 | Sustainability Director / Energy Transition Lead | Sustainability / ESG | Director / Senior Manager | Looks for low-carbon heat and decarbonization pathways |
| 12 | Geoscientist / Subsurface Manager | Geoscience / Technical | Manager / Specialist | Influences exploration, reservoir targeting, and technical feasibility |
| Priority | Apollo Industry | Why It Fits the Event | Best Buyer Use Case |
|---|---|---|---|
| 1 | Oil & Energy | Core geothermal, subsurface, and project developer audience | Developers, operators, drilling, and heat-network buyers |
| 2 | Renewables & Environment | Geothermal is a renewable energy and decarbonization topic | Energy transition, sustainability, and clean heat buyers |
| 3 | Utilities | District heating and energy supply operators are key attendees | Municipal and regional utility procurement |
| 4 | Construction | EPC, civil works, and infrastructure delivery are central to projects | EPC and subcontracting opportunities |
| 5 | Mechanical or Industrial Engineering | Relevant for plant design, systems integration, and thermal equipment | Engineering services and technical suppliers |
| 6 | Civil Engineering | Borefield, site, and infrastructure works need civil expertise | Groundworks, permitting, and site development |
| 7 | Machinery | Drilling and field operations use heavy equipment and machinery | Rigs, pumps, handling systems, and equipment sales |
| 8 | Environmental Services | Permitting, impact, and monitoring are important | Environmental consulting and compliance services |
| 9 | Government Administration | Public-sector energy planning and procurement are highly relevant | Municipal utilities, permits, and policy-linked buyers |
| 10 | Business Supplies & Equipment | Covers operational sourcing needs around tools and consumables | Indirect procurement and operating supplies |
| 11 | Information Technology & Services | Digital monitoring, analytics, and project software support geothermal assets | Sensors, software, data platforms, and digital twin solutions |
| 12 | Management Consulting | Advisory, feasibility, strategy, and project structuring support | Consulting-led entry into energy buyer accounts |
6. Estimated Attendance
| Metric | Figure | Status | Source / Basis | Notes |
|---|---|---|---|---|
| Estimated total footfall | Not publicly confirmed | Unconfirmed | Official website excerpt provided does not state visitor count | Use exhibitor and congress indicators for lead-gen planning |
| Exhibitor count | 302 | Confirmed | Official event homepage | Strong indicator of market scale and supplier density |
| Buyer count | Not publicly confirmed | Unconfirmed | No verified public buyer list on the provided official content | Buyer profiles inferred from event theme and participant mix |
| Speaker count | Not publicly confirmed | Unconfirmed | Congress program exists, but count not visible in provided text | Likely strong technical speaker density |
| Sponsor count | Not publicly confirmed | Unconfirmed | Not stated in provided official content | Use partner/media pages for sponsorship prospecting |
| Historical attendance | Referenced as growing / rising visitor numbers | Historical / prior-year evidence | Official press release archive on event site | Supports continued market momentum but not a current-year figure |
7. Key Focus Areas and Buyer Engagement
| Focus Area | Typical Buyer Need | Buyer Engagement Opportunity | Relevant Supplier Offering |
|---|---|---|---|
| Geothermal drilling | Reliable, cost-controlled well construction | Target drilling managers and procurement teams with performance and safety messaging | Rigs, tooling, bits, mud systems, casing, and well services |
| District heating | Low-carbon heat supply for cities and campuses | Engage utility and municipal buyers on lifecycle value and heat reliability | Heat exchangers, pumps, pipes, controls, and network services |
| Subsurface analysis | Better reservoir targeting and risk reduction | Technical sessions support consultative selling to geoscience teams | Geoscience software, seismic services, modeling, data analytics |
| Power and heat plant equipment | Efficient equipment for plant operation and uptime | Show engineering value and operational reliability to plant teams | Turbines, pumps, valves, controls, monitoring systems |
| Project finance | Bankable project models and risk management | Reach investors and developers with return, policy, and risk narratives | Advisory, underwriting, insurance, project structuring |
| Decarbonization and ESG | Lower-emission thermal energy and compliance progress | Position geothermal as a credible scope-1 and scope-2 reduction pathway | ESG consulting, carbon strategy, lifecycle assessment |
| Monitoring and digitalization | Real-time asset visibility and predictive maintenance | Use demo-led conversations with operations and engineering leaders | Sensors, SCADA, IoT platforms, dashboards, digital twins |
Lead Quality Assessment
| Factor | Assessment | Explanation |
|---|---|---|
| Buyer relevance | Very High | The event is centered on a capital-intensive sector with clear technical and procurement demand. |
| Decision-maker availability | High | Likely attendance from directors, technical leads, and procurement stakeholders. |
| Data collection potential | Medium | Official exhibitor list and press releases are available, but a public buyer list is not confirmed. |
| Apollo targeting potential | Very High | Strong fit across energy, utilities, construction, engineering, and government filters. |
| Geographic targeting potential | High | Offenburg attracts German, DACH, and wider European participation. |
| Best outreach approach | Consultative / technical | Use project ROI, decarbonization, risk reduction, and engineering performance messaging. |
| Overall lead quality | High | Strong buyer intent is likely, especially for technical vendors and project-stage solution providers. |
| Best use case | Lead generation, attendee profiling, and account targeting | Best suited for ABM, list building, and event-driven outbound campaigns. |
| Limitations / risks | Moderate | Public buyer lists are not confirmed in the provided source text; prospect lists should be validated before outreach. |
Apollo.io Targeting Recommendation
| Filter Type | Recommended Filters | Purpose |
|---|---|---|
| Apollo industries | Oil & Energy; Renewables & Environment; Utilities; Construction; Civil Engineering; Machinery; Environmental Services; Government Administration; Information Technology & Services; Management Consulting | Capture core geothermal buyers and adjacent decision-makers |
| Departments | Procurement; Operations; Engineering; Projects; Strategy; Sustainability; Supply Chain; Facilities | Focus on buying and specification owners |
| Seniority | Manager; Director; VP; C-level; Owner; Partner | Prioritize decision-makers and budget holders |
| Job titles | Procurement Manager, Strategic Sourcing Manager, Project Director, Energy Director, Operations Director, Engineering Director, Sustainability Director, Asset Manager, Business Development Director, Program Manager | Align outreach to technical and commercial stakeholders |
| Geography | Germany; DACH; France; Benelux; Switzerland; Austria; broader EU | Match event’s European reach and cross-border market pull |
| Employee size | 51–200; 201–500; 501–1,000; 1,001–5,000; 5,000+ | Capture both specialist firms and large utility / industrial buyers |
| Keywords | geothermal, district heating, renewable heat, subsurface, drilling, heat pump, deep geothermal, decarbonization, energy transition, well services | Increase precision around event-relevant accounts |
| Technologies | SCADA, IoT monitoring, energy management systems, GIS, engineering software, asset management platforms | Useful for digital and analytics vendors |
| Revenue range | €10M+ where available; prioritize larger infrastructure and utility budgets | Targets organizations with project and procurement scale |
| Company type | Utility; developer; EPC; drilling contractor; municipality; industrial operator; consulting firm | Focus on organizations that buy, specify, or influence geothermal spend |
Suggested Apollo Search Logic: (geothermal OR “district heating” OR “renewable heat” OR subsurface OR drilling OR “energy transition”) AND (procurement OR sourcing OR engineering OR operations OR sustainability OR projects) AND (Director OR VP OR Manager OR C-level)
Client Fit Review Required
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Sources & Verification Notes
| Source | Type | What It Verified | Reliability |
|---|---|---|---|
| GeoTHERM official English homepage | Official organizer / event website | Dates, location, venue, exhibitor count, event positioning, congress format, press archive | Very High |
| Messe Offenburg-Ortenau GmbH | Venue / organizer website | Venue identity and organizer ownership context | High |
| GeoTHERM press section | Official press / news archive | Historical evidence of visitor momentum and 2027 ticket / call-for-papers announcements | High |
| GeoTHERM exhibitor directory | Official exhibitor list | Confirmed exhibitor ecosystem and market sectors represented | Very High |
| GeoTHERM congress program | Official agenda page | Congress relevance, technical subject matter, and audience profile cues | High |
🎯 Selling to this event's audience? Get a free tailored buyer list
Tell us your work email and our AI instantly builds a buyer list matched to GeoTHERM Expo & Congress — the best‑fit companies to target, the exact decision‑maker job titles, and the industry filters that fit what you sell.
🔒 Get my buyer details Free · ~20 seconds