alteno

What alteno does

Alteno AG is a privately held Swiss engineering firm headquartered in Basel, founded in 1987, that specializes in planning photovoltaic (PV), heating, and integrated building energy systems for residential, commercial, municipal, and institutional projects. Its core service offering spans feasibility studies, technical concept development, engineering and DC planning, tendering and submission management, construction supervision, commissioning, and ongoing technical operations management. The firm holds an unusually dense set of Swiss energy certifications — Swissolar Solarprofis and expert status, Minergie Fachpartner across Minergie/Minergie-P/Minergie-A/Minergie-Eco, GEAK Plus experts, EnAW moderators, Holzenergie Schweiz certified company, and federal BfE Impulse Advisor for "erneuerbar heizen" — positioning it as a one-stop integrator of PV, heat pump, district heating, ZEV (Zusammenschluss zum Eigenverbrauch) self-consumption, battery storage, and EV charging infrastructure planning. The 9-person team of ETH/SIA-certified engineers, led by co-owners Christoph Schings-Boitz (VRP), André Paris, and Lukas Herzog, executes the work directly through sales-led, project-based engagements and supplements it with managed-services revenue from technical operations management of the affiliated Alteno Solar AG portfolio of 50+ PV installations totaling approximately 5 MWp.

The business operates on professional-services revenue mechanics: project-based fees for engineering and planning work, multi-year contracts for ongoing technical operations management, and per-engagement pricing for expert opinions, certifications, and EnAW target agreements. Distribution is purely direct: the firm sells to end customers — homeowners, housing cooperatives, municipalities, healthcare providers, religious institutions, and private enterprise — without intermediaries, and markets primarily through its website, LinkedIn presence, and credibility signals from industry association memberships. The company shares management, IT infrastructure, and an ongoing technical-operations mandate with Alteno Solar AG, which emerged from Alteno AG in 1997 and now operates independently as a PV investor/operator with regional subsidiaries Alteno Solar GmbH in Germany and Alteno Solaire SARL in France. Documented reference projects include the ~1 MWp Terraviva PV installation in Kerzers (one of the largest in firm history), the 360 kWp Margelacker school complex in Muttenz with custom shed-roof engineering, the 287 kWp Seniorenzentrum Gritt healthcare facility with emergency power coupling, and 90% self-consumption ZEV arrangements for multi-apartment housing cooperatives.

Name

alteno

Legal name

Alteno AG

Website

https://alteno.ch

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

1–10 employees

Short description

Alteno AG is a Basel-based Swiss engineering firm (founded 1987) that plans photovoltaic, heating, and integrated building energy systems for residential, housing cooperative, municipal, healthcare, and institutional clients across Switzerland, with affiliated operations in Germany and France.

Ownership category

akta.pro rank

Product category

Renewable Energy Engineering Services

NAICS

Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Energy & Renewables Specialty Contracting (Solar PV, Storage, EV Charging) (IMAFALAJ)

akta.pro secondary industries

Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB), Commissioning, Testing & Energization Services (Pre-Commissioning, Grid Code Compliance) (EUAMAFAK)

Keywords

• Photovoltaic planning
• Heating system engineering
• Building energy consulting
• Renewable energy design
• Solar engineering services

Headquarters

HQ city

Basel

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Engineering and Planning Services: Comprehensive consulting and planning services for PV and heating systems. Includes feasibility studies, concepts, engineering, tendering/submission management, quality control, construction supervision, and final acceptance. Services billed on project basis.
2. Technical Operations Management: Ongoing technical monitoring and management of PV plants, including performance monitoring and quality control services for Alteno Solar AG's portfolio of over 50 plants.
3. Expertises and Certifications: Expert opinions and assessments including Swissolar expert opinions for PV installations, GEAK Plus reports, Minergie certifications, and energy optimization consulting.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Alteno AG is a Swiss engineering firm that plans photovoltaic (PV) systems and heating/building energy installations for residential, commercial, and public-sector projects. Services cover feasibility, concept, engineering, tendering, construction supervision, technical operational management, and certifications (Swissolar, Minergie, GEAK). The firm operates in partnership with affiliated Alteno Solar AG, which invests in and operates PV plants in Switzerland, Germany, and France.

Product overview

Alteno AG is an ETH/SIA-certified Swiss engineering firm offering integrated building technology planning and solar energy solutions. The company operates two divisions: Alteno AG handles the planning and consulting services (photovoltaic systems, heating systems, expertise), while affiliated company Alteno Solar AG manages construction and technical operation of PV installations. The core offering includes Photovoltaik-Anlagen Planung (comprehensive PV system engineering), Heizungsanlagen Planung (renewable heating system design), and supporting service modules such as Eigenverbrauchslösungen (self-consumption optimization including ZEV coordination), Batteriespeicher Integration (storage systems), Technische Betriebsführung (operational management and monitoring), Expertisen und Analysen (energy consulting and certification support), E-Mobility Ladeinfrastruktur (EV charging integration), and EnAW-Moderatoren Energiemanagement (large-consumer energy management). The company manages a portfolio of over 50 PV installations totaling approximately 5 MWp through its Alteno Solar AG subsidiary.

Differentiator

Problem solved

Functional benefit

Products and services

• Photovoltaic System Planning (Photovoltaik-Anlagen Planung) Comprehensive planning and engineering of photovoltaic systems, from strategic consulting and feasibility studies through technical building supervision, quality control, and commissioning. Targets residential, commercial, and institutional PV installations up to large-scale multi-MWp solar plants.
• Heating System Planning (Heizungsanlagen Planung) Planning of renewable heating systems including ground-source heat pumps, wood heating systems, district heating connections, and combined heat and power concepts, offered as professional engineering services for buildings.
• Technical Operations Management (Technische Betriebsführung) Ongoing technical operational management and monitoring of PV plants, including oversight for the Alteno Solar AG portfolio of over 50 installations totaling approximately 5 MWp, as well as third-party PV plant monitoring and quality control.
• Expert Evaluations and Analyses (Expertisen und Analysen) Expert evaluations including Swissolar expert opinions for PV installations, GEAK Plus energy consulting reports, Minergie certification support, EnAW target agreements, and energo operating optimization programs.
• EnAW Energy Management Moderation Energy management services delivered through accredited EnAW moderators, offering target agreements for large energy consumers to achieve energy savings and CO2 reduction targets via a 6-point program.

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Alteno Solar AGcoreStrategic or Co-development PartnerAlteno Solar AG emerged from Alteno AG in 1997 and operates as an independent investor and operator of PV installations. Alteno AG provides technical operations management for Alteno Solar AG's portfolio of over 50 installations totaling 5 MWp. Both companies share IT infrastructure and operate jointly under common management.
• Sonnwende (Installation Company)minorImplementation/ SI/ Consulting PartnerInstallation partner for PV projects. Collaborated on multiple installations including Schulhaus Margelacker project in Muttenz.
• Youth on the RoofminorOthersNon-profit organization providing youth solar education. Partnered on the Freizeithaus Allschwil project where students participated in PV installation over four days.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Amstein + Walthert: Swiss engineering consultancy specializing in building services, energy, and sustainability — a direct peer to Alteno in building-technology and PV planning across German-speaking Switzerland.
• Basler & Hofmann: Swiss engineering firm covering energy, buildings, and infrastructure with strong renewable energy and PV planning practices, competing head-to-head with Alteno for municipal and cooperative mandates in the Basel/Zurich region.
• EBP (Ernst Basler + Partner): Swiss engineering and consulting firm with energy, building, and mobility practices — comparable to Alteno for integrated building energy planning and certification (Minergie, GEAK, EnAW) work.
• Helion Solar: Swiss PV installer and planner offering end-to-end solar solutions for residential, commercial, and municipal customers — overlaps with Alteno on PV system design and ZEV arrangements in the Swiss market.
• Enerix: German PV specialist franchise with planning and installation capabilities for residential and commercial solar — directly comparable to Alteno's German-market subsidiary operations via Alteno Solar GmbH.

Broad incumbents

• Siemens Smart Infrastructure: Global broad incumbent providing building energy management, distributed energy, and EV charging infrastructure — competes with Alteno at the larger-scale, integrated-building-energy end of the market.
• ABB: Broad incumbent in electrification, automation, and energy management with PV inverter, storage, and e-mobility offerings — relevant adjacent competitor to Alteno's PV, storage, and EV charging planning work.
• Schneider Electric: Global energy management and automation incumbent overlapping with Alteno's PV, storage, building energy management, and EV charging integration planning activities.
• Bouygues Energies & Services: European broad incumbent in building energy services and renewable infrastructure — comparable to Alteno at the larger-scale energy retrofit and ZEV-equivalent project level across the DACH and French markets.

Regional players

• Megasol Energie: Swiss PV module manufacturer with adjacent project-development and planning services in the DACH market — referenced on Alteno's own projects (Megasol modules used in Muttenz), making it a relevant ecosystem peer in Swiss PV.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/alteno-ag/?viewAsMember=true

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries3 records

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 alteno