ASI Anlagen, Service, Instandhaltung

What ASI Anlagen, Service, Instandhaltung does

ASI Anlagen, Service, Instandhaltung GmbH is a Thuringian full-service building technology company headquartered at Göschwitzer Str. 22, 07745 Jena, Germany, founded in 1995 and registered as a private limited liability company (GmbH) under HRB 209609 at Amtsgericht Jena. The company operates as a 'Komplett-Dienstleister' bundling six integrated service divisions — HVAC (Heizung-Lüftung-Sanitär), Electrical and Security Technology (up to 30 kV), Refrigeration Technology, Pipe Systems and Welding, Painting/Lacquering, and Security Services — under one roof, together with an in-house 24/7 SL24 service control center that receives security, HVAC, refrigeration, and electrical fault alerts and dispatches coordinated response. Its technical stack spans conventional building-automation protocols (EIB, KNX), photovoltaic systems, thermography, fiber-optic splicing with OTDR measurement, and intrusion/fire alarm systems.

The customer base spans technology and industrial companies, research and science institutions in Jena, public buildings and municipalities, housing management companies (Wohnungswirtschaft), and private residential customers — all within a tightly bounded 50km regional radius around Jena, with 98% of construction sites accessible as daily commutes (no overnight Montage travel). Revenue is generated through professional services (installation, commissioning, maintenance, repair), recurring maintenance contracts, and on-call/standby services with time-dependent compensation; pricing is project- and contract-specific and not publicly disclosed. The company employs approximately 400 staff across three Jena locations, including 50 apprentices across nine vocational programs, supported by an in-house training workshop (Lehrwerkstatt) and partnerships with SBSZ Jena-Göschwitz and Andreas-Gordon-Schule Erfurt. Its go-to-market is sales-led and relationship-driven, with marketing effort concentrated on employer branding (asi-karriere.de careers portal, Facebook, Instagram, YouTube) rather than customer-acquisition channels; named customer logos are not publicly disclosed.

Name

ASI Anlagen, Service, Instandhaltung

Legal name

ASI Anlagen, Service, Instandhaltung GmbH

Website

https://asi-karriere.de

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

101–250 employees

Short description

ASI Anlagen, Service, Instandhaltung GmbH is a Thuringian full-service building technology provider founded in 1995 in Jena, Germany, employing ~400 staff across HVAC, electrical, security, refrigeration, painting, and pipe-trade divisions, plus a 24/7 SL24 service control center, serving industrial, research, public-sector, and residential customers within a 50km regional radius.

Ownership category

akta.pro rank

Product category

Building Technical Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Services-To Dwellings & Other Buildings (7340), Services-Facilities Support Management Services (8744)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industry

Insulation, Scaffolding & Access Services (ISA) (IMAIACAF)

Keywords

• Building technical services
• HVAC installation maintenance
• Electrical security systems
• Facility management services
• Industrial building maintenance

Headquarters

HQ city

Jena

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Others

Revenue model

1. Building Systems Installation Services: Revenue is generated through installation, maintenance, and repair services for building technical systems including HVAC, electrical, security technology, refrigeration, and painting. Services are provided across residential, commercial, industrial, and public sectors. The company operates as a 'Komplett-Dienstleister' (complete service provider) offering all trades from a single source.
2. Kundendienst / Service (Customer Service & Maintenance): Ongoing maintenance, repair and servicing contracts for installed building systems, providing recurring service revenue alongside project-based installation work.
3. Bereitschaftsdienst / On-Call Service: Emergency and on-call service for building technical systems, compensated through attractive standby allowances and time-dependent fees, generating revenue from urgent response services.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

ASI is a full-service provider ('Alles aus einer Hand') delivering building technical services from a single source. The company installs, commissions, maintains and repairs HVAC (heating, ventilation, sanitary), electrical and security technology, refrigeration, painting/drywall, and physical security services for industrial, commercial, public-sector, residential property managers and private customers across the Jena region. Service delivery is supported by an in-house 24/7 service control center (SL24) and an on-call (Bereitschaftsdienst) team.

Product overview

ASI Anlagen, Service, Instandhaltung is a full-service building technology company offering comprehensive facility management services from a single source. The company operates six integrated service divisions: Heating-Ventilation-Sanitary (HLS), Electrical and Security Technology, Painting Services, Security Services, and Office Administration. These divisions work together to provide complete building technical services including installation, maintenance, and repair of HVAC systems, electrical installations, security systems, and building finishing work. The company employs approximately 400 workers across three locations in Jena, serving both commercial and residential customers in the region.

Differentiator

Problem solved

Functional benefit

Products and services

• Heizung-Lüftung-Sanitär (HLS) Services

Quantifiable outcome

• 98% of construction sites within 50 km of Jena, enabling same-day commuting rather than overnight travel
• +5 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Staatliches Berufsbildendes Schulzentrum Jena-Göschwitz (SBSZ)coreOthersVocational school partnership for technical apprenticeships. The school is located in relative proximity to ASI headquarters and serves most of the company's apprentices. The spatial closeness allows apprentices to visit the company during breaks to handle administrative matters or complete training records. Apprentices in technical trades (Elektroniker/in für Energie- und Gebäudetechnik, Anlagenmechaniker/in SHK, Industrieelektriker/in) attend this school.
• Staatliches Berufsbildendes Schulzentrum Jena-Göschwitz (SBSZ)coreOthersPrimary vocational school for technical apprentices (electronics, HVAC, industrial electrician). Located near ASI headquarters in Jena-Göschwitz.
• Andreas-Gordon-Schule ErfurtminorOthersVocational school for the Informationselektroniker/in (information electronics) apprenticeship specializing in fire and intrusion alarm systems. Located in Erfurt. ASI covers accommodation costs for apprentices at a nearby student residence during school weeks, eliminating the need for daily commuting. This enables ASI to recruit apprentices from beyond the Jena region for this specialized trade.
• HWK Gera (Handwerkskammer Gera)minorOthersLinks provided for multiple apprenticeship programs reference the HWK Gera (Chamber of Crafts Gera) as the relevant craft authority, including Anlagenmechaniker/in SHK, Elektroniker/in für Energie- und Gebäudetechnik, and Informationselektroniker/in.
• IHK Gera (Industrie- und Handelskammer Gera)minorOthersLinks provided for the Industrieelektriker/in apprenticeship reference the IHK Gera (Chamber of Industry and Commerce Gera) as the relevant authority.
• Förderverein Hospiz Jena e.V.minorOthersASI supports the children's grief support group (Kindertrauergruppe) of the Förderverein Hospiz Jena. Funding enabled a weekend trip for children who have lost a close family member to a youth hostel in Plothen, combining recreation with grief counseling activities. The company provides ongoing financial support.
• Elterninitiative für krebskranke Kinder Jena e.V. / Haus EKKSteinminorOthersASI contributed donations enabling the construction and ongoing operation of Haus EKKStein, a 500 m² facility on the new Jena clinic campus providing a welcoming environment for families with children undergoing cancer treatment. The facility includes play rooms, fitness rooms, snoezelen rooms, and creative workshops.
• Junior Caputs Jena (Rollstuhlbasketball)minorOthersASI supports the children's wheelchair basketball team (Junior Caputs Jena) through donations that funded the acquisition of specialized children's sports wheelchairs and a bus for transporting children to training sessions and competitions.
• Science City Jena e.V. (Basketball)minorOthersASI sponsors the youth basketball program of Science City Jena e.V., one of Thuringia's leading basketball clubs in both competitive and recreational sports. The youth development foundation is the school program with numerous after-school basketball clubs, with weekly training for primary school children.
• KSC Motor Jena (Ringen/Wrestling)minorOthersASI has supported the wrestlers of KSC Motor Jena for many years. Wrestling in Jena has a 100+ year tradition, and ASI's funding helps make the sport accessible to a wide range of children and adolescents, supporting character development values including fairness, discipline, and respect.
• CreditreformminorOthersCreditreform issued a workplace award recognizing ASI as a Mittelstand employer. The award is displayed on the careers website footer as a reputational signal.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Piepenbrock: German family-owned facility services group with full-service MEP, security, cleaning and building maintenance offerings. Highly comparable 'everything from a single source' model and similar Mittelstand positioning.
• Kötter Services: German security and facility services provider combining guarding, alarm receiving and technical building services. Comparable in the integrated security + technical trades bundle.
• Gegenbauer: Berlin-based facility services group providing building technical management, security and maintenance. Comparable multi-trade integrated offering to public and commercial real estate customers.
• Wisag: One of Germany's largest facility services providers offering HVAC, electrical, security and building technical services. Directly comparable in service mix (MEP, security, technical FM) though operating at national scale rather than a single region.
• SPIE Germany: European technical facility services provider specializing in HVAC, electrical, security and energy systems for buildings and infrastructure. Closest comparable in technical-trades scope and customer segments.
• Caverion Deutschland: German arm of Nordic technical FM group providing HVAC, electrical and building automation services. Directly comparable in MEP-heavy technical services to industrial and public-sector clients.

Broad incumbents

• ENGIE Deutschland: Energy and technical services provider in Germany covering HVAC, building automation, energy efficiency and facility management. Broad incumbent overlapping with ASI on technical trades, particularly in energy transition-related services.
• STRABAG Property and Facility Services: Real-estate-focused facility management arm of STRABAG providing technical building services, MEP and maintenance. Comparable offering within a much larger real estate and construction ecosystem.
• Sodexo Germany: German operations of global FM and services group offering integrated facility management including technical services. Adjacent competitor in public-sector and industrial tenders.
• Dussmann Group: Large multi-service FM group offering facility management, security, cleaning and technical building services. Overlaps with ASI on technical trades but serves a much broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ASIGmbH
• Facebookfacebook.com/asijenakarriere
• Instagraminstagram.com/asi_jena
• LinkedInlinkedin.com/company/asi-jena

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 ASI Anlagen, Service, Instandhaltung