plus3 architekten

What plus3 architekten does

plus3 architekten heberlein buestrich stiebler GdbR is a German civil law partnership founded in 1994 and headquartered in Regensburg, specializing in architectural services for healthcare facilities and public buildings. The firm operates three integrated service lines: Gebäudeplanung (building planning) covering all HOAI Leistungsphasen 1–9 from basic analysis through project supervision, Medizinplanung (medical planning) for coordination of medical and laboratory technical equipment integrated with building design, and Brandschutz (fire protection) for special buildings (Sonderbauten) including hospitals, clinics, and care facilities. With approximately 32 employees and three equal partners (Heinz Heberlein, Jörg Buestrich, Pit Stiebler) all licensed by the Bayerische Architektenkammer, the firm has completed 400+ projects over 30+ years, with more than 80% of its portfolio in the public sector.

The firm's competitive positioning rests on deep healthcare architecture specialization, including expertise in phased construction during ongoing hospital operations, and a TÜV-certified fire protection engineering capability. Customer base includes major Bavarian hospitals (Klinikum Weiden, Krankenhaus Rotthalmünster, St. Anna Krankenhaus Sulzbach-Rosenberg, Klinikum Dritter Orden, MÜNCHENSTIFT), public pension insurance bodies (Deutsche Rentenversicherung Oberbayern, Bayern Süd, Nordbayern), municipal governments (it@M München), and selective commercial clients. Service delivery is project-based and quote-driven, with revenue generated through HOAI-compliant professional services fees.

Go-to-market is sales-led, with direct engagement of enterprise clients in both public procurement processes and private negotiations. The firm has remained bootstrapped throughout its existence with no external funding rounds, no parent company, and full partner ownership. Geographic focus is Germany with concentration in Bavaria. Technology stack comprises standard industry tools including 3D visualization, BIM-like planning approaches, and computer-aided design, with no disclosed AI/ML capabilities. The firm relocated its headquarters to Am Europakanal 31 in Regensburg in March 2019 and continues to actively deliver projects through 2025–2026.

Name

plus3 architekten

Legal name

plus3 architekten heberlein buestrich stiebler GdbR

Website

https://plus3architekten.de

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

plus3 architekten is a Regensburg-based German architectural partnership specializing in healthcare facility and public building design, offering integrated building planning, medical equipment planning, and fire protection services with 30+ years of experience and 400+ completed projects.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural Services (541310)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Healthcare Facility Construction (Hospitals, Clinics, Labs) (IMAFACAD), Senior Living & Assisted Living Facility Construction (IMAFACAJ)

Keywords

• Healthcare architecture services
• Medical facility planning
• Fire protection consulting
• Building design services
• Architectural project management

Headquarters

HQ city

Regensburg

HQ country

Germany

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. Architectural Services: Professional architecture services covering all HOAI Leistungsphasen (service phases) from Grundlagenermittlung (basic analysis) through Objektbetreuung (project supervision). Revenue is generated through project-based fees for building planning, fire protection planning, and medical equipment planning services.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

plus3 architekten provides architectural and planning services for healthcare facilities, public sector buildings and select commercial clients, covering all HOAI service phases (1–9) from basic analysis through project supervision. Core deliverables include building planning (Gebäudeplanung), fire protection concepts (Brandschutz) for special buildings, and in-house medical equipment planning (Medizinplanung) integrated with building design.

Product overview

plus3 architekten is an architectural firm offering three integrated service lines: Building Planning (Gebäudeplanung), Medical Planning (Medizinplanung), and Fire Protection (Brandschutz). Their Building Planning service covers all HOAI Leistungsphasen (1-9) for various project types. Medical Planning is provided in-house since 2016 alongside building planning, covering medical and laboratory technical equipment. Fire Protection services include fire protection concepts, planning, and expert opinions for special buildings, with particular expertise in healthcare facilities. The firm specializes in healthcare construction with over 80% of their portfolio being public sector contracts.

Differentiator

Problem solved

Functional benefit

Products and services

• Gebäudeplanung (Building Planning) Complete architectural services for new buildings, extensions, conversions, modernizations and renovations, covering all HOAI Leistungsphasen (service phases 1–9) from basic analysis (Grundlagenermittlung) to project supervision (Objektbetreuung). Delivered for healthcare, public sector and commercial clients across Germany.
• Brandschutz (Fire Protection) Fire protection concepts, fire protection planning and expert opinions for new buildings and existing structures, focused on Sonderbauten such as clinics, hospitals and care facilities. Includes cost-saving potential analysis, object-related implementation concepts and priority catalogs for remediation of fire protection deficiencies, delivered by TÜV-certified fire protection engineers.
• Medizinplanung (Medical Planning) In-house planning and supervision of medical and laboratory technical equipment as part of building projects, integrating medical technology planning with architectural design from the early planning stages. Provided since 2016 alongside building planning services.

Quantifiable outcome

• More than 80% of portfolio consists of public sector contracts, indicating strong competitive position in government procurement
• +2 more outcomes

Named customers14 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Wörner Traxler Richter Planungsgesellschaft: German architecture and planning firm with healthcare and public-sector building expertise. Comparable to plus3 in German hospital and institutional project focus and HOAI-based service delivery.
• Nickl & Partner Architekten: Munich-based architecture firm specializing in healthcare and research buildings across Germany. Closely comparable to plus3 on healthcare focus, HOAI-based services, and Bavaria geographic concentration, with similar in-house planning integration.
• Heinle, Wischer und Partner: German architecture firm with deep healthcare and educational building expertise. Comparable to plus3 on hospital and institutional project focus, full HOAI service coverage, and public-sector client mix in Germany.
• JSK Architekten: Berlin-based architectural firm with established healthcare and laboratory building practice in Germany. Directly comparable to plus3 on healthcare typology, public-sector clientele, and full HOAI service phases.
• HPP Architekten: Düsseldorf-based architectural firm with one of Germany's strongest healthcare architecture practices, designing hospitals, clinics, and university medical centers. Directly comparable to plus3 in healthcare specialization, project complexity, and German public-sector client base.

Broad incumbents

• gmp · von Gerkan, Marg and Partners: Major Hamburg-based international architectural firm with extensive German and global project portfolio including cultural and public buildings. Comparable to plus3 as a German architectural firm competing for public-sector work, though broader in typology and scale.
• HKS Architects: Large US-based architectural firm with a significant healthcare practice serving global hospital systems. Comparable as a healthcare-architecture specialist, but at significantly larger scale and broader geographic reach than plus3.
• HDR Inc. Global architecture and engineering firm with one of the world's largest healthcare design practices. Comparable to plus3 in healthcare architecture specialization, but operates at much greater scale and global footprint — a competitive threat on large German hospital mandates.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/plus3architekten

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 plus3 architekten