Sienersoft AG

What Sienersoft AG does

Sienersoft AG operates a small-scale craft and trades services business based in Braunschweig, Germany, marketed under the "Handwerk & Werkstatt Journal" brand with Stefan Müller identified as the responsible person. The firm offers a portfolio spanning residential and light-commercial services including renovation, repair, new construction support, electrical installation, smart home integration, and security and fire protection systems. Its digital presence is anchored on a website at sienersoft.ch presenting the German-language service catalog, while the operational address is in Braunschweig.

The business serves private households and small commercial customers in the Braunschweig locality on what appears to be a project-by-project basis, with no disclosed subscription, recurring maintenance contract, or platform model. Pricing mechanics are not stated but follow standard regional-trades quoting norms. The service mix aggregates multiple craft disciplines under one operator, providing convenience to customers who would otherwise coordinate several trades.

Headcount is in the 1-10 employee range, consistent with a sole-trader or micro-enterprise structure. The input contains no evidence of external funding, institutional investors, M&A activity, partnerships, multiple locations, franchise arrangements, or proprietary technology platforms. The firm should be read as a regional service operator with a broad service portfolio rather than a scalable enterprise.

Name

Sienersoft AG

Legal name

Handwerk & Werkstatt Journal (operated by Stefan Müller)

Website

https://sienersoft.ch

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

Sienersoft AG operates a regional German craft and trades services business based in Braunschweig, offering residential and light-commercial renovation, repair, electrical, smart home, and security services under the Handwerk & Werkstatt Journal brand led by Stefan Müller.

Ownership category

akta.pro rank

Product category

Home Renovation Services

NAICS

Electrical Contractors and Other Wiring Installation Contractors (238210)

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

Keywords

• Home renovation services
• Electrical installation services
• Commercial construction services
• Smart home installation
• Multi-trade handyman services

Headquarters

HQ city

Biel

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Handyman Services Revenue: The company generates revenue through providing professional handyman services including renovations, repairs, new construction projects, and electrical installations to residential and commercial customers. Services are quoted and delivered on a project basis.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Sienersoft AG operates as a traditional German craft services company providing renovations, repairs, and new construction for residential and commercial customers. The integrated multi-trade offering combines painters, carpenters, and electricians to deliver coordinated single-source project execution, supplemented by specialized services in electrical installations, lighting planning, smart-home wiring, security/fire protection, drywall construction, flooring, and painting.

Product overview

Sienersoft AG operates as a traditional craftsman/handyman company (Handwerk & Werkstatt Journal) providing a comprehensive range of construction and renovation services in Germany. The company offers core services in renovations, repairs, and new construction, supplemented by specialized offerings in electrical installations, lighting planning, emergency power supply, security and fire protection, smart home wiring, drywall construction, floor coverings, painting, and surface treatments. The business operates as an integrated multi-trade provider with painters, carpenters, and electricians working collaboratively under one roof to deliver coordinated project execution. This is not a software or technology product company — all offerings are traditional crafts and construction services.

Differentiator

Problem solved

Functional benefit

Products and services

• Renovierungen (Renovations)

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Porch Group: US home services platform connecting homeowners with home improvement, maintenance, and renovation professionals. Comparable service categories and target customers, though Porch operates as a software-enabled marketplace at substantially larger scale and primarily in North America.
• Angi Inc (formerly Angie's List): Major US home services marketplace connecting homeowners with local service professionals for renovation, repair, and maintenance. Comparable as a digital platform in the home services space, though Angi operates at massive scale in North America and serves a much broader service portfolio.
• TaskRabbit: US-based online and mobile marketplace connecting customers with local Taskers for handyman, cleaning, moving, and home improvement services. Comparable business model and service categories, but operates primarily in North America rather than the German market Sienersoft serves.

Emerging players

• Book a Tiger: German platform for booking home cleaning and household services. Operates in the same German home services market with a similar direct-to-consumer digital model, though focused on cleaning rather than the multi-trade renovation work Sienersoft specializes in.
• Helpling: German home services platform originally focused on cleaning but expanding into broader household services. Comparable as a digital-first home services brand serving German consumers, though Sienersoft's trade-heavy offering differs from Helpling's predominantly cleaning focus.

Direct peers

• Blauarbeit: German platform for hiring tradespeople and handymen for household and commercial jobs. Overlaps directly with Sienersoft's residential handyman services in Germany, though Blauarbeit operates as a marketplace connecting customers to independent tradespeople.
• MyHammer: German online marketplace connecting homeowners with handymen, tradespeople, and renovation contractors. Directly comparable as both serve German residential customers seeking multi-trade renovation, repair, and new construction services, though MyHammer operates as a platform rather than a direct service provider.
• Aroundhome: German marketplace and lead-generation platform for home renovation and energy services including solar, heating, windows, and bathrooms. Comparable target customers (German homeowners undertaking renovation projects) and overlapping service categories, though Aroundhome focuses on intermediation rather than direct execution.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Sienersoft AG