GSAK

What GSAK does

GSAK Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH & Co. KG is the designated municipal waste collection, street cleaning, and winter road maintenance provider for the City of Krefeld, Germany. Founded in 1994 as a spin-off from the city's vehicle fleet department (Amt 70), the company operates under a mandate from Kommunalbetrieb Krefeld AöR and is jointly owned by municipal utility holding company SWK AG and EGN Entsorgungsgesellschaft Niederrhein mbH. Its service scope covers approximately 57,169 residual waste containers, 51,094 paper containers, and 37,444 bio-waste containers across 800 km of road network, supported by a fleet of 37 waste collection vehicles, 7 large and 18 small sweeping machines, and a 225-person workforce (195 in field operations, 30 in administration) based at a modern operational facility in Krefeld-Linn.

GSAK's service portfolio is organized into two categories. Core municipal services include scheduled waste collection, street cleaning, winter service, bulky waste pickup (Sperrmüll), a Wertstoffhof recycling center with real-time wait time display, hazardous waste mobile collection, and a Schadstoffannahmestelle for household hazardous materials. Individually billed services include container rental (3–20 m³ for construction and renovation waste), apartment and property clearances, 24/7 emergency environmental response (oil spills, fire damage, hazardous material incidents), event container rental, and consulting services for housing companies and property management firms. Pricing for optional services is publicly listed (e.g., 3 m³ containers from €179–€359 depending on waste type), while core household waste disposal is funded through regulated municipal fees.

GSAK generates revenue through a hybrid model combining regulated municipal fee income (subscription/recurring) for mandated household services with transaction-based fees for container rental, clearance, emergency response, event containers, and property management consulting. Customer acquisition is driven by municipal obligation rather than marketing. Distribution is multi-channel: a physical service center (Ostwall 148), the SWK mobile app (which integrates waste collection with energy contracts and mobility services), the gsak.de online portal, phone service lines, the on-site Wertstoffhof, mobile hazardous waste collection (Schadstoffmobil), and seasonal green waste collection routes. The company's digital ecosystem is tied to the SWK App, which serves as the primary citizen touchpoint and includes AI-based wait time estimation at the recycling center.

Name

GSAK

Legal name

GSAK Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH & Co. KG

Website

https://gsak.de

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

GSAK is the municipal waste collection, street cleaning, and winter service provider for the City of Krefeld, Germany, operating under mandate from Kommunalbetrieb Krefeld AöR. It serves approximately 57,000+ households with a 225-person workforce and is jointly owned by SWK AG and EGN.

Ownership category

akta.pro rank

Product category

Municipal Waste Management and Street Cleaning Services

NAICS

Solid Waste Collection (562111), Other Waste Collection (562119)

SIC

Refuse Systems (4953)

akta.pro industry

PRIMARYEUAIAAAC

Commercial MSW Collection (Front/Rear-Load)

Energy, Utilities & Environment/Environmental Services (Waste Management, Recycling & Remediation)/Municipal Solid Waste (MSW) Collection & Hauling

Keywords

• Municipal waste collection
• Street cleaning services
• Winter road maintenance
• Recycling center operations
• Container rental services

Headquarters

HQ city

Krefeld-Linn

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Municipal waste collection fees: Core revenue from municipal waste collection services contracted by Kommunalbetrieb Krefeld AöR. Fees are levied on households for waste containers and collection services as determined by municipal waste regulations.
2. Container rental services: Private customers in Krefeld can rent containers of various sizes (3-20 m³) for construction, renovation, and waste disposal at fixed prices. Revenue from container placement, rental, and disposal fees.
3. Clearing and disposal services: Full-service apartment and property clearing, including household dissolutions, 'Messie' apartment cleaning, and disinfection services. Revenue from service fees based on scope and volume.
4. Emergency environmental management: 24/7 emergency response services for environmental accidents including oil spills, water contamination, fire damage, and hazardous material incidents. Revenue from emergency response service contracts.
5. Event container services: Provision of event containers for larger events. Containers delivered to specified locations and charged per container used.
6. Property management services: Consulting and services for housing companies, property management, and property owners including waste disposal concepts, container optimization, underground systems setup, and winter maintenance.

Pricing tiers

Go-to-market motion1 record

Distribution channels8 records

Marketing channels8 records

Core offering

GSAK is the municipal service provider for Krefeld, delivering household waste collection from over 145,000 containers (residual, paper, bio), street cleaning across 800 km of roads, and winter snow-clearing and gritting services. It also offers container rental (3-20 m³), apartment and property clearance, 24/7 emergency environmental response, event containers, and tailored waste-management consulting for housing companies and property managers. Customers access services through the SWK App, online portal, Wertstoffhof drop-off, phone hotlines, and a physical service center.

Product overview

GSAK operates as a municipal waste management and street cleaning company serving Krefeld, Germany. The core service portfolio consists of waste collection (Abfallsammlung) from household bins, street cleaning (Straßenreinigung), and winter services (Winterdienst), supported by a fleet of 37 collection vehicles and various specialized equipment. The digital product ecosystem centers on the SWK App—a unified mobile application that integrates waste collection calendar with reminders, bulky waste online scheduling (Sperrmüll Online), recycling center information with real-time wait times, hazardous waste mobile collection schedules, and mobility services including public transit tickets and car sharing. Individual services include container rental (Containerdienst), property clearance (Entrümpelungen), 24/7 emergency environmental response (Notfallmanagement), event container services, and educational programs for children. The company maintains a modern facility in Krefeld-Linn with waste reception, hazardous waste station, and salt storage for winter operations.

Differentiator

Problem solved

Functional benefit

Products and services

• Municipal Waste Collection (Abfallsammlung)
• Street Cleaning (Straßenreinigung)
• Winter Service (Winterdienst)
• Wertstoffhof (Recycling Center)
• Schadstoffmobil (Hazardous Waste Mobile Collection)
• Mobile Green Waste Collection
• Sperrmüll Online (Bulky Waste Collection)
• Container Service (Containerdienst)
• Clearance Services (Entrümpelungen)
• Emergency Management (Notfallmanagement)
• Event Containers (Veranstaltungstonnen)
• Property Management Services (Wohnungswirtschaft)
• Preschool Educational Program (GSAK für Vorschulkinder)

Quantifiable outcome

• Electric waste collection vehicles deployed (2 E-Abfallsammler, 2 Twizy, 3 Glutton electric waste vacuum cleaners, 4 E-Worker for weed control, 2 electric pickup trucks, 1 E-Multilift)
• +1 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Kommunalbetrieb Krefeld AöRcoreStrategic or Co-development PartnerMunicipal enterprise that has commissioned GSAK to collect various waste types and transport them for proper disposal or recycling. GSAK operates as the commissioned agent for waste collection and street cleaning services under municipal mandate.
• EGK Entsorgungsgesellschaft Krefeld GmbH & Co. KGcoreStrategic or Co-development PartnerSister company handling thermal waste utilization. GSAK delivers residual waste to the MKVA (waste and sewage sludge incineration plant) of EGK for energy recovery. Joint infrastructure for waste processing.
• Schönmackers Umweltdienste GmbH & Co. KGminorChannel Partner/ Reseller/ DistributorSubcontractor for dual system yellow bag/container collection in Krefeld. Handles Light Packaging (LVP) collection contracted by RMG Rohstoffmanagement GmbH.
• RemondisminorChannel Partner/ Reseller/ DistributorProvides and services glass containers in Krefeld. Handles emptying of public glass collection containers.
• EGN Entsorgungsgesellschaft Niederrhein (Viersen)minorStrategic or Co-development PartnerEGN facility in Viersen where some GSAK training and operations are conducted in cooperation, particularly for environmental technology apprentices.

Scale indicators15 records

Recent moves6 records

Expansion highlights5 records

Market position

Strengths5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/swkkrefeld
• Facebookfacebook.com/SWK.Krefeld
• LinkedInlinkedin.com/company/gsak
• Instagraminstagram.com/swk.krefeld/?hl=de

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 GSAK