What Hölzl does

Hölzl GmbH is a family-owned German service company founded in 1981 and headquartered in Schonstett-Rauhöd, Bavaria. The company provides mobile heavy-duty equipment services — primarily suction excavation, fermenter cleaning for biogas plants, slurry mixing, separation, and pumping — to customers in Germany and across Europe. Its operations target situations where customers' own equipment is insufficient, deploying specialized vehicles and trained personnel on a project basis with on-site consultation.

The company operates a specialized fleet anchored by five 750 HP CapGeo suction excavators from Cappellotto — described as unique in the German-speaking region — alongside three RSP suction excavators (510 HP, up to 30m suction depth, 40,000 m³/h air capacity), Börger Bioselect RC 150 separator vehicles mounted on Mercedes 3-axle trucks, high-power slurry mixers with 370° action radius and 37m reach, and hydraulic eccentric screw pumps capable of moving liquids with up to 14% dry matter content over distances up to 150m. The fleet is supported by an in-house workshop and certified under German regulations including Entsorgungsfachbetrieb (since 2024), WHG (through 2026), and TRAS 120.

Hölzl's go-to-market is sales-led and project-based: customer acquisition relies on direct outreach, on-site consultation led by managing director Josef Hölzl and sales/dispatch lead Markus Kiffe, custom project quotes, and a 24/7 emergency hotline. The customer base spans four horizontal segments — biogas plant operators (primary), agricultural/livestock farms, civil engineering/construction, and industrial/municipal operators — with services quoted per engagement and no public pricing. The company is privately held with no external investors identified, and has operated as a GmbH since its 2018 restructuring.

Name

Hölzl

Legal name

Hölzl GmbH

Website

https://hoelzl.de

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

1–10 employees

Short description

Hölzl GmbH is a family-owned Bavarian service company operating a specialized fleet of 750 HP suction excavators, RSP excavators, separators, mixers, and pumps to deliver heavy-duty suction excavation, fermenter cleaning, and slurry services to biogas plant operators, agricultural customers, and civil engineering firms across Germany and Europe.

Ownership category

akta.pro rank

Product category

Industrial Cleaning & Environmental Services

SIC

Refuse Systems (4953)

akta.pro primary industry

Specialty Deep Cleaning (Duct/Kitchen Exhaust/Pressure Washing) (IMAIADAN)

Keywords

• Suction excavation services
• Fermenter cleaning services
• Biogas plant maintenance
• Slurry mixing pumping
• Mobile heavy equipment

Headquarters

HQ city

Schonstett

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Suction Excavator Services: Hölzl provides on-demand suction excavation services using their fleet of specialized vehicles. Customers (biogas plant operators, farmers, civil engineering firms) engage Hölzl when their own equipment is insufficient for the task at hand. Services include material extraction from biogas plants, construction sites, and industrial facilities. Pricing is quoted based on specific job requirements with transparent, fair offers.
2. Fermenter Cleaning Services: Complete fermenter cleaning service for biogas plants, including on-site consultation, performance of the cleaning using CapGeo specialty vehicles, and adherence to all safety standards. This is described as a 'Komplettservice' (complete service) covering the full scope from consultation to project completion.
3. Mixing, Separation and Pumping Services: Mobile mixing (slurry mixers), separation (separator vehicles), and pumping services (eccentric screw pumps) for agricultural and biogas customers. These services are deployed as standalone offerings or as part of comprehensive biogas plant support. Revenue is generated per deployment/service event.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Hölzl GmbH provides mobile heavy-equipment services for biogas plants, agriculture, civil engineering, and industrial clients across Germany and Europe. The company deploys its own fleet of specialized vehicles — including five 750 HP CapGeo suction excavators, RSP suction excavators, Börger separator vehicles, slurry mixers, and eccentric screw pumps — along with trained maschinists to customer sites. Service lines cover suction excavation, complete fermenter cleaning for biogas plants, slurry mixing, digestate separation, and long-distance slurry pumping, delivered on a project-quoted basis with 24/7 emergency availability.

Product overview

Hölzl GmbH is a specialized service company offering mobile equipment services for biogas plants, agriculture, construction, and industrial applications. The portfolio consists of five core service offerings: Saugbagger-Service (suction excavator service), Fermenter-Reinigung (fermenter cleaning), Mixen (slurry mixing), Separieren (separation), and Pumpen (slurry pumping). These services operate from a specialized fleet of vehicles including 750 PS CapGeo suction excavators, RSP suction excavators, Börger separator systems, and hydraulic slurry pumps. The services are designed to complement customers' existing equipment by providing additional power and capacity when needed, delivered by a qualified team of machinery operators with their own workshop facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Saugbagger-Service (Suction Excavator Service) Mobile suction excavation service featuring five 750 HP CapGeo specialty vehicles and multiple RSP suction excavators. Handles earth excavation, debris removal, and material extraction for construction, biogas, agricultural, and industrial applications. Delivered with trained maschinists and on-site consultation.
• Fermenter-Reinigung (Fermenter Cleaning) Complete fermenter cleaning service for biogas plants using CapGeo special suction excavators. Provides end-to-end service including consultation, needs assessment, and execution under gas-protected safety conditions. Positions Hölzl as Europe-wide market leader in fermenter cleaning.
• Mixen (Slurry Mixing Service) Mobile slurry mixing service using powerful Güllemixer units with 370° action radius and 37m reach. Agitates floating layers, crusts, and sediments in biogas digesters, slurry tanks, treatment plants, and landfills to improve biogas yield.
• Separieren (Separator Service) Mobile digestate and slurry separation service using Börger Bioselect RC 150 separators on Mercedes 3-axle trucks. Separates liquid and solid phases with solid matter content up to 35% and throughput up to 250 m³/h.
• Pumpen (Slurry Pumping Service)

Quantifiable outcome

• Slurry storage capacity increase of up to 20% through separation
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators9 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Bauer AG: German foundation engineering and specialty construction equipment manufacturer. Broader incumbent in specialty construction services and equipment, comparable to Hölzl's civil engineering suction excavation services through shared end customer base.
• Zunhammer GmbH: German manufacturer of slurry tankers, pumps, and biogas/agricultural technology with related services. Comparable to Hölzl through shared focus on slurry handling, pumping, and biogas plant support, though Zunhammer primarily manufactures while Hölzl provides services.
• Wacker Neuson SE: German construction equipment manufacturer with broad portfolio of compact machinery for construction, agriculture, and landscaping. Comparable to Hölzl through shared customer base in civil engineering and infrastructure projects, though Wacker Neuson primarily sells equipment while Hölzl provides services.
• Fliegl Agrartechnik GmbH: German manufacturer of agricultural trailers, slurry technology, and biogas equipment with service components. Comparable to Hölzl through shared focus on biogas plant support and agricultural material handling in the DACH region.
• Vogelsang GmbH & Co. KG: German manufacturer of pumps, separators, shredders, and spreading technology for biogas and agricultural applications. Highly comparable to Hölzl's separation and pumping services through overlapping product categories (Börger vs. Vogelsang separators), with Vogelsang being a broader technology provider.

Direct peers

• KMG Kanal-Müller Gruppe: German group providing sewer cleaning, suction services, and industrial cleaning across multiple locations in Germany. Direct service-side comparison to Hölzl with similar mobile equipment fleet deployment model and customer segment overlap in industrial/municipal cleaning.
• Braumann GmbH: Austrian manufacturer of suction excavators and provider of excavation services. Comparable to Hölzl through direct overlap in suction excavation technology and services, operating in the adjacent Austrian market within the DACH region.
• Müller Umwelttechnik GmbH & Co. KG: German provider of industrial cleaning, tank cleaning, and environmental services. Direct competitor to Hölzl in industrial deep cleaning and waste management services for industrial/municipal customers.

Others

• Börger GmbH: German manufacturer of pumps and separation technology (including the Bioselect RC 150 used by Hölzl). Supplier relationship to Hölzl and adjacent technology peer in the separation/pumping space, but does not directly compete as service provider.
• Zeppelin Baumaschinen GmbH: German exclusive dealer and rental provider for Caterpillar construction equipment. Comparable to Hölzl through shared end customer base in German civil engineering and infrastructure projects, but operates as equipment distributor rather than specialty service provider.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCAJRJ11sdpLWEsN7P0ng3vQ
• LinkedInlinkedin.com/company/h%C3%B6lzl

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Hölzl