What Funk Cast does

Georg Funk Eisengießerei GmbH & Co. KG (operating as Funk Guss / Funk Cast) is a family-owned iron foundry founded in 1949 and headquartered in Aalen, Baden-Württemberg, Germany. The company specializes in customer-individual cast iron parts produced in gray cast iron (EN-GJL) and nodular/ductile cast iron (EN-GJS), with piece weights ranging from under 80 kg on automated lines up to 9 tonnes in hand molding, and a stated monthly production capacity of approximately 800 tonnes across batch sizes of 1 to 1,000 units. Its manufacturing workflow spans design consulting, model building, core making, molding (fully automatic Heinrich Wagner Sinto line plus hand molding), cold-blast cupola melting at 5 tonnes per hour with wire-feed magnesium treatment for ductile iron, raw-cast post-treatment, and optional thermal post-treatment and outsourced machining for ready-to-install parts. A proprietary Aufspanntechnik (zero-point clamping technology) is integrated directly into cast products to enable approximately 30-second fixture clamping and 5-sided machining, and approximately 15,000 customer-specific models are retained on-site.

Funk Cast generates revenue through B2B direct sales of custom castings, priced per quote based on part complexity, material grade, order volume, and downstream services such as machining and heat treatment, with multi-year contracts referenced in pricing documentation. The go-to-market is sales-led, targeting industrial customers in six verticals: machine tool manufacturing, special machine building, drive and gear technology, food industry/packaging, infrastructure (hydroelectric, locks, sewage), and musical instruments. Distribution is handled by an in-house truck fleet enabling freight-free regional delivery within Germany. Quality management is ISO-certified with TÜV-tested dust extraction, and the workforce of more than 100 skilled workers is largely trained in-house.

The company is privately held as a GmbH & Co. KG under the founding family, with general partner Funk & Co. GmbH. Current managing directors are Daniel Funk B.Sc. and Markus Ill (Dipl.-Ing. (FH)). No institutional investor, private equity, or venture capital ownership was identified, and the company does not publicly disclose revenue. The operating footprint remains single-site in Germany, serving a regional industrial customer base through long-tenured direct relationships.

Name

Funk Cast

Legal name

Georg Funk Eisengießerei GmbH & Co. KG

Website

https://funk-guss.de

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

101–250 employees

Short description

Funk Guss is a family-owned German iron foundry founded in 1949 in Aalen that produces custom gray and ductile cast iron parts, from single pieces to small series up to 9 tonnes, for B2B customers in machine tools, special machinery, drive and gear, food, infrastructure, and musical instruments.

Ownership category

akta.pro rank

Product category

Iron Foundry / Industrial Castings Manufacturing

NAICS

Iron Foundries (331511)

SIC

Iron & Steel Foundries (3320)

akta.pro primary industry

Steel Casting (Continuous Casting, Ingots, Semi-Finished Slabs/Billets/Blooms) (IMAKABAD)

Keywords

• Iron foundry services
• Cast iron manufacturing
• Custom castings
• Gray iron castings
• Nodular cast iron

Headquarters

HQ city

Aalen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Cast Iron Parts Manufacturing and Sales: Custom manufacturing of gray cast iron (GJL/EN-GJL) and nodular cast iron (GJS/EN-GJS) parts for industrial customers. Products are sold as rough castings or machined ready-to-install parts. Revenue is generated through project-based orders ranging from single pieces to small and medium series.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels1 record

Core offering

Funk Cast is an iron foundry that manufactures smelting units and complex, customer-individual castings of cast iron with lamellar graphite. The company produces gray cast iron (EN-GJL) and nodular cast iron (EN-GJS) parts — both rough castings and ready-to-install machined parts — for industrial customers in batch sizes from single pieces to medium series, integrating proprietary zero-point clamping technology directly into its cast products.

Product overview

Funk Guss (Georg Funk Eisengießerei GmbH & Co. KG) is a specialized iron foundry offering a comprehensive, integrated casting service for gray cast iron (Grauguss/EN-GJL) and ductile/nodular cast iron (Sphäroguss/EN-GJS). The company operates a multi-stage manufacturing workflow—consulting, model building, core making, molding, melting, and raw-cast post-treatment—supported by add-on services including design consulting, ready-to-install part machining, thermal heat treatment, logistics, and model storage. Production capacity reaches 800 tonnes per month, with hand molding handling pieces up to 9 tonnes and machine molding producing parts from 10 units upward via automated lines. An innovative zero-point clamping technology (Aufspanntechnik) is integrated into cast products to facilitate faster machining. The portfolio spans multiple industries: machine tool manufacturing, special purpose machinery, power transmission, food packaging, infrastructure (hydroelectric, locks, sewage), and musical instruments.

Differentiator

Problem solved

Functional benefit

Products and services

• Maschinenformteile (Machine-Molded Cast Parts)

Quantifiable outcome

• 30-second clamping time with zero-point system
• +3 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Nearby Model Building CompaniescoreImplementation/ SI/ Consulting PartnerModels are manufactured by two experienced model building companies in the immediate vicinity of the foundry. These partners are very flexible, enabling rapid prototype castings within short timeframes.

Scale indicators9 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Leipziger Eisen- und Stahlwerke GmbH: German foundry producing cast iron and steel components for machinery and infrastructure. Comparable in custom, small-to-medium series iron castings for industrial applications.
• Buderus Guss GmbH: German iron foundry based in Wetzlar producing ductile and gray iron castings for similar industrial customers. Directly comparable as a family/Mittelstand iron foundry serving German Maschinenbau with comparable part-weight ranges.
• Siempelkamp Giesserei GmbH: German heavy foundry producing large, complex iron and steel castings up to several hundred tonnes. Comparable in handling heavy, demanding castings for industrial OEMs and infrastructure customers.
• Eisenwerk Würth GmbH: Specialized German iron foundry producing complex cast iron parts for machine tools, drives, and industrial machinery. Closely comparable business model and customer verticals to Funk Cast.
• Eisenwerk Brühl GmbH: German iron foundry with a long history of producing gray and ductile iron castings for industrial customers. Comparable as a mid-sized specialized iron foundry in the German Mittelstand.

Broad incumbents

• Georgsmarienhütte GmbH: Integrated German steel and iron producer with significant foundry operations serving machinery and automotive customers. Larger, broader competitor operating in adjacent casting categories.
• Zollern GmbH & Co. KG: German industrial group with a precision castings division producing complex metal components for machinery, aerospace, and industrial customers. Comparable in producing high-complexity, lower-volume cast parts.

Regional players

• Duktus GmbH: German cast iron pipe and fitting manufacturer. Comparable regional player using iron foundry technology but focused on infrastructure pipe products rather than custom industrial castings.

Others

• Heinrich Wagner Sinto (HWS): Manufacturer of molding lines and foundry equipment; Funk Cast operates an HWS fully-automatic molding line. Relevant as a key equipment supplier and ecosystem participant in the German foundry industry.
• ASK Chemicals GmbH: Global supplier of foundry consumables (binders, coatings, feeders) headquartered in Germany. Adjacent ecosystem participant whose Novanol/Novanolverfahren-style binder systems support iron foundry operations like Funk Cast's.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

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 Funk Cast