Development and manufacture of carbon-based solutions made from specialty graphite, carbon fibers and composites.
SGL Carbon SE
Wiesbaden (Head Office) · Meitingen · Bonn · Wackersdorf · Willich · Limburg · Chedde (FR) · Madrid (ES) · Ried & Ort im Innkreis (AT) · Nowy Sacz (PL) · Verdello (IT) · Shanghai & Yangquan (CN) ·New on Amplifa
SGL Carbon at a Glance
SGL Carbon SE is a technology-based company for carbon-based solutions with around 3,800 employees at 28 locations in Europe, North America and Asia. Its core business comprises the business areas Graphite Solutions (fine-grain graphite SIGRAFINE for the semiconductor, photovoltaic and metal industries), Fiber Composites (carbon fibers SIGRAFIL, textile materials SIGRATEX, prepregs SIGRAPREG as well as fiber composite components for high-volume and small-batch production) and Process Technology (large-scale plants, heat exchangers, columns, pumps and sealing materials for corrosive applications). The company covers the entire value chain – from raw material through intermediate stages to the finished component, including carbonization and graphitization as contract manufacturing, 3D printing (CARBOPRINT, SICAPRINT), engineering, assembly and lifecycle services. Markets served include mobility, semiconductor technology, LED, solar and wind energy, energy storage, fuel cells, chemicals, pharmaceuticals and other industrial applications. In 2025, revenue was 850 million euros. The headquarters has been located in Wiesbaden since 2012; the largest production site is Meitingen (Bavaria), followed by Bonn as the largest GS site.
- Site
- Wiesbaden
- Processes
- Carbonization and graphitization as a contract manufacturing service (under inert gas atmosphere), Production of fine-grain graphites (isostatically pressed, extruded, vibration-compacted,, Production of textile materials (plies, woven fabrics, nonwovens, stacks) from carbon, glass, flax, Production of pre-impregnated materials (prepregs, TowPregs, adhesive films), Production of fiber composite components (Composite Solutions), Construction of large-scale plants and apparatus for corrosive applications (heat exchangers,, Production of PTFE linings (paste-extruded POLYFLURON linings for columns,, Production of sealing materials from flexible/expanded graphite
- Materials
- Specialty graphite / fine-grain graphite (SIGRAFINE), Expanded graphite (SIGRAFLEX, SIGRATHERM, ECOPHIT), Carbon fibers (SIGRAFIL), Oxidized PAN fibers (PANOX), Carbon fiber-reinforced carbon (SIGRABOND), Carbon fiber-reinforced silicon carbide (SIGRASIC), Silicon carbide (SICABON, SICAPRINT), PTFE (POLYFLURON, FLUROFLEX)
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 50001:2018, ISO 37301:2021 (Compliance Management), ISO 37001:2016 (Anti-Corruption), IATF 16949:2016, EN/AS 9100, OEKO-TEX STANDARD 100, PED 2014/68/EU Annex III Module H, EN 9100
- Founded
- 1992
- Employees
- 3800
- Industries
- Automotive, Aerospace, Semiconductor Technology, LED/Compound Semiconductors, Solar/Photovoltaics, Wind Energy
- 01
Raw material (PAN, carbon)
- 02
Carbon fiber and graphite production
- 03
Carbonization/graphitization, weaving, prepreg production
- 04
Component and plant manufacturing
- 05
Assembly, commissioning, lifecycle services
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Carbonization and graphitization as a contract manufacturing service (under inert gas atmosphere)Heat treatment | – | – | – | – | carbon-based materials, graphite |
| Production of fine-grain graphites (isostatically pressed, extruded, vibration-compacted,Casting | – | – | – | – | SIGRAFINE fine-grain graphite, carbons |
| Production of textile materials (plies, woven fabrics, nonwovens, stacks) from carbon, glass, flaxPlastics | – | – | – | – | carbon fibers, glass fibers, flax fibers, aramid fibers |
| Production of pre-impregnated materials (prepregs, TowPregs, adhesive films)Plastics | – | – | – | – | carbon fibers, glass fibers, aramid fibers, natural fibers, epoxy resin, phenolic resin |
| Production of fiber composite components (Composite Solutions)Plastics | – | – | – | – | carbon fiber-reinforced plastic, glass fiber-reinforced plastic, aramid fibers |
| Construction of large-scale plants and apparatus for corrosive applications (heat exchangers,Assembly | – | – | – | – | graphite (DIABON), silicon carbide (SICABON), PTFE (POLYFLURON), exotic metals, SIGRABOND CFC |
| Production of PTFE linings (paste-extruded POLYFLURON linings for columns,Plastics | – | – | – | – | PTFE, steel |
| Production of sealing materials from flexible/expanded graphiteSurface | – | – | – | – | expanded graphite (SIGRAFLEX), stainless steel foil |
| Production of carbon-ceramic brake discs (joint venture Brembo SGL Carbon Ceramic Brakes)Casting | – | – | – | – | SIGRASIC carbon fiber-reinforced silicon carbide |
| Production of friction materials and friction components (carbon fiber fabric in synthetic resinPlastics | – | – | – | – | carbon fiber fabric, synthetic resin (thermosets) |
| 3D printing / additive manufacturing (CARBOPRINT, SICAPRINT)Additive | – | – | – | – | graphite, silicon carbide |
| Weaving of carbon fibers into plies and nonwoven complexes (including recycling machines forPlastics | – | – | – | – | carbon fibers, glass fibers |
| Production of prepregs (woven fabrics, nonwovens, nonwovens, TowPregs, adhesive films)Plastics | – | – | – | – | carbon fibers, glass fibers, aramid fibers, epoxy resin, phenolic resin |
| Processing of SIGRATEX textiles into components (prepreg production, wet laminating, infusion,Plastics | – | – | – | – | carbon fibers, glass fibers, flax fibers, aramid fibers |
| Engineering and construction of complete plants (basic engineering through customer-specificEngineering | – | – | – | – | graphite, SiC, PTFE, exotic metals |
| Production of carbon fibers (SIGRAFIL continuous and short-cut fibers, PANOX oxidized PAN fibers)Plastics | – | – | – | – | PAN (polyacrylonitrile), carbon, acrylonitrile |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Isostatic press | SGL Carbon | 1 | – | – | Bonn, Germany |
| Weaving looms (fabric production) | – | – | – | – | – |
| Recycling machines for plies/NCF/preforms | – | 2 | – | – | Wackersdorf, Germany |
Additional services
Reference customers
Quality and Certification
The sites are certified to ISO 9001; several FC sites are additionally certified to IATF 16949, ISO 14001, ISO 45001 and ISO 50001; the GS/PT area holds PED 2014/68/EU Module H and Willich holds EN 9100 certification.
| Evidence | Meitingen | Bonn | Wackersdorf | Willich | Ried | Ort im Innkreis |
|---|---|---|---|---|---|---|
| ISO 9001:2015 | ||||||
| IATF 16949:2016 | ||||||
| ISO 14001:2015 | ||||||
| ISO 45001:2018 | ||||||
| ISO 50001:2018 | ||||||
| EN 9100 |
Company History Milestones
- 1878
Start of carbon production by Gebr. Siemens & Co.
- 1920
Branch plant in Meitingen
- 1985
Merger of Siemens Plania and Hoechst AG, Griesheim to form SIGRI GmbH
- 1989
Merger of SIGRI with Ringsdorff, Bonn
- 1992
Founding of SGL through merger of SIGRI with Great Lakes Carbon, USA
- 1995
IPO of SGL Carbon AG in Frankfurt am Main
- 2008
Conversion into an SE; JV with Benteler
- 2009
JV with BMW Group; JV with Brembo (carbon-ceramic brake discs)
- 2015
Strategic realignment toward mobility, energy, digitalization
- 2017
Sale of the Performance Products business unit; acquisition of Benteler-SGL
- 2018
New brand appearance
- 2021
EUR 42.9 million in IPCEI funding for graphite anode materials
- 2022
100 years of the Meitingen site
- 2026
Merger of CF and CS into the Fiber Composites business area