What INDEX does

INDEX is a privately held German manufacturer of CNC turning machines, automatic lathes, multi-spindle machines, and turn-mill centers, operating globally under the INDEX and TRAUB brands. Founded in 1914 in Esslingen, Germany by Hermann Hahn, the company is one of the largest autonomous and independent turning machine builders in the world, with a 110-year history as of 2024, 85% owned by the non-profit Eugen and Irmgard Hahn Foundation. Headquartered legally as INDEX-Werke GmbH & Co. KG Hahn & Tessky in Esslingen, Germany, INDEX maintains 5 production facilities (Esslingen, Deizisau, and Reichenbach in Germany; Sorocaba, Brazil; plus China and Slovakia sites), 7 international sales and service companies, and a broader global network of approximately 80 sites. The US subsidiary (INDEX Corporation, Noblesville, Indiana) serves the United States and Canada from a 50,000 sq ft headquarters with a demonstration and training center and an installed base of approximately 1,900 machines.

Product portfolio is organized across four families: turn-mill centers (INDEX G160 through G520 and R-series RatioLine), production turning machines (C100, C200, ABC), multi-spindle machines (MS-series spanning bar diameters of 13-52mm and TRAUB MS12-4), and sliding headstock automatics (TRAUB TNL12, TNL20). Underlying capability rests on proprietary technologies including polygon turning, gearing, high-speed whirling, INDEX CenterMaster and ClampMaster clamping/centering systems, and integrated grinding, paired with the iXpanel Industry 4.0 operating system and iX4.0 IoT platform for fleet monitoring. Supporting the machines is a digital ecosystem comprising iXworld (cloud platform), iXservices (online ticket management and remote teleservice), and iXshop (online parts portal), plus intelligent automation solutions spanning bar loaders, machine-integrated workpiece handling, and robotic integration.

Revenue is generated primarily through one-time sale of CNC machine tools complemented by recurring/aftermarket streams: spare parts (via iXshop), service and support (application engineering, process design, training, automation services, repair), and financial solutions including financing and rental options. Pricing is quote-based and not publicly disclosed. Go-to-market combines direct enterprise sales (notably through INDEX Corporation for the US/Canada), 7 international sales and service subsidiaries, and an extensive global distributor network. Customer focus is organized around three primary verticals (aerospace, medical, e-mobility) plus general manufacturing, with named users including Marathon Precision and Multi-axis Technologies. The company is ISO 9001:2015 certified and trades under no public ticker.

Name

INDEX

Legal name

INDEX-Werke GmbH & Co. KG Hahn & Tessky

Website

https://index-group.com

Company type

Private

Founded year

1914

Operating status

Operating

Headcount range

51–100 employees

Short description

INDEX is a privately held German manufacturer of CNC turning machines, automatic lathes, multi-spindle machines, and turn-mill centers sold globally under the INDEX and TRAUB brands to aerospace, medical, e-mobility, and general manufacturing customers.

Ownership category

akta.pro rank

Product category

Industrial CNC turning machinery

NAICS

Machine Tool Manufacturing (333517), Other General Purpose Machinery Manufacturing (3339), Machine Shops (332710)

SIC

Machine Tools, Metal Cutting Types (3541), General Industrial Machinery & Equipment, Nec (3569), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

akta.pro secondary industries

Industrial Controllers & Control Systems (PLCs, PACs, CNC Controllers) (IMAHAHAH), Motion & Machine Control (CNC, Robotics Controllers, Servo/Motion Controllers) (IMAGABAG)

Keywords

• CNC turning machines
• Automatic lathes
• Turn-mill centers
• Multi-spindle machines
• Sliding headstock lathes

Headquarters

HQ city

Noblesville

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. CNC Machine Sales: Sale of CNC turning machines, automatic lathes, turn-mill centers, multi-spindle machines, and sliding headstock machines. Full portfolio from compact production machines to large turn-mill centers.
2. Spare Parts: Sale of replacement parts, tool holders, spindle reductions, and clamping devices through iXshop online portal.
3. Service and Support: Application engineering, process design, operator training, tool management guidance, automation services, and machine repair through iXservices platform.
4. Financial Solutions: Financing and rental model options for machine acquisition.

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

INDEX designs, manufactures, and services CNC turning machines, automatic lathes, multi-spindle lathes, and turn-mill centers under the INDEX and TRAUB brands for industrial customers. Its portfolio spans turn-mill centers (G160, G200.2, G200.3/G220, G300/G320, G400/G420, G500/G520, R200, R300), production turning machines (C100, C200, ABC), multi-spindle machines (MS12-4 through MS52-6), and sliding headstock machines (TNL12, TNL20). It is complemented by intelligent automation solutions (bar loaders, machine-integrated solutions, automated robots, customized solutions), Industry 4.0 software (iXpanel, iX4.0, iXworld), the iXservices support platform, and the iXshop online spare-parts portal.

Product overview

INDEX is a manufacturer of CNC turning machines, automatic lathes, multi-spindle lathes, and turn-mill centers under the INDEX and TRAUB brands. The product portfolio is organized around several core machine families: Turn-mill centers (G-series including G160, G200.2, G200.3/G220, G300/G320, G400/G420, G500/G520, plus R200/R300 RatioLine), Production turning machines (C100, C200, ABC), Multi-spindle machines (MS series from MS12-4 through MS52-6), and Sliding headstock machines (TNL12, TNL20). These are complemented by intelligent automation solutions including bar loaders, machine-integrated solutions, robotic solutions, and customized automation. The digital ecosystem includes iXpanel (Industry 4.0 ready operating system), iXworld (cloud platform), iX4.0 (IoT platform with apps for equipment, status, condition, and job management), iXservices (service portal), and iXshop (parts ordering portal). The company also offers technology packages and CNC control options from Siemens, FANUC, and TRAUB.

Differentiator

Problem solved

Functional benefit

Brands

• INDEX: Primary brand for CNC turning machines, automatic lathes, and turn-mill centers
• TRAUB
• INDEX iXpanel
• iXservices
• iXworld
• iXshop

Products and services

• INDEX G160 Turn-Mill Center Compact turn-mill center with spindle clearance of 42mm/65mm, chuck diameter up to Ø130 or Ø175mm, and turning length up to 760mm, for precision combined turning and milling in a single setup.
• INDEX G200.2 Turn-Mill Center Turn-mill center with 65mm spindle clearance, 165mm chuck diameter, and 660mm turning length.
• INDEX G200.3 / INDEX G220 Turn-Mill Center Turn-mill center with 76mm spindle clearance, 230mm chuck diameter, 207Nm max torque, and 900mm turning length.
• INDEX G300 / INDEX G320 Turn-Mill Center Turn-mill center with 102mm spindle clearance, 250mm chuck diameter, and 1400mm turning length.
• INDEX G400 / INDEX G420 Turn-Mill Center Large turn-mill center with 120mm spindle clearance, 400mm chuck diameter, 1000Nm max torque, and 1600mm/2300mm turning length.
• INDEX G500 / INDEX G520 Turn-Mill Center Large turn-mill center with 120mm spindle clearance, 500mm chuck diameter, 2000Nm max torque, and 1600/2300mm turning length.
• INDEX R200 RatioLine Turn-Mill Center RatioLine turn-mill center with 65mm bar diameter, 5,000rpm speed, 24kW max power, and 190Nm max torque.
• INDEX R300 RatioLine Turn-Mill Center RatioLine turn-mill center with 102mm bar diameter, 3,500rpm max speed, 52kW max power, and 690Nm max torque.
• INDEX C100 Production Turning Machine Production turning machine with 42mm spindle clearance, 110mm chuck diameter, and 400mm turning length.
• INDEX C200 Production Turning Machine Production turning machine with 65(90)mm spindle clearance, 160mm chuck diameter, and 550mm turning length.
• INDEX ABC Production Turning Machine Production turning machine with 65mm spindle clearance, 6,000rpm max speed, 27kW max power, and 145Nm max torque.
• TRAUB MS12-4 Multi-Spindle Lathe Multi-spindle lathe with 13mm max spindle clearance, 15,000rpm max speed, and 52/130mm max Z-travel.
• INDEX MS16-6 / MS16-6 Plus Multi-Spindle Lathe Multi-spindle lathe with 16/22mm bar diameter, 10,000rpm max speed, 15kW max power, and 18Nm max torque.
• INDEX MS24-6 Multi-Spindle Machine Multi-spindle machine with 24mm bar diameter, 10,000rpm max speed, and 18Nm max torque.
• INDEX MS32-6 Multi-Spindle Machine Multi-spindle machine with 32mm bar diameter, 8,000rpm max speed, 19kW max power, and 40Nm max torque.
• INDEX MS40-6 Multi-Spindle Machine Multi-spindle machine with 40mm bar diameter, 7,000rpm max speed, and 57Nm max torque.
• INDEX MS52-6 Multi-Spindle Machine Multi-spindle machine with 52mm bar diameter, 5,000rpm max speed, 30kW max power, and 130Nm max torque.
• TRAUB TNL12 Sliding Headstock Automatic Sliding headstock automatic with 13mm spindle clearance, 12,000rpm max speed, and 130mm max Z-travel.
• TRAUB TNL20 Sliding Headstock Automatic Sliding headstock automatic with 20mm spindle clearance and 205mm max Z-travel.
• INDEX iXpanel Industry 4.0 Operating System Industry 4.0-ready operating system for direct communication with business organization and machine controllers, providing unified control and production integration for INDEX and TRAUB CNC machines.
• INDEX Intelligent Automation Solutions Bar loading magazines, machine-integrated workpiece removal solutions, automated robotic solutions, and customized automation tailored to INDEX & TRAUB CNC turning machines for single-spindle and multi-spindle turning operations.
• iXservices Service Platform Service and support platform with TicketManager for online error reporting/tracking, remote support via video transmission and teleservice, providing application engineering, operator training, tool management, automation, and repair services for INDEX and TRAUB machine owners.
• iXshop Online Parts Portal Online ordering portal for spare parts, tool holders, spindle reductions, and clamping devices, with 6,500 spare parts in stock through INDEX Corporation in the US, enabling machine owners to identify and order parts.
• iXworld / iX4.0 Digital Platform Cloud-based platform covering all aspects of the machine from specification research during purchase to monitoring, optimization, and service request submission, including the iX4.0 IoT platform with EquipmentApps, StatusApps, ConditionApps, and JobApps for fleet transparency, machine utilization, availability, and machining economics.
• Technology Packages Software Technology software packages for INDEX and TRAUB machines enabling economical production of workpieces by packaging process-optimized machining know-how into deployable software.

Quantifiable outcome

• Reduces number of operations to produce complex parts
• +2 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature10 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• AMT - The Association For Manufacturing TechnologycoreOthersINDEX is an active member of AMT which organizes the International Manufacturing Technology Show (IMTS). INDEX participates as a major exhibitor at IMTS 2026.
• NTMA - National Tooling and Machining AssociationminorOthersINDEX is a proud member of NTMA supporting the manufacturing technology industry.
• Indiana Chamber of CommerceminorOthersINDEX Corporation is a proud member of the Indiana Chamber of Commerce.
• PMPA - Precision Machined Products AssociationminorOthersINDEX is a member of PMPA supporting precision manufacturing industry.
• SiemenscoreTechnology or IntegrationINDEX machines offer Siemens CNC controllers as one of the control system options alongside FANUC and TRAUB controllers.
• FANUCcoreTechnology or IntegrationINDEX machines offer FANUC CNC controllers as one of the control system options alongside Siemens and TRAUB controllers.
• Eugen and Irmgard Hahn FoundationcoreOthers85% of company shares are held by the non-profit Eugen and Irmgard Hahn Foundation which promotes research in widespread disease, technical professional training of young people, and elderly care.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• DMG Mori: Global leader in CNC machine tools including turning centers, turn-mill platforms, and 5-axis machining centers. Directly competes with INDEX across turn-mill and multitasking categories, serving similar aerospace, automotive, and medical customers.
• Mazak: Major Japanese manufacturer of CNC turning machines, machining centers, and multi-tasking platforms (e.g., Integrex). Overlaps with INDEX's G-series turn-mill centers and serves comparable aerospace and automotive customers.
• Okuma: Japanese CNC machine tool builder producing lathes, turn-mill centers, and machining centers. A direct competitor in production turning and multitasking turning, with comparable end-market focus.
• Haas Automation: Largest US-based CNC machine tool builder offering CNC lathes, machining centers, and rotaries/palletizers. Competes with INDEX in entry-to-mid production turning and shares IMTS presence and US customer base.
• Tornos: Swiss CNC turning specialist focused on multi-spindle and Swiss-type lathes for small precision parts (medical, watchmaking, electronics). Highly comparable to INDEX's TRAUB MS-series multi-spindle machines and TNL sliding headstock platforms.
• Citizen Machinery (Citizen Cincom): Japanese builder of CNC sliding headstock lathes and multi-spindle machines. Closely comparable to INDEX's TRAUB TNL sliding headstock product line in medical and small precision parts markets.
• Nakamura-Tome: Japanese specialist in multi-tasking turn-mill centers and CNC lathes. Directly comparable to INDEX's G-series turn-mill platforms, particularly for high-mix production environments.
• EMAG: German CNC machine tool manufacturer specializing in vertical turning machines, gear cutting, and turn-mill systems. Comparable to INDEX in precision turning technology, especially for automotive and e-mobility components.

Broad incumbents

• GF Machining Solutions: Swiss-based division of Georg Fischer offering EDM, milling, laser texturing, and turn-mill solutions. Overlaps with INDEX in precision component manufacturing across aerospace and medical segments.
• Trumpf: German global leader in machine tools (laser cutting, punching, bending, turning). Provides overlapping precision manufacturing capabilities to automotive and aerospace customers, though turning is a smaller share of its portfolio than for INDEX.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCNpbVlrUczvxxE_Yt7K85_g
• Facebookfacebook.com/INDEXTRAUBUSA
• LinkedInlinkedin.com/company/index-corporation
• Instagraminstagram.com/indextraub

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 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 INDEX