INDEX-6

What INDEX-6 does

INDEX-6 Ltd. is a Plovdiv, Bulgaria-based designer and manufacturer of Ultra Clean filling and packaging machinery for liquid food and non-food products, founded in 1990 as a small team of automation and robotics engineers and now employing 101-250 people. Its product portfolio centers on weight, volumetric, and flowmetric filling systems organized around proprietary synchronized multibloc platforms — B_Ifill (combined blow-molding/filling/closing), AssetClean (Ultra Clean weight filling for milk, dairy, and other microbiologically sensitive products), AseptPro (aseptic filling exceeding VDMA IV), and Pragmatic (edible oils, sauces, and industrial fluids) — alongside the IND-Machines family of fillers (IND-Dose), cappers (IND-Close), labelers (IND-Lab), packers (IND-Pack), conveyors (IND-Trans), and rinsers (IND-Wash). Differentiated technology includes the patented externally-controlled oil filling valve (±1 gram dosing), neck-handling non-contact bottle transfer, load-cell dosing at 60-400 bpm across 80 ml to 5-liter formats, and the IND-PPS (Purity Protection System) integrating CIP/SIP washing, HEPA-filtered sterile air, and bottle sterilization using hydrogen peroxide/peracetic acid or ozone.

INDEX-6 generates revenue primarily through direct hardware sales of fully engineered turnkey production lines, supplemented by design and installation services and long-tail after-sales support with spare parts supply retained for a minimum of 10 years per machine. Go-to-market is sales-led and multi-channel: enterprise-direct via website inquiry, major international trade exhibitions (Interpack, Anuga FoodTec, Gulfood Manufacturing, Drinktec, FOTEG Istanbul), and a network of regional representatives and agencies across European and Asian countries. Pricing is custom-quoted per project based on product type, container volume, capacity, and hygiene tier; no public price list. Customer base is enterprise-grade across dairy, beverages, edible oils, sauces/condiments, water, wine/spirits, cosmetics, and industrial fluids, with named installations for PepsiCo, Coca-Cola Group (Bankia), Belvedere Group (Katarzyna Estate), and numerous regional producers in 36+ countries across four continents. The company also runs an internal R&D and manufacturing program in Plovdiv — including a 700 kW rooftop photovoltaic installation powering over 50% of production — and holds ISO 9001, ISO 14001, ISO 50001:2018, and EHEDG credentials.

Name

INDEX-6

Legal name

Index-6 Ltd.

Website

https://index-6.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

101–250 employees

Short description

INDEX-6 designs and manufactures automated Ultra Clean filling and packaging machinery for liquid food and non-food products, serving enterprise dairy, beverage, edible oil, water, sauce, wine, cosmetics, and industrial fluid producers across more than 36 countries.

Ownership category

akta.pro rank

Product category

Industrial Filling and Packaging Machinery

NAICS

Food Product Machinery Manufacturing (333241)

akta.pro primary industry

Filling & Dosing Equipment (Liquid, Powder, Aseptic) (IMALAOAB)

akta.pro secondary industries

Filling & Dosing Machines (Liquid/Powder/Solid) (IMAHAOAF), Capping, Sealing & Closing Machines (IMAHAOAG), Form-Fill-Seal (Vertical & Horizontal) Machines (IMALAOAA), Hot-Fill Bottling Lines (Juice/Tea/Isotonics) (AFAFAJAE), Glass Bottle Filling & Capping Operations (AFAFAJAA)

Keywords

• Industrial filling machinery
• Packaging equipment
• Ultra Clean filling lines
• Bottling machinery
• Turnkey packaging solutions

Headquarters

HQ city

Plovdiv

HQ country

Bulgaria

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Filling and Packaging Machinery Sales: INDEX-6 generates primary revenue from manufacturing and selling Ultra Clean filling and packaging machines. Products include weight filling systems, volumetric fillers, flowmetric fillers, synchrobloc systems (B_Ifill, AssetClean, Pragmatic), capping machines, labeling machines, and complete turnkey production lines.
2. Turnkey Solutions - Design and Engineering: Complete engineering solutions including design, engineering, manufacturing, and installation of fully automatic Ultra Clean filling and packaging machines and production lines.
3. After-Sales Service and Spare Parts: Service and after-sales support including spare parts supply. The company maintains detailed files of all supplied equipment for minimum 10 years after manufacturing year and offers maintenance, technical assistance, and wearing spare parts.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

INDEX-6 designs, engineers, manufactures, and installs fully automatic Ultra Clean filling and packaging machinery and complete turnkey production lines for liquid food and nonfood products. Its equipment serves dairy, juices, sauces, edible oils, water, wine, cosmetics, and industrial fluid manufacturers across four continents, with patented synchroblock (B_Ifill), weight filling (AssetClean, Pragmatic), and aseptic filling (AseptPro) systems backed by the Purity Protection System (PPS) for sterile-environment filling.

Product overview

INDEX-6 is a Bulgarian manufacturer of Ultra Clean filling and packaging lines for food and nonfood liquid products. The product portfolio is organized around several core machine series and integrated systems: the B_Ifill synchronized system for blow-filling-capping in one compact unit; AssetClean and Pragmatic multibloc series for weight filling in ultra-clean environments; AseptPro for aseptic filling; and the extensive IND-machines family including IND-Dose filling machines, IND-Close capping machines, IND-Lab labeling machines, IND-Pack packing machines, and IND-Trans conveyor systems. These are complemented by the PPS (Purity Protection System) for integrated CIP/SIP cleaning and sterile air supply. The company provides turnkey solutions combining design, manufacturing, and installation of complete automatic production lines for dairy products, juices, oils, sauces, water, wine, cosmetics, and industrial fluids.

Differentiator

Problem solved

Functional benefit

Brands

• AssetClean™: Ultra Clean filling machines for milk, cold teas, natural juices and other microbiologically sensitive products.
• Pragmatic®
• B_Ifill™
• AseptPro™
• IND-Machines

Products and services

• B_Ifill Synchroblock A synchronized multibloc system that combines blow molding, filling, and closing of PET and PE bottles with plastic caps in a single compact layout with reduced format parts. Designed for water, milk, yogurt, juice, oil, ketchup, and similar liquid food and nonfood products with weight, flowmetric, or level filling.
• AssetClean Weight Filling Multibloc System Ultra Clean weight filling multibloc systems for milk, cold teas, natural juices, and other microbiologically sensitive products with high hygiene levels, including bottle sterilization, cap sterilization, sterile water rinsing, UVC treatment, and sterile-air overpressure clean zones.
• AseptPro Aseptic Filling System Aseptic synchronized contactless weight-filling systems designed for products requiring ultra-high cleanliness standards exceeding VDMA IV requirements to support extended product shelf life.
• Pragmatic Series Weight Filling Multibloc Hygienic weight filling multibloc systems for edible oils, ketchup, sauces, motor oils, detergents, and similar viscous products, designed for precise dosing accuracy.
• IND-Dose Filling Machines Complete range of weight, volumetric, and flowmetric filling machines spanning the IND-Dose 41, 43, 44, 48, and 49 series for liquids of various viscosities and capacities.
• IND-Close Capping Machines Rotary and linear capping machines for screw caps, twist-off caps, and press caps across the IND-Close 11, 12, 14, and 22 series.
• IND-Lab Labeling Machines Rotary and linear labeling machines applying self-adhesive, hot-melt, and thermo-shrinkable labels across the IND-Lab 32, 36, and 38 series.
• IND-Pack Packing Machines Automatic packing machines for group packaging in shrinkable foil (IND-Pack 29) and cardboard boxes (IND-Pack 24).
• IND-Trans Conveyor Systems Single-lane and multi-lane conveyors for transporting and buffering bottles, including the IND-Trans 71, 72, 73 series and the IND-Trans Aero air conveyor.
• IND-Way Bottle Unscramblers Bottle unscramblers for PET bottles (IND-Way 9000) and parallel multi-lane conveyors for glass bottles to feed filling lines with oriented bottles.
• IND-Wash Rinsing Machines Rotary rinsers for bottle sterilization and cleaning including the IND-Wash 55 RR with 30 rinsing valves for high-throughput Ultra Clean environments.
• Turnkey Filling and Packaging Lines Complete engineering project solutions covering design, engineering, manufacturing, installation, and commissioning of fully automatic Ultra Clean filling and packaging lines for liquid food and nonfood products, delivered as a single-supplier turnkey contract.

Quantifiable outcome

• Dosing accuracy of ±1 gram in filling range of 0.2 to 3.0 liters
• +4 more outcomes

Named customers27 records

Segments8 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Tetra PakminorStrategic or Co-development PartnerTetra Pak was chosen as the processing unit supplier for a milk processing plant project in Oman where INDEX-6 supplied filling units. This represents a project-based collaboration rather than a formal partnership agreement.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sidel: Part of Tetra Laval, Sidel designs complete PET bottling lines including blowing, filling and capping for beverages, water and dairy. Closely analogous to INDEX-6's B_Ifill synchroblock offering and Ultra Clean approach.
• Serac Group: French manufacturer specializing in filling machines for liquid and viscous products including dairy, beverages, oils, cosmetics and chemicals. Highly comparable mid-cap competitor with similar customer verticals and weight/flowmetric filling technology.
• Krones AG: German global leader in beverage and liquid packaging machinery. Directly comparable in filling, capping, labeling and complete line solutions for beverages, dairy and food, and the dominant benchmark INDEX-6 competes against outside of Bulgaria.
• GEA Group: German manufacturer of aseptic filling and processing equipment, particularly strong in dairy. Direct competitor in Ultra Clean/aseptic liquid filling where GEA has a deep installed base and overlapping product portfolio.
• Cozzoli Machine Company: US-based specialty filling equipment manufacturer for liquid, viscous and powder products across food, beverage, pharmaceutical and cosmetics. Comparable mid-sized niche filler offering turnkey custom-engineered filling lines.

Broad incumbents

• Tetra Pak: Global incumbent in aseptic carton and liquid food processing/packaging. Even project-cooperating with INDEX-6 on combined processing+filling solutions, Tetra Pak sets the standard for aseptic dairy and is INDEX-6's primary reference point in AseptPro category.
• Coesia Group: Italian packaging machinery group (parent of ACMA, GDM, etc.) supplying complete liquid filling and packaging lines. Comparable to INDEX-6 as a larger, multi-brand platform serving overlapping food, beverage and personal care end markets.
• Alfa Laval: Swedish industrial process equipment major with a fluid handling and hygienic processing portfolio spanning dairy, beverage and industrial fluid fillers. Comparable at the broad equipment level serving similar end customers and regulated hygiene environments.
• ProMach: US-based diversified packaging machinery conglomerate covering filling, capping, labeling and bottling across food, beverage and personal care. Comparable as a broad portfolio alternative for customers evaluating integrated packaging lines.

Regional players

• Aksakal Makina (AKSA): Turkish manufacturer of filling and packaging machinery for liquid food and personal care products. Closely comparable regional player addressing similar mid-market dairy, juice and edible oil customers with overlapping technology scope and price positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/index6Bulgaria
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/index6

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

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-6