What Centillion does

Centillion Ltd. (СЕНТИЛИОН ООД) is a Bulgarian private limited liability company founded in 1999, headquartered in Sofia, with 101-250 employees operating from a 7,800 sq.m. production facility that includes 800 sq.m. of ISO Class 6 clean room zones. The company provides Electronic Manufacturing Services (EMS) for advanced electronic modules, systems, and complex products serving three primary verticals: medical technology (hearing implants, active implantable medical devices, medical electronic modules), space and aerospace technology (satellite electronics, nanosatellite modules), and precision industrial engineering. Core capabilities include surface mount technology (SMT), through-hole assembly, multi-layer PCB assembly, precision pick-and-place (achieving 10µm placement accuracy), X-ray inspection (1µm resolution), wire bonding, and a comprehensive test laboratory equipped with ZEISS advanced microscopy, 3D Romer arm, and mechanical testing facilities.

The company's business model is B2B contract manufacturing with customer-specific quotations, delivered EX WORKS (INCOTERMS 2020) from Sofia. Pricing is not publicly disclosed. Distribution is direct enterprise sales targeting medical device OEMs, avionics manufacturers, and space technology companies. Centillion holds stacked regulatory certifications including ISO 13485:2016 (medical devices), ISO 9001:2015, ISO 14001:2015, ISO 14644-1 cleanroom certification, FDA 21 CFR Part 820 compliance, EU MDR compliance, and IPC standards certification for electronics assembly including space technology applications. The company has digitalized operations via SAP S/4HANA ERP and SAP Digital Manufacturing Cloud, and has invested in automation including a multifunctional robot in partnership with INFOTECH AG achieving 3x production capacity increase.

Centillion maintains anchor customer relationships with MED-EL (global hearing implant innovator, partner since 1999 with Bulgarian market representation role) and EnduroSat (satellite manufacturer, partner since founding). Additional technical relationships include Dittel Engineering GmbH (clean room consulting) and SAP (digital transformation partner). The company has received recognition including the SAP Quality Awards Grand Winner 2025 for Central and Eastern Europe and the SAP Quality Award for Rapid Time to Value. Centillion operates as a privately held company with no disclosed funding rounds, parent company, or external investor ownership, suggesting founder or management ownership structure.

Name

Centillion

Legal name

СЕНТИЛИОН ООД

Website

https://centillion.eu

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

101–250 employees

Short description

Centillion is a Bulgarian EMS provider founded in 1999 that manufactures advanced electronic modules and systems in ISO Class 6 clean rooms for medical device, aerospace, and precision industrial clients, including MED-EL and EnduroSat.

Ownership category

akta.pro rank

Headquarters

HQ city

Sofia

HQ country

Bulgaria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EMS Contract Manufacturing: Manufacturing of electronic modules, systems, and complex products for medical, avionics, and precision industrial applications. Services include assembly, testing, and packaging in controlled environments.
2. Testing and Inspection Services: X-ray inspection, AOI, mechanical testing (push-pull, shear), temperature testing, and quality analysis services.
3. Precision Assembly Services: Miniature assembly in clean room environments including wire bonding, ultrasonic cleaning, and packaging of moisture-sensitive materials.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Centillion is a contract manufacturer specializing in Electronic Manufacturing Services (EMS) — including SMT, through-hole, and complex multi-layer PCB assembly — alongside ISO Class 6 clean room production (800 sq.m.) for medical, avionics, and precision industrial applications. The company provides end-to-end services from precision assembly (10 µm accuracy) and wire bonding to comprehensive quality inspection (X-ray, AOI, ZEISS microscopy) and validation testing (mechanical, thermal, environmental). Operations are anchored in a 7,800 sq.m. Sofia facility with SAP-driven digital manufacturing and full ISO 13485, FDA, and EU MDR compliance.

Product overview

Centillion Ltd. is an innovative company specializing in the manufacture of electronic modules, systems, complex products, and services in Medical, Avionics, and Precision Industrial sectors. The company operates two core manufacturing divisions: EMS (Electronic Manufacturing Services) covering surface mount technology (SMT), through-hole assembly, and complex multi-layer PCB assembly; and Clean Room Manufacturing for contamination-sensitive applications. Centillion offers comprehensive testing and validation services including X-ray inspection, mechanical testing (push-pull/shear), temperature testing, ultrasonic cleaning, and moisture-sensitive material handling. The company serves global clients in hearing implants (cochlear implants), aerospace/satellite systems, and precision industrial equipment markets.

Differentiator

Problem solved

Functional benefit

Products and services

• EMS Manufacturing (Electronic Manufacturing Services) Full-service electronic manufacturing including surface mount technology (SMT), through-hole assembly, and complex multi-layer PCB assembly for enterprise clients in medical, aviation, and precision industrial sectors.
• Clean Room Manufacturing Production in controlled environment (ISO Class 6 / US1000) for medical electronic modules, active implantable medical devices, and space/satellite electronics requiring contamination-free assembly.
• Mechanical Push-Pull and Shear Tests Destructive mechanical testing procedures verifying solder strength of electronic components on PCBs and bonded or welded mechanical parts, performed per MIL-STD-883 and IPC-TM-650 standards for clients in regulated industries.
• X-Ray Inspection and Analysis Non-destructive quality assessment of invisible solder joints (BGA, QFN), void calculation in heat-dissipating components, and internal PCB layer condition analysis with 1 µm resolution.
• Rework of Assembled PCBs Repair and rework services for assembled printed circuit boards including component replacement and solder joint repair for enterprise clients requiring post-production corrections.
• Temperature Tests of Electronic Modules Environmental testing services for electronic modules including thermal cycling and temperature stress testing for clients in medical, avionics, and industrial sectors.
• Cleaning of Assembled PCBs Ultrasonic cleaning services for assembled printed circuit boards performed in controlled clean room environments to remove contamination prior to packaging or further processing.
• Drying and Packaging of Moisture-Sensitive Materials Specialized drying and packaging services for moisture-sensitive electronic components and materials per IPC standards, protecting components prior to shipment or further integration.

Quantifiable outcome

• Component mounting capacity of over 100,000 components per hour with inspection of 1000 solder joints in under 30 seconds
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Four partnerships are on record, tiered core.

• MED-ELcoreStrategic or Co-development Partner · 1 January 1999MED-EL is the global innovation leader in hearing loss solutions. Centillion has been their trustworthy partner and official representative in Bulgaria since 1999, manufacturing hearing implants and providing local market representation.
• EnduroSatcoreStrategic or Co-development PartnerEnduroSat is one of the fastest growing companies in Europe providing solutions for the global space market. Centillion has been partnering with them since their foundation, providing high-quality craftsmanship and reliable supplier service for satellite electronics.
• INFOTECH AGcoreTechnology or IntegrationINFOTECH AG from Switzerland collaborated with Centillion to implement advanced automation including a multifunctional robot achieving 10µm precision placement, jet dispense capabilities, and magnetic polarity measurement systems.
• SAPcoreTechnology or IntegrationSAP partnership involving implementation of SAP S/4 HANA ERP system and SAP Digital Manufacturing Cloud for Industry 4.0 digital transformation.

Scale indicators9 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Celestica Inc. EMS provider with explicit focus on aerospace/defense and healthcare end-markets, including regulated electronics assembly and reliability testing — closely aligned with Centillion's medical/aerospace mix.
• Note AB: Sweden-headquartered European EMS provider serving industrial, medical, and defense customers; the closest size-comparable and geography-comparable peer to Centillion's Bulgarian operation.
• Benchmark Electronics: EMS company specializing in complex, regulated markets including medical devices, aerospace/defense, and industrial; comparable in targeting high-mix, high-reliability electronic assemblies for OEM customers.
• Kitron ASA: Norway-headquartered European EMS with established medical, defense/aerospace, and industrial customers; directly comparable in serving Nordic and European OEM customers with regulated assemblies.
• Kimball Electronics: EMS company serving medical, automotive, and industrial end-markets with a focus on durable, regulated electronic assemblies; similar mix of long-lifecycle programs and rigorous quality systems.
• Scanfil Oyj: Finnish EMS provider with significant medical and industrial customer base, operating multiple European and Asian sites — a comparable geographic and end-market profile, though at larger scale than Centillion.
• Plexus Corp. EMS provider with healthcare/life-sciences and aerospace/defense verticals, focused on complex product introduction and regulated manufacturing — strong functional overlap with Centillion's cleanroom-based regulated EMS offering.

Broad incumbents

• Flex Ltd: One of the largest global EMS providers with extensive medical and aerospace businesses; represents the broad incumbent competitive set rather than a direct size-comparable peer.
• Sanmina Corporation: Large global EMS provider with deep medical and aerospace divisions; directly comparable end-markets and cleanroom-based microelectronics assembly capability, though at materially larger scale than Centillion.
• Jabil Inc. Global EMS giant serving healthcare, aerospace/defense, and industrial OEM customers with full NPI-to-volume capabilities; relevant as the dominant incumbent against which Centillion competes for tier-1 program wins.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
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Compliance7 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 Centillion