What Spartronics does

Spartronics LLC is a privately-held electronics contract manufacturing services (EMS) provider serving OEMs in highly-regulated, mission-critical end markets. The company specializes in printed circuit board assembly (PCBA), subsystem integration, and full-box builds, with deep expertise in FDA-registered Class II and III medical device manufacturing, AS9100-certified defense electronics, and high-reliability space and aerospace systems. Its service portfolio spans the full product lifecycle — value-added engineering (DFM, NPI support, sustaining engineering), manufacturing readiness, integrated supply chain management, logistics, quality systems, and aftermarket solutions (repairs, refurbishment, obsolescence management). The firm operates eight US facilities (Fairport NY, Watertown SD, Williamsport PA, Brooksville FL, Logan UT, Plaistow NH, Strongsville OH) and one offshore facility in Ho Chi Minh City, Vietnam, with a new 270,000 sq ft LEED Gold-certified replacement facility in Binh Duong City representing a fourfold capacity expansion. The firm employs 1,001-5,000 people and reported over $400M in revenue as of January 2021.

The business model is direct enterprise sales to OEMs across six primary verticals: commercial aerospace, defense, medical devices, life sciences, instrumentation & control, and space. Revenue is generated through manufacturing fees tied to product complexity, volume, and program scope, complemented by engineering and aftermarket services. Pricing is quote-based, reflecting regulatory requirements, certification scope, and qualification complexity, and the company employs a field-sales/account-management motion with executive-level engagement (CEO, VP Supply Chain, VP Business Development) on key programs. Notable customers include RTX/Raytheon (Premier Award recipient in both 2021 and 2024), Neuronetics (NeuroStar TMS therapy device), and Fortem Technologies (counter-UAS drones), with on-time deliverability reported at 97.4% across all sites.

Spartronics was acquired by One Equity Partners in July 2020 and has since executed an aggressive platform-building strategy, acquiring Primus Technologies (December 2020) and Inovar (September 2021) to expand US footprint and engineering capacity. The company maintains an extensive certification portfolio — ISO 13485:2016, AS9100, ISO 9001:2015, NADCAP, MDSAP, FDA 21 CFR Part 820 / Part 11, IEC 60601-1, ISO 14971, ANSI/ESD S20.20, and the IPC standard family — which collectively represent a significant barrier to entry in regulated manufacturing and constitute the company's primary competitive moat. Leadership under CEO Jeffrey T. Schlarbaum (25+ years EMS experience) and CFO Michael R. Schlehr (since January 2023) is steering continued investment in dual onshore/offshore capacity and Defense Industrial Base qualification.

Name

Spartronics

Legal name

Spartronics LLC

Website

https://spartronics.com

Company type

Private

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Spartronics is a privately-held electronics contract manufacturer serving aerospace, defense, medical device, life sciences, instrumentation, and space OEMs with PCBAs, subsystem integration, and full-box builds across eight US facilities and a Vietnam site.

Ownership category

akta.pro rank

Product category

Electronics Contract Manufacturing (EMS)

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electromedical & Electrotherapeutic Apparatus (3845), Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Industrial Electronics Manufacturing Services (EMS) (IMAGAGAA)

Keywords

• Electronics contract manufacturing
• Printed circuit board assembly
• Aerospace defense manufacturing
• Medical device manufacturing
• Aftermarket electronics services

Headquarters

HQ city

Hai Duong

HQ country

Vietnam

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Contract Manufacturing Services: Electronic contract manufacturing services for PCBA, subsystem integration, and full-box builds. Revenue generated through manufacturing fees based on product complexity, volume, and production runs.
2. Value-Added Engineering: Engineering services from early-stage design support through manufacturing testing and sustaining engineering. Includes design for excellence, NPI support, and manufacturing readiness.
3. Aftermarket Solutions: Post-production services including repairs, maintenance, refurbishment, spare parts, and obsolescence management to extend product lifecycles.
4. Supply Chain Management: Supply chain services including procurement, logistics management, and global sourcing to support manufacturing operations.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Spartronics is a contract electronics manufacturer that builds, tests, and supports complex electronic and electromechanical assemblies for OEM customers in aerospace, defense, medical, life sciences, instrumentation, and space markets. Offerings span printed circuit board assembly, full box build integration, cable and harness assembly, value-added engineering, supply chain management, and aftermarket repair and refurbishment.

Product overview

Spartronics is a worldwide electronics contract manufacturing services provider offering a comprehensive suite of services including Contract Manufacturing (PCBAs, subsystem integration, full-box builds), Value-Added Engineering, Manufacturing Readiness, Supply Chain management, Quality, Logistics, and Aftermarket Solutions. The company operates across six key vertical markets: Commercial Aerospace, Defense, Medical Devices, Life Sciences, Instrumentation & Control, and Space. Spartronics serves as both a product manufacturer and service provider, producing complex electronic and electromechanical devices for OEMs with mission-critical and life-sustaining applications. The company has expanded through acquisitions (Primus Technologies, Inovar) and operates facilities in the US and Vietnam.

Differentiator

Problem solved

Functional benefit

Products and services

• Contract Manufacturing End-to-end contract electronics manufacturing including printed circuit board assembly (PCBA), complex box builds, cable and harness assembly, and full system integration for OEM customers in aerospace, defense, medical, life sciences, instrumentation, and space markets.
• Value-Added Engineering Engineering-led new product introduction (NPI) and design-for-manufacturing (DFM) services supporting OEM customers from prototype through production release.
• Manufacturing Readiness Process and production readiness services that prepare OEM programs for scalable, repeatable manufacturing including tooling, process validation, and ramp support.
• Supply Chain Integrated supply chain management including materials planning, sourcing, supplier management, and component lifecycle support for OEM customers.
• Quality Quality management and compliance services aligned to AS9100D, ISO 13485, and ITAR requirements supporting regulated-industry OEM programs.
• Logistics Outbound logistics, finished goods handling, and distribution support that ships completed assemblies to OEM customers worldwide.
• Aftermarket Solutions Aftermarket repair, refurbishment, and sustainment services supporting OEM fielded equipment over long program lifecycles.

Quantifiable outcome

• 97.4% on-time deliverability rate across all locations during challenging conditions
• +1 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles1 record

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 and key.

• Inovar, Inc.coreOthers · 2 September 2021OEP's Spartronics completed the acquisition of Inovar, a provider of engineering, manufacturing, and aftermarket services. This acquisition expanded Spartronics' electronics manufacturing capabilities to service OEM customers.
• Primus Technologies Corp.coreOthers · 31 December 2020Spartronics acquired Primus Technologies as of December 31, 2020. Primus, headquartered in Williamsport PA with two US facilities, provides engineering, manufacturing and testing services for circuit card assemblies and box builds in aerospace, defense, medical and industrial markets. This acquisition expanded Spartronics' US footprint and added capabilities.
• Fortem TechnologieskeyStrategic or Co-development PartnerPartnership for counter-UAS drone manufacturing. Fortem Technologies partners with Spartronics to scale counter-UAS manufacturing with secure U.S.-based production, defense-grade quality, and rapid NPI support.
• Neuronetics, Inc.keyStrategic or Co-development PartnerManufacturing partnership for NeuroStar TMS therapy device. Neuronetics partnered with Spartronics design and manufacturing teams for comprehensive FDA-compliant services including design, engineering and manufacturing to prepare NeuroStar for commercialization.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Jabil: One of the largest global EMS providers with broad capabilities across multiple end markets including aerospace, defense, medical, and industrial. Directly comparable contract manufacturing services but at significantly larger scale than Spartronics.
• Flex (Flextronics): Global EMS leader offering design, manufacturing, and supply chain services across multiple industries including healthcare, aerospace, and industrial. Competes with Spartronics for regulated-vertical contract manufacturing wins.
• Sanmina: Global integrated manufacturing solutions provider serving aerospace, defense, medical, and industrial markets. Overlaps directly with Spartronics in PCBA, subsystem integration, and full-box builds for regulated verticals.
• Celestica: Toronto-based global EMS provider serving aerospace, defense, healthcare, and industrial end markets. Comparable business model with similar focus on complex, high-reliability electronics manufacturing.

Direct peers

• Benchmark Electronics: Mid-market EMS provider specializing in complex, high-reliability electronics for aerospace, defense, medical, and industrial customers. Highly comparable to Spartronics in size, vertical focus, and service offering.
• Plexus Corp. Mid-market EMS company focused on regulated industries including medical, aerospace/defense, and industrial. Closely comparable in scale, vertical mix, and regulated-manufacturing positioning.
• Kimball Electronics: Contract electronics manufacturing services provider serving medical, automotive, industrial, and public safety markets. Comparable mid-market scale and end-market diversification.
• Creation Technologies: Privately-held mid-market EMS provider focused on complex, regulated electronics for aerospace, defense, medical, and industrial customers. Similar scale and end-market concentration to Spartronics.
• Key Tronic: Mid-tier EMS provider offering PCBA, box build, and engineering services to medical, aerospace, and industrial OEMs. Comparable mid-market position with overlapping customer verticals.

Regional players

• TTM Technologies: US-focused PCB and EMS provider serving aerospace, defense, medical, and industrial customers. Adjacent business model with strong overlap in regulated electronics manufacturing verticals.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/spartronics
• Facebookfacebook.com/SpartronicsECM
• LinkedInlinkedin.com/company/spartronics

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Spartronics