RS Simmons

What RS Simmons does

RS Simmons Co., LLC. is a privately held US manufacturer, founded in 2011 and headquartered in West Chester, Pennsylvania, that designs, builds, and sells semi-automatic optical inspection systems for printed circuit board assemblies (PCBAs). The company's core product family, branded SimmScope, comprises two hardware configurations — the SimmScope SS (overhead moving microscope on a motorized XY gantry) and the SimmScope SSXY (stationary microscope with a computer-controlled XY table that moves the PCBA) — both powered by a unified SimmScope Software platform that automates inspection-point positioning, side-by-side live-versus-reference image comparison, image capture and stitching, and CSV-based reporting for traceability. The systems integrate with best-in-class third-party optics, notably the TAGARNO ZAP digital microscope (30x optical zoom, up to 133x magnification) and Dino-Lite Edge Series USB microscopes, and also support any USB digital or optical microscope.

The business model is direct, quote-based hardware sales of configured inspection systems to enterprise customers in aerospace, defense, and contract manufacturing, with software bundled into the hardware purchase. Use cases marketed include high-reliability inspection, first-article inspection, foreign object detection, conformal-coating inspection, photo-documentation, and traceability. The company maintains a minimal marketing footprint (product website, spec sheets, customer testimonials, demonstration videos) and operates without disclosed institutional investors, funding rounds, or parent company; the founder, Bob Simmons, is the primary point of contact for support. Customer testimonials (Plexus Corp., Anaren Microwave, Trotter Controls, AXXE AS, and unnamed defense accounts) cite quantifiable outcomes such as reduced inspection time, discovery of defects missed under prior methods, elimination of operator eye strain, and rapid ROI.

The company sells specialty industrial capital equipment into a narrow set of regulated, high-reliability manufacturing verticals, where qualification cycles are long and reference-ability matters. The competitive position rests on the unified software platform, microscope-agnostic architecture, USA-based manufacturing, and 14 years of operational history rather than on scale, AI-based defect detection, or recurring software revenue. The absence of disclosed revenue, headcount, funding, or distribution partnerships beyond the two microscope integrations constrains the available evidence on scale, growth trajectory, and customer concentration.

Name

RS Simmons

Legal name

RS Simmons Co., LLC.

Website

https://rssimmons.com

Company type

Private

Founded year

2011

Operating status

Operating

Short description

RS Simmons Co., LLC., founded in 2011 and headquartered in West Chester, Pennsylvania, designs and manufactures semi-automatic optical inspection systems (SimmScope SS, SSXY) for PCBA quality control in aerospace, defense, and contract manufacturing, selling quote-based hardware directly to enterprise customers with bundled proprietary software.

Ownership category

akta.pro rank

Product category

PCB/PCBA Optical Inspection Equipment

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Optical Instruments & Lenses (3827), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Machine Vision & Industrial Imaging Systems (IMAHAHAE)

akta.pro secondary industries

Industrial Vision & Quality Inspection (HDAAAEAG), Industrial Quality Inspection & Metrology (Machine Vision) (IMAIAMAF)

Keywords

• PCBA optical inspection
• Automated visual inspection
• PCB inspection systems
• Machine-assisted inspection
• SMT THT inspection

Headquarters

HQ city

West Chester

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Systems Sales: Sale of SimmScope inspection systems including SS, SSXY models with integrated microscopes. One-time hardware purchase with optional accessories and microscope upgrades.
2. SimmScope Software: All systems use the same SimmScope software included with hardware purchase. Software enables visual inspection, image capture, stitching, and reporting capabilities.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

RS Simmons designs, manufactures, and sells the SimmScope family of semi-automatic Machine Assisted Optical Inspection (AOI) systems for printed circuit board (PCB) and printed circuit board assembly (PCBA) quality control. Systems combine a computer-controlled motorized XY table with a digital microscope (TAGARNO ZAP or Dino-Lite) and proprietary SimmScope software that automates inspection point positioning, live-to-reference image comparison, image capture/stitching, and Excel CSV traceability reporting.

Product overview

RS Simmons Co. manufactures semi-automatic optical inspection machines for PCB and PCBA quality control. The product portfolio consists of the SimmScope family, which includes three main product lines: the SimmScope SS (overhead moving microscope XY gantry system), the SimmScope SSXY (moving XY table with stationary microscope), and the SimmScope Software (unified platform powering all systems). The SS and SSXY models differ in their mechanical approach—SS moves the microscope over a stationary PCBA while SSXY moves the PCBA under a fixed microscope. Both systems share the same SimmScope Software for visual inspection, image capture, image stitching, and CSV reporting. The company also recommends integration with TAGARNO ZAP and Dino-Lite Edge Series USB microscopes as compatible microscope options. Systems have been shipping since 2011 and are designed and built in the USA.

Differentiator

Problem solved

Functional benefit

Brands

• SimmScope: Family of PCBA visual inspection systems including SimmScope SS (overhead moving microscope), SimmScope SSXY (XY table with stationary microscope), and SimmScope SS-T variants equipped with TAGARNO ZAP digital microscope.

Products and services

• SimmScope SSXY Computer-controlled XY table PCBA inspection system with a stationary digital microscope; moves the PCBA to programmed inspection points and is configurable with the TAGARNO ZAP microscope or any compatible USB digital/optical microscope. For aerospace, defense, and manufacturing quality teams performing high-reliability and full-board inspection.
• SimmScope SS (SimmScope SOI) Compact tabletop PCBA inspection system with an overhead moving USB microscope on a motorized XY gantry; the microscope is automatically moved to programmed inspection points. Compatible with Dino-Lite Edge Series (5MP, EDOF) and TAGARNO ZAP digital microscopes. For aerospace, defense, and manufacturing quality teams needing flexible semi-automated visual inspection.
• SimmScope Software Proprietary PCBA visual inspection software included with all SimmScope systems. Automatically positions the PCBA or microscope to inspection points, displays live image beside reference image for operator pass/fail decisioning, captures and stitches images, and generates MS Excel-compatible CSV reports with inspection imagery for traceability and offline review/rework.

Quantifiable outcome

• Inspection time reduced from day and a half to 8 hours for 74-piece order with ~50 components per board
• +3 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• TAGARNOcoreTechnology or IntegrationTAGARNO provides the ZAP High Definition Digital Microscope and ring lamp integrated into SimmScope -T systems. The ZAP offers true 30x optical zoom with interchangeable lens for up to 133x magnification. This is a key technology partnership enabling the high-quality imaging capabilities of the SimmScope inspection systems.
• Dino-LitecoreTechnology or IntegrationDino-Lite provides the Edge Series 5MP digital microscopes with extended depth of field (EDOF) feature and integrated lighting control for SimmScope systems. Recommended EDGE series microscope option for both SS and SSXY systems.

Scale indicators1 record

Recent moves6 records

Expansion highlights3 records

Emerging players

• Vision Engineering: Vision Engineering makes stereo and digital inspection microscopes, often used for manual and semi-automated electronics inspection. It overlaps with RS Simmons on the inspection optics side and serves overlapping electronics manufacturing customers, though it is a microscope vendor rather than a full XY-stage inspection system provider.

Direct peers

• Nordson Test & Inspection (CyberOptics): Nordson's Test & Inspection division, built on the CyberOptics AOI business, provides optical inspection systems for SMT and PCBA. It competes directly for PCBA inspection capex and serves overlapping electronics manufacturing customers.
• ViTrox Technologies: ViTrox builds machine vision inspection systems for the SMT and semiconductor packaging industries, including AOI for PCBAs. It competes for the same inspection workflow dollars and addresses high-reliability as well as high-volume manufacturing.
• Test Research, Inc. (TRI): TRI offers AOI, X-ray inspection, and ICT solutions for PCBA and semiconductor back-end testing. It overlaps with RS Simmons in PCBA visual inspection for EMS and OEM customers and competes for inspection capex budgets in the same electronics manufacturing accounts.
• Viscom AG: Viscom manufactures AOI and X-ray inspection systems for electronics manufacturing, with a strong presence in automotive and aerospace electronics. It competes for high-reliability PCBA inspection opportunities similar to RS Simmons' aerospace and defense focus.
• Saki Corporation: Saki manufactures automated and 3D optical inspection (AOI) systems for SMT and PCBA production lines. It competes for PCBA inspection budgets, particularly with electronics manufacturing services and aerospace/defense suppliers, the same buyers RS Simmons targets.
• MEK Marantz Electronics: MEK Marantz Electronics manufactures AOI and conformal coating inspection systems for SMT and THT PCBA production. It targets similar use cases — including post-assembly inspection — and competes for budget allocated to high-reliability PCBA quality control.
• Mirtec: Mirtec produces 2D and 3D AOI systems for SMT lines, including high-end inspection for automotive and aerospace electronics. It overlaps with RS Simmons' high-reliability PCBA inspection value proposition and competes for similar buyer personas.

Broad incumbents

• Omron Corporation: Omron offers a broad portfolio of industrial automation including AOI and solder inspection for PCBAs. As a large incumbent, it competes with RS Simmons in PCBA quality inspection but as one of many offerings within a much wider factory-automation stack.
• Koh Young Technology: Koh Young is a global leader in 3D SPI and AOI systems for SMT and PCBA, serving high-volume electronics manufacturers. It competes in the same PCBA inspection category as RS Simmons but addresses higher-volume, fully automated lines rather than RS Simmons' semi-automatic niche.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 RS Simmons