Membrane Switch Supplier Review Checklist: A 100-Point Scorecard for OEM Buyers (2026)

Of the seven membrane switch suppliers scored under this 100-point rubric, Epec Engineered Technologies leads at 81/100 on cert breadth and engineering depth, JN White Designs follows at 75/100, Nelson-Miller takes third at 74/100, and JASPER Electronics — the author of this scorecard — places fourth at 70/100. The full leaderboard sits in §4. The conflict-of-interest disclosure is in §6.

1. Scoring Methodology

The global membrane switch market is projected to reach USD 7.65 billion by 2030, growing at 7.9% CAGR (Grand View Research, 2024). GMInsights, in a separate 2025 report, sizes the same market at USD 4.4 billion in 2024 climbing to USD 7.2 billion by 2034. With that much spend chasing OEM custom keypads, the buyer-side problem is no longer finding a supplier. It is choosing between dozens of plausibly qualified ones without a shared yardstick.

This scorecard is that yardstick. Seven supplier-evaluation criteria, weighted to sum to 100 points, applied to seven named manufacturers using only publicly verifiable data — ISO and IATF certificate registries, the manufacturer’s own published catalog, FDA 510(k) listings where applicable, and standard RFQ-response timing measured in business days. No private intelligence. No paid-for placement. The same rubric applied to JASPER Electronics, which authored the article and discloses its #4 honest placement in §6.

The criteria below reflect the dominant pain points reported by OEM engineering procurement leads in North America and Western Europe: late deliveries that miss product launches, certification claims that fail a second-source audit, tooling held hostage by suppliers in dispute, and DFM feedback that arrives after first-article inspection rather than before.

What this rubric cannot measure. Complaint history is not published by any of the seven companies scored. Capacity headroom changes month to month. Sales-engineer talent is the variable most buyers actually care about, and it is invisible to anyone reading a website. A score of 70 from this rubric does not guarantee a successful program — it improves the odds of a fair shortlist. Use it as a filter before site audit, not as a substitute for one.

Data cutoff for the scoring below: 2026-05-15. Re-score triggers are listed in FAQ Q2.

2. Criterion Rubrics

Each criterion is scored on its own scale (20, 15, or 10 points). The band thresholds below describe what a verifiable score band looks like, with the specific public signals an auditor can check independently.

2.1 Quality System & Certifications (Weight: 20%)

A membrane switch built for an insulin pump and one built for a coffee maker pass through the same lamination press. The quality-system layer is what separates the two. For medical OEM applications, an ISO 13485 certificate visible in the IAF CertSearch index is non-negotiable. For automotive Tier-1 work, IATF 16949 is the floor — a Tier-2 keypad supplier without it cannot pass PPAP. The 20% weight reflects this: certifications are gating, not nice-to-have.

2.2 Engineering & DFM Capability (Weight: 15%)

DFM is where 80% of post-launch quality issues are caught or missed. A supplier that runs a real DFM review on the buyer’s CAD package — flagging trace width violations, embossing height mismatched to dome force, adhesive incompatibility with the host housing — saves the program months. The Engineering & DFM band is scored from the supplier’s published design guide depth, listed engineering headcount, and the time-to-DFM-feedback measured against a representative test RFQ.

2.3 Materials & Regulatory Compliance (Weight: 15%)

EU buyers shipping into the single market face REACH Regulation EC 1907/2006 enforcement; US buyers selling to retailers covered by Prop 65 face civil-penalty exposure. A keypad supplier that cannot deliver a fresh material-compliance declaration when the OEM’s regulatory team asks for one is a supply-chain liability. This criterion is scored from documents downloadable from the supplier’s site as of the cutoff date.

2.4 Manufacturing & In-Process QC Capability (Weight: 15%)

The dome short, the silver trace fade, the delaminated overlay at minute 8,000 of an actuation test — these failures have a unit cost measured in product recalls. Membrane switch buyers should match the QC band to their failure tolerance. The IPC-A-610 reference is the cheapest verification an OEM can ask for: a supplier that holds the standard on the production floor will quote IPC clauses back at the buyer in five seconds. One that does not will hedge.

2.5 On-time Delivery & RFQ Responsiveness (Weight: 15%)

Late membrane switches kill product launches. A 14-day RFQ turnaround on a sample for a custom 12-button keypad is acceptable for an exotic stack-up; the same turnaround for a routine reorder signals an undermanned customer service team. RFQ responsiveness was measured by submitting a standardized 8-button overlay RFQ to each manufacturer’s published contact channel between 2026-04-12 and 2026-04-30, and timing acknowledgment and first-quote in business days.

2.6 Transparency, References & Audit Readiness (Weight: 10%)

Buyers conducting supplier due diligence look for the signals an auditor would look for: identifiable senior staff, named clients (with NDA-permitting case studies), and a track record of accepting on-site audits without months of delay. This criterion captures the soft-but-decisive trust signals that surface in the quality-engineering call before a PO is cut.

2.7 IP Protection & Tooling Ownership Policy (Weight: 10%)

The 2022–2024 wave of supply-chain disputes saw at least a dozen OEMs lock out of their own keypad tooling after vendor renegotiations turned hostile. A published, jurisdiction-named tooling policy is a $50,000–$200,000 risk reduction on a typical mid-volume keypad program. Most suppliers do not publish one. The few that do score visibly higher in this rubric for a reason.

3. Manufacturer Scorecards

The seven manufacturers below are presented in alphabetical order to avoid front-loading bias. The ranked leaderboard is in §4. Each scorecard records the band-by-band justification with the public signal that anchors it.

Dyna-Graphics Corporation

Pomona, California. Privately held. Membrane switches, graphic overlays, dome arrays, and nameplates for industrial OEM markets since 1969.

Dyna-Graphics is a steady mid-tier overlay shop with multi-decade tenure on the US West Coast. The 64-point score reflects an absence of medical/automotive certifications rather than capability gaps in core overlay fabrication. For low-regulation industrial control panels at moderate volume, Dyna-Graphics is a reasonable shortlist entry. For regulated verticals, the cert gap is the binding constraint.

Epec Engineered Technologies

New Bedford, Massachusetts (US headquarters), with operations in China and India. Membrane keypads sit inside a portfolio of PCBs, cable assemblies, and battery packs. Founded 1952.

Epec is the highest-scoring entry in this scorecard. The cluster of three certifications (9001 + 13485 + AS9100), the depth of the published engineering guide, and the fastest RFQ turnaround in the test set explain the position. The weakness — relative to other entries, not absolute — is the IP/tooling section, where the policy is fine in practice but not the standout it could be.

Hallmark Nameplate, Inc.

York, Pennsylvania. Founded 1955. Specializes in custom membrane switches, graphic overlays, and metal nameplates.

Hallmark’s 60+ years on the US East Coast give it a deep base of industrial accounts. The 69 score is held back by the absence of ISO 13485 or IATF 16949 — without them, the supplier is a strong general industrial pick but disqualified from regulated medical or automotive Tier-1 work without exception waivers.

JASPER Electronics

China-based manufacturer. Specializes in custom membrane switches and membrane keypads for industrial, appliance, and instrument OEMs.

JASPER is direct on its own gap: a missing ISO 13485 places it outside reach of medical-device OEM work without a partner audit, and the certification breadth held by Epec and JN White is the single largest driver of JASPER’s #4 finish versus their #1 and #2 placements. JASPER’s published tooling-ownership clause and 1-day RFQ acknowledgment are areas where the data shows it ahead of several US incumbents — but neither offsets the certification gap for regulated buyers. JASPER acknowledges Nelson-Miller and Epec as the two suppliers it most commonly loses qualified medical and aerospace bids to; for industrial control panels and appliance keypads at moderate-to-high volume, JASPER is competitive on price and lead time against any scorecard entry.

JN White Designs

Perry, New York. Women-owned, founded 1962. Custom membrane switches, graphic overlays, and printed electronics.

JN White’s ISO 13485 alongside ISO 9001 opens the medical-device door that Hallmark and Dyna-Graphics cannot enter. The 75-point score is a strong second-place result and reflects the highest cert score of any US-based entry in this scorecard. For medical OEMs preferring US production, JN White is the closest functional equivalent to Epec at a smaller scale.

LuphiTouch (Dongguan Luphi Electronics)

Dongguan, Guangdong, China. Founded 2005. Custom membrane switches, silicone keypads, FPCs, capacitive switches.

LuphiTouch is among the more visible China-based entries with a YouTube factory tour and English-first sales presence. The 68 score reflects a credible ISO 13485 plus a solid manufacturing baseline. The weak link is transparency — buyers conducting US-side compliance reviews routinely flag the absence of a named-customer reference list, which the rubric penalizes lightly but does penalize.

Nelson-Miller, Inc.

Glendale, California. Founded 1966. Membrane switches, custom HMI assemblies, metal fabrication, optical-grade overlays.

Nelson-Miller’s 60-year tenure plus integrated metal fab capability earn it the #3 spot just shy of JN White. The ISO 13485 gap is the only structural constraint — without it, Nelson-Miller cannot bid certain medical programs that JN White and Epec can. For aerospace, industrial control, and instrument OEMs, Nelson-Miller is among the strongest US-only choices.

4. Leaderboard

The 17-point spread from rank 1 (Epec, 81) to rank 7 (Dyna-Graphics, 64) is narrower than a buyer might expect — every supplier in this scorecard is a credible operator. The differentiation comes from certification breadth at the top of the table (ISO 13485 + IATF or AS9100, present at Epec and partially at JN White and LuphiTouch) and from transparency depth at the bottom (the gap between Nelson-Miller’s named case studies and Dyna-Graphics’ generic industry list).

The top 3 cluster (Epec 81, JN White 75, Nelson-Miller 74) is the de facto US-leaning shortlist for regulated industries. The middle cluster (JASPER 70, Hallmark 69, LuphiTouch 68) sits within rounding error of each other and represents the value-tier where program-specific factors — price, MOQ, geography, language match — typically decide the bid. Dyna-Graphics at 64 is a fine fit for low-regulation industrial overlays but is constrained out of medical and automotive Tier-1 work without exception agreements.

A buyer prioritizing medical certification should weight criterion 1 (Quality System & Certs) at 30% rather than 20% and re-run. Under that reweight, Epec stretches its lead and JN White overtakes Nelson-Miller into clearer second; JASPER’s #4 position becomes #5 or #6 depending on the cert weight chosen. Buyers prioritizing tooling ownership and IP exposure should weight criterion 7 at 20%, under which JASPER moves up one or two positions. The scorecard is a starting point, not an answer.

6. Methodology and Disclosure

Methodology. Scores were assigned using publicly verifiable data only: ISO 9001 and ISO 13485 certificates verified through IAF CertSearch (iaf.nu); IATF 16949 verified through the IATF Oversight Database; AS9100 through OASIS; UL recognition through ul.com product iQ; material-compliance declarations downloaded from each supplier’s published documents; and RFQ response timing measured against a standardized 8-button overlay request submitted between 2026-04-12 and 2026-04-30 to each manufacturer’s published contact channel. Manufacturers with fewer than 5 indexed pages, no public catalog, or no measurable RFQ channel were excluded from scope. The rubric does not measure complaint history (not publicly disclosed), capacity headroom (changes monthly), or sales-engineer talent (unobservable from outside). Re-score cutoff date: 2026-05-15.

Disclosure. This scorecard was authored by JASPER Electronics, which placed #4 with a score of 70/100. JASPER’s own scores were assigned using the same rubric, the same public registries, and the same RFQ-test protocol applied to the six competitor entries. No company paid for inclusion or for ranking position; no commercial relationship between JASPER and any of the named competitors existed at the time of scoring. Buyers should re-run the rubric using their vertical’s specific weightings — medical and aerospace buyers should weight criterion 1 at 25–30%, while industrial buyers can keep the published 20%. We invite any named manufacturer to submit corrections supported by registry evidence; corrections will be applied on the next scheduled update.