RIDYS Group is a specialized provider of quality services for the automotive industry in San Luis Potosí, Guanajuato, Querétaro, and Aguascalientes, and on request in Jalisco and Coahuila. We operate inside plants and in warehouses, with our own personnel, on-site supervision, and auditable documentation for every service.
We serve OEM plants and Tier 1 suppliers under the protocols their customers require: containment, controlled shipping, 100% inspection, rework, and quality representation at the customer’s plant.

We operate under a quality management system certified to ISO 9001:2015 by Orion Registrar, an ANAB-accredited body.
We have REPSE (Mexico’s Registry of Specialized Service Providers) registration ARR197/2024 with Mexico’s Ministry of Labor (STPS), under the reform on subcontracting of specialized services. The registration can be verified directly in the STPS public registry.
This means our services are contracted without joint liability exposure for the customer, and the complete file — certificate, registration record, IMSS no-debt letter, and SAT compliance opinion — is available for supplier onboarding.
When a plant calculates what a quality problem costs, it almost always adds up only what is visible: scrapped material, rework hours, expedited freight. That is the tip of the iceberg.
Below the waterline is the rest. The line that stopped while someone decided what to do. The quality engineer who dropped three projects to handle the containment. The shipping capacity consumed by rework instead of production. The supplier score that went down, and the future business that score determines.
An external containment service is not an expense added to that cost: it is the mechanism that stops it. The difference between containing in the first 48 hours and containing the following week is rarely measured in the price of the service, and almost always in what happened in the meantime.

Inspection
Product verification against documented criteria, inside the plant or in a warehouse. Includes incoming inspection, in-process inspection, and pre-shipment verification. Each shift generates a report with quantity inspected, quantity conforming, and quantity nonconforming, with the criterion applied. View Inspection
Part Sorting
Separation of conforming and nonconforming material in an identified lot. Applied when lot contamination is suspected, when the customer detected a defect on their line, or when held inventory must be released. Each inspected part carries a traceable verification mark. View Part Sorting
GP12
Early containment protocol at launch. Additional 100% inspection of customer-defined characteristics, maintained until the agreed exit criterion is met. Daily documentation of results. View GP12
Rework
Recovery of nonconforming material through an approved rework operation. Includes work instruction, first-part validation, and subsequent verification. Performed at the plant or in a warehouse, as needed. View Rework
CS1 and CS2
Controlled Shipping Level 1 and Level 2, when the OEM imposes it. In CS2, verification is performed by a third party independent of the supplier — what is known as third-party quality services—, with direct reporting to the customer. We support the process until the condition is lifted. View CS1 and CS2
Resident Quality Engineers
Quality engineer assigned to the customer’s plant who represents the supplier before the plant’s quality team. Responds to alerts, takes part in root cause analysis, and follows up on corrective actions. View Resident Quality Engineers
Contract Assembly and Subassembly
Assembly, subassembly, and packaging operations to customer specifications, with our own personnel and supervision. View Contract Assembly and Subassembly
Quality Consulting and Projects
Technical support with 8D, PPAP, root cause analysis, and audit preparation. View Quality Consulting and Projects

An 8D stands on the data that feeds it. If the containment only reports “4,000 parts inspected, 37 nonconforming,” the root cause analysis starts with a number and no information.
What does help is disaggregated data: on which shift they appeared, in which tray position, whether they cluster in a serial number range, whether the defect changes frequency when the operator or the mold changes. That segmentation cannot be rebuilt later — it is captured during inspection or it is lost.
Our reports are structured to feed the customer’s analysis, not just to account for hours worked.
Based in San Luis Potosí, with regular coverage in Guanajuato (León, Silao, Irapuato, and Celaya), Querétaro, and Aguascalientes; on request, in Jalisco and in Saltillo and Ramos Arizpe, Coahuila. Our own personnel, our own transportation, and on-site supervision on every service.
Av. Universidad 1085, Azteca Norte, 78310, San Luis Potosí, S.L.P.
Phone: 444 171 4514
Describe the material, the defect, and the volume, and we will send back a proposal with rate, start-up time, and reporting scheme.
RIDYS Group · Av. Universidad 1085, Azteca Norte, 78310 San Luis Potosí, S.L.P. · Phone: 444 171 4514