Sample supplier report · October 21, 2026

PCB assembly and box build suppliers, India

Best electronics contract manufacturers in India” Assumed: any volume · ISO 9001, IPC-A-610The buyer’s question, as they typed it. Assumed: Assumed: any volume · ISO 9001, IPC-A-610.

The answer

Send the RFQ to Kaynes Technology India, Vasantha, Argus and Cubix; 13 questions to settle first. Lead with Kaynes Technology: 600 million SMT placements a year across 8 plants; second-source Vasantha Advanced Systems, 3 plants, ISO 9001:2015 confirmed.

The shortlist

Rank	Supplier	Role	Where	Score
1	Kaynes Technology India Ltd	Lead	Mysuru	20 / 20
2	Vasantha Advanced Systems	Second source	Coimbatore	18 / 20
3	Argus Systems (AESPL)	Fallback	India	18 / 20
4	Cubix Control Systems Pvt. Ltd.	Fallback	Noida	18 / 20
5	Vinrox Technologies Private Limited	Watch	Vadodara	18 / 20

Scorecard, criterion by criterion

Criterion	Kaynes Technology India	Vasantha	Argus	Cubix	Vinrox
PCB assembly ×2Your ask	8	6	6	6	6
India location ×2Your ask	8	8	8	8	8
Box build	4	4	4	4	4
Total of 20	20	18	18	18	18

Points as weighted: the buyer’s asks count double where marked. A dash means nothing published backs a score, so it isn’t counted as zero.

The suppliers

Kaynes Technology India Ltd

Lead · Mysuru, India

Kaynes has the deepest scale and range of the suppliers researched. Supplies mechanical parts, transformers, cable sets and card cages beyond boards. Serves automotive, aerospace and defence, medical and railway customers.

Vasantha Advanced Systems

Second source · Coimbatore, India

Vasantha pairs a confirmed quality certificate with mid-size, multi-plant capacity. ISO 9001:2015 named on its website, checked on a second site. 3 plants with 160K+ sq ft of manufacturing space.

Argus Systems (AESPL)

Fallback

Argus suits high-reliability work, with Class III workmanship stated. ISO 9001 named on its website, checked on a second site. Hyderabad site address verified.

Key findings

India’s supply base: $87.3B india exports to US (2025).
Argus names the most customers (3); Kaynes Technology India next (2).
US duty on Indian goods is 10% against 37.5% from China
Changes to watch at five suppliers.

Settle these before you send the RFQ

Q1Confirm in writing: ISO 9001.
Q2Confirm in writing: IPC-A-610.
Q3Ask every bidder for the floor area of the plant that would build the order.
Q4IPC-A-610 workmanship class used on PCB assembly. (Kaynes Technology India)
Q5Current ISO 9001 certificate, registrar and certified sites; only IPO notes and an old listing state it. (Kaynes Technology India)
Q6Current ISO 9001 certificate and registrar; pages name both TÜV Nord and KEMA. (Vasantha)
Q7SMT line count, placement capacity and IPC-A-610 class. (Vasantha)
Q8Confirm its sites in India, by city. (Argus)
Q9Certificate copies with registrar and expiry; staff and line capacity at the Hyderabad site. (Argus)
Q10Actual headcount and current certificate editions; older pages cite superseded standards. (Cubix)
Q11Legal entity history and ISO 9001 certificate details for the new private limited company. (Vinrox)

How the research was done

40 found → 39 fit the brief → 20 researched → 5 ranked. Every score in the full report links to the page it came from, and the open questions are written out for the RFQ.

Sources

Read the full report

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