Vanguard International (VIS) → Efficient Power Conversion
Yes, wafergraph tracks Vanguard International (VIS) as a supplier of Efficient Power Conversion, as of 2026-10-09. Efficient Power Conversion sources from 1 tracked supplier in this dataset; Efficient Power Conversion has only 1 tracked supplier in this dataset.
Data as of 2026-10-09 · relationship type: tracked supplier → customer · both names resolve in companies.json · no dollar amount is shown unless it already sits on a company record, and none is invented here
Why this edge matters
Vanguard International (VIS) (challenger in Foundry) is a tracked supplier of Efficient Power Conversion (niche in Analog, Power, RF). TSMC-affiliated specialty foundry for display drivers and power. Gallium-nitride (GaN) power transistors and integrated circuits. The edge is one of 1 tracked supplier of Efficient Power Conversion and one of 12 tracked customers of Vanguard International (VIS).
Source: derived from both company records and the counted edges.
Concentration / risk note
Efficient Power Conversion has only 1 tracked supplier in this dataset. Concentration on the supplier side is high.
Basis: few suppliers. Omitted on edges where the graph does not back a concentration claim.
The two companies
Vanguard International (VIS) (supplier)
TSMC-affiliated specialty foundry for display drivers and power.
Efficient Power Conversion (customer)
Gallium-nitride (GaN) power transistors and integrated circuits.
Other tracked customers of Vanguard International (VIS)
Frequently asked questions2
- How many suppliers does Efficient Power Conversion have?
- The dataset records 1 tracked suppliers for Efficient Power Conversion.
- How many customers does Vanguard International (VIS) have?
- The dataset records 12 tracked customers for Vanguard International (VIS).
Cite as: wafergraph, “Vanguard International (VIS) → Efficient Power Conversion — supplier relationship in the semiconductor supply chain”, https://wafergraph.com/relationship/vis/epc/ (data as of 2026-10-09).
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