SEC filings · customer concentration

Who depends on Southern California Edison And Clark County School District

1 listed supplier reports Southern California Edison And Clark County School District as a customer worth 10% or more of their revenue, led by Willdan Group at 23%.

0major customers now
—of revenue from them
1listed suppliers depending on it
2026–2026years covered
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Suppliers that depend on Southern California Edison And Clark County School District

Listed companies whose annual report names Southern California Edison And Clark County School District as a customer worth 10% or more of their revenue. If Southern California Edison And Clark County School District cuts orders or switches supplier, these are the companies that feel it.

SupplierIts revenue from this companyChange vs prior yearHistoryLatest filing
Willdan GroupWLDN23%newFY 2026: 23%1 yearFY 2026 · filed 27 Feb 2026

About this data

US-listed companies must disclose revenue from any single customer that reaches 10% of their total (ASC 280). ShadowGraph reads these disclosures from the XBRL data of every 10-K and 20-F we scan, keeps one value per fiscal year (restatements replace earlier values) and links each number to its filing. Companies that describe a customer only as "Customer A" are not listed by name. Figures are as reported; nothing here is investment advice.

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