SEC filings · customer concentration

Who depends on Spark Charge

1 listed supplier reports Spark Charge as a customer worth 10% or more of their revenue, led by Pioneer Power Solutions at 13%.

0major customers now
—of revenue from them
1listed suppliers depending on it
2025–2026years covered
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When a new annual report adds a 10% customer, drops one, or moves a share by 5 points or more, you get the change and the filing link. Up to 10 companies per address, no account, unsubscribe with one click.

Suppliers that depend on Spark Charge

Listed companies whose annual report names Spark Charge as a customer worth 10% or more of their revenue. If Spark Charge cuts orders or switches supplier, these are the companies that feel it.

SupplierIts revenue from this companyChange vs prior yearHistoryLatest filing
Pioneer Power SolutionsPPSI13%newFY 2025: 13%1 yearFY 2025 · filed 8 Apr 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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