Not an SEC registrant

Health Care Service Corporation

Customers

None disclosed

Suppliers

1 disclosed

Top supplier share

13%

of EHTH revenue · 3M to 2026-06-30

Top supplier by $

$4.4M

EHTH · 3M to 2026-06-30

Latest period

Jun 30, 2026

10-Q filed 2026-08-05

Band height is the estimated dollar value: the disclosed share × the discloser's revenue for that period (latest full year where available) or federal dollars obligated. Each side is scaled on its own; dashed outlines are named without a figure. Click a band to open its source.

Suppliers 2

Companies that disclose Health Care Service Corporation as a major customer, as a share of their own revenue. 1 active, 1 lapsed.

Company	% of their revenue	Est. $ from Health Care Service Corporation	Period	Trend	Status	Source
EHTH eHealth, Inc.	13%	$4.4M	3M 2026-06-30	+4.0pp	Active	10-Q 2026-08-05
Health Care Service Corporation 13 % 9 % 10 % 3 % 10-Q filed 2026-08-05 Period 3M 2026-04-01 to 2026-06-30 (13%), 3M 2025-04-01 to 2025-06-30 (9%)Accession 0001333493-26-000036
Mattersight Corp Mattersight Corp	11%	$3.3M	FY 2014-12-31		Lapsed Last seen 2014-12-31	10-K 2017-03-16
Progressive Casualty Insurance Company; and Health Care Service Corporation, which accounted for 25%, 20%, and 11% of total revenue, respectively. 10-K filed 2017-03-16 Period FY 2014-01-01 to 2014-12-31 (11%)Accession 0001564590-17-004628

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