# TURNSTONE SYSTEMS INC

TURNSTONE SYSTEMS INC is a company headquartered in Santa Clara, CA, United States.

## Company overview

- **Legal name:** TURNSTONE SYSTEMS INC
- **Classification:** Company
- **Industry (SIC):** 3661 — Telephone & Telegraph Apparatus
- **Headquarters:** Santa Clara, CA, United States
- **Incorporated in:** DE
- **Fiscal year end:** December 31
- **SEC CIK:** 0001054131

## About

TURNSTONE SYSTEMS INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001054131, and its reported industry is Telephone & Telegraph Apparatus. The retained history contains 12 filings, including 8-K filed on 2009-10-30. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 8-K — filed 2009-10-30 — period 2009-10-30
- Form 8-K — filed 2009-10-09 — period 2009-10-07
- Form 10-Q — filed 2009-08-11 — period 2009-06-30 — FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2009
- Form 10-Q — filed 2009-05-13 — period 2009-03-31 — FORM 10-Q
- Form 10-K — filed 2009-03-20 — period 2008-12-31 — FORM 10-K
- Form 10-Q — filed 2008-11-13 — period 2008-09-30 — FORM 10-Q
- Form 10-Q — filed 2008-08-13 — period 2008-06-30 — FORM 10-Q
- Form 10-Q — filed 2008-05-15 — period 2008-03-31 — FORM 10-Q
- Form 8-K — filed 2007-10-10 — period 2007-10-04 — FORM 8-K
- Form SC 13G — filed 2007-02-12 — TURNSTONE
- Form SC 13G — filed 2006-04-19
- Form 10-Q — filed 2004-11-09 — period 2004-09-30 — FOR THE FISCAL QUARTER ENDED SEPTEMBER 30, 2004

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Updated: 2026-10-23T22:31:33Z

Canonical page: https://altss.com/profile/turnstone-systems-inc

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