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Sierra Space funding in 2026: 1 reported event

The latest Sierra Space funding event on this page is a Form D offering of $550M, dated Mar 16, 2026, from an SEC Form D filing.

PrivateDefense and Space Manufacturing1,001 to 5,000 employeessierraspace.comLinkedIn

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Funding events
1
Latest
Mar 16, 2026
Latest event
Form D offering
Latest Form D
Mar 16, 2026

Source: Autobound Signal API · 37 signals tracked for Sierra Space · updated

Funding · latest 1

Latest Sierra Space funding events

  1. Form D offeringSEC Form D$550M
    Filed with the SEC: Sierra Space Corp filed a Form D with the SEC, reporting $550M sold, of a $550M offering.
    SEC EDGAR

Signal API · MCP

Track Sierra Space with the Signal API

One POST /v1/companies/enrich call with sierraspace.com returns Sierra Space funding signals (news, sec-form-d-funding), each with its source. Or ask Claude through MCP.

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2 credits per signal returned; zero-result calls are free. Endpoint reference

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "domain": "sierraspace.com",
    "signal_types": ["news","sec-form-d-funding"],
    "signal_subtypes": ["receives_financing","has_valuation","goes_public",
      "newFilingCompany","amendmentCompany"],
    "limit": 20
  }'

Bulk data

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Get a free sample file or a bulk feed (API, GCS push, flat file). The sample is real SEC Form D Funding records, as a CSV.

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Questions about Sierra Space funding

How much has Sierra Space raised?
This page tracks 1 funding event for Sierra Space. The latest is a Form D offering of $550M, dated Mar 16, 2026, from an SEC Form D filing. We do not publish a total raised: coverage has gaps and recap stories repeat old rounds.
Has Sierra Space filed a Form D with the SEC?
Yes. The latest Form D on this page is dated Mar 16, 2026 and states $550M. The table links to the filing on EDGAR.

Page updated , the date of the newest row on this page.

Source. News reports of rounds, valuations and IPOs, plus SEC Form D filings.

Method. Stories about the same round within 14 days merge into one row. Fund and SPV Form D filers are removed. No total is computed.

Data as of .

How this data is built →Get it from the Signal API →