Irvine, CA · Technology · Form D filed Sep 17, 2026
Sierra International Network Inc. raised $502M
Sierra International Network Inc. is a technology company based in Irvine, California. In a Form D filed with the SEC on September 17, 2026, it reported raising $502,000,000 from 2 investors as part of an offering of up to $502,000,000. The first sale in the offering took place on September 15, 2026.
- 9th Form D since 2024. Earlier new notices: Aug 13, 2026 · Apr 16, 2026 · Jul 8, 2025 · May 19, 2025 · Mar 18, 2025 · Mar 8, 2024 and more. All filings on EDGAR
$1.2B raised since 2020
9 Form D offerings, as reported to the SEC, the first in Feb 12, 2024. Amendments update a round; they aren't counted twice.
| Filed | Sold | Offering size | Investors |
|---|---|---|---|
| Sep 17, 2026 | $502M | $502M | 2 |
| Aug 13, 2026 | $145M | $145M | 1 |
| Apr 16, 2026 | $145M | $145M | 4 |
| Jul 8, 2025 | $136M | $136M | 5 |
| May 19, 2025 | $104M | $104M | 1 |
| Mar 18, 2025 | $120M | $120M | 1 |
| Mar 8, 2024 | $25M | $25M | 2 |
| Feb 22, 2024 | $15M | $15M | 1 |
and 1 earlier.
Lead score
28 out of 100
filed recently budget to spend young company
Outreach kit How it works 1:21
A first message that shows you did your homework, written from this filing. Fill in the brackets and send.
Email · subject: Congrats on the new round
Hi [first name], Congrats on the new round. I saw the raise in your SEC filing. Teams at this stage usually start looking at [what you do] right after a round... [Your name]
LinkedIn note
Congrats on the new round. I work with [who you help] on [what you do] right after a raise. Open to connecting?
Call opener
Hi, this is [your name] from [company]. I am calling because you just filed a raise with the SEC...
Find the right person Founders & CEO · Finance · Operations · People & hiring · Sales & marketing
Track this company How it works 0:56
Saved to your dashboard pipeline, with a badge in Explore.
Loading your outreach kit…
The outreach kit is part of Pro. Copy-ready email, LinkedIn and call openers for every new raise, plus daily alerts for the companies you sell to.
Filing details
- Amount raised
- $502,000,000
- Offering size
- $502,000,000
- Investors so far
- 2
- Minimum investment
- $1,000,000
- First sale
- September 15, 2026
- Securities offered
- Equity
- Exemption claimed
- Rule 506(b)
- Industry
- Technology
- Headquarters
- Irvine, California
- Incorporated
- California, 2024
- Entity type
- Corporation
Filings
| Filed | Form | Raised | Offering size | Investors | Source |
|---|---|---|---|---|---|
| D (new notice) | $502,000,000 | $502,000,000 | 2 | SEC filing | |
| D (new notice) | $145,000,000 | $145,000,000 | 1 | SEC filing |
Figures come from the company's own filings with the SEC and are shown as reported. How to read a Form D.
Updated · Raises in the week of Sep 14, 2026 · Technology funding in California · September 2026 funding report
Similar raises
Sialia Therapeutics, Inc.
Irvine, CA · filed Sep 29First Form D
Vertical Longevity Pharmaceuticals, Inc.
Irvine, CA · filed Sep 28First Form D
Celero Communications, Inc.
Irvine, CA · filed Sep 94th Form D since 2024
Eagle Mountain Data Inc
Irvine, CA · filed Aug 102nd Form D since 2025
Knowable Labs, Inc.
Saratoga, CA · filed Oct 16Knowable Labs builds AI forecasting for news, politics, and finance and trades it autonomously on prediction and capital markets. Live, audited track record.
First Form D
Armadin, Inc.
Menlo Park, CA · filed Oct 153rd Form D since 2025
Unseen Reality Inc.
Mountain View, CA · filed Oct 15First Form D
Cofertility, Inc.
Los Angeles, CA · filed Oct 15
A human-centered egg donation platform connecting donors and intended parents. Freeze your eggs for free or grow your family through our egg-sharing model.
2nd Form D since 2025Still raisingHiring · 4 roles