Ostara
PrivateLast Round
Grant
Mar 14, 2023
Total Funding Raised
$100.6M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Ostara operates in Energy & Sustainability and is based in Saint Louis, Michigan. Its latest recorded funding round was a Grant round in March 2023.
Ostara is an agricultural chemicals company that manufactures and supplies high-efficiency phosphate fertilizers designed to improve crop yields and reduce nutrient runoff.
Sector
Energy & Sustainability
Verticals
Water Treatment, Circular Economy, Waste Management
Business Model
B2G
Customer Profile
Hardware Sales, Government Contracts, Services & Consulting, Revenue Share
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Ostara Comparables
Compare Ostara with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| HydroPhos Solutions | 81% | |
| Roca Water, Inc. | 79% | |
| Sedron Technologies | 77% |
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Ostara Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Mar 14, 2023 | ||||
| Series C | Oct 28, 2022 | ||||
| Series B | Apr 19, 2021 | ||||
| M&A | Jul 7, 2020 | ||||
| VC Round | Oct 7, 2019 | ||||
VC Round | Jan 3, 2019 |
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Key People
Founding team and executive leadership
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Ostara Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Grosvenor Food & AgTech | Series C, Series B, VC Round, M&A |
| Cibus Capital LLP | Series C |
| ADM Capital | Series B |
| Carica Sustainable Investments | Series C |
| Export Development Canada | Series B |
| VantagePoint Venture Partners | VC Round |
| Frog Capital | VC Round |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 27, 2026
Open roles increased to 44, representing 67% of headcount.
- Jul 13, 2026
Open roles increased to 32, representing 48% of headcount.
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Ostara Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Ostara's valuation, stock price, and market status.
Is Ostara a public or private company?
Ostara is a private company.
What is the current stock price of Ostara?
Ostara is a private company, so its shares have no public market price. Caplight tracks Ostara's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Ostara worth (valuation)?
Valuation information for Ostara is not publicly available.
Can I buy Ostara stock?
Ostara shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Ostara's last funding round?
Ostara's most recent funding round was Grant on March 14, 2023.
Who are the main investors in Ostara?
Key investors in Ostara include Grosvenor Food & AgTech, VantagePoint Venture Partners, Forage Capital Partners.
Will Ostara IPO soon?
No public IPO plans have been announced for Ostara.
How can I track Ostara secondary market activity?
Caplight tracks bids, offers, and trades in Ostara's shares on secondary markets.