Just raised · Archive · Week
Startups that raised in the week of August 17, 2026
21 startups announced a funding round in the week of August 17, 2026, raising $3.1B in disclosed capital. The median round was $52M. AI & machine learning was the busiest industry with 9 rounds.
- Announced rounds
- 21Aug 17 to Aug 23
- Raised
- $3.1Bdisclosed
- Median round
- $52Mof 21 with an amount
- SEC filings
- 0no announcement
← Aug 10 to Aug 16 · Aug 24 to Aug 30 → · Download this week as CSV · Every round
This period was added afterwards from news archives and SEC filings (full live tracking began in the week of November 9, 2026). It is less complete than later periods, so treat the totals as a floor.
The week of August 17, 2026 in numbers
- The biggest round was Castelion, which raised $1B Series C on August 21.
- By stage: Pre-seed 3 (14%), Seed and angel 3 (14%), Series A 4 (19%), Series B 2 (10%), Series C and later 3 (14%).
- 9 of the 21 rounds (43%) went to AI and machine learning companies.
- 9 rounds were $100M or more.
- 4 of these companies are posting open roles today, 195 roles in total.
Free to quote with a link to this page. Cite as: Work Insiders, “Startups that raised the week of August 17, 2026”, workinsiders.com/funding/week/2026-08-17/.
The 10 biggest rounds
| Date | Company | Round | Industry | Headquarters | Backers | Source |
|---|---|---|---|---|---|---|
| Castelion (opens in a new tab) | $1B Series C | Defense & space | Orrick (opens in a new tab) | |||
| Higgsfield | $400M Series B · $5.4B valuation | PR Newswire (opens in a new tab) | ||||
| Groq | $350M · $3.5B valuation | AI & machine learning | BigGo Finance (opens in a new tab) | |||
| Wispr | $280M · $2B valuation | TechCrunch (opens in a new tab) | ||||
| Starcloud (opens in a new tab) | $250M | Defense & space | TechCrunch (opens in a new tab) | |||
| Muon Space | $250M Series C | Defense & space | Via Satellite (opens in a new tab) | |||
| Velaura AI | $110M Series A | Developer tools & infrastructure | Business Wire (opens in a new tab) | |||
| Callosum | $100M Seed | Developer tools & infrastructure | Pulse 2.0 (opens in a new tab) | |||
| Rillet | $100M Series C · $1B valuation | TechCrunch (opens in a new tab) | ||||
| Happy Health | $75M | Healthcare & digital health | Fierce Healthcare (opens in a new tab) |
By stage, industry and size
By round
By industry
A company can sit in more than one industry, so shares add up to more than 100%.
By round size
Median round: $52M.
Every round announced in the week of August 17, 2026
| Date | Company | Round | Industry | Headquarters | Backers | Source |
|---|---|---|---|---|---|---|
| Callosum | $100M Seed | Developer tools & infrastructure | Pulse 2.0 (opens in a new tab) | |||
| Starcloud (opens in a new tab) | $250M | Defense & space | TechCrunch (opens in a new tab) | |||
| Castelion (opens in a new tab) | $1B Series C | Defense & space | Orrick (opens in a new tab) | |||
| Buddy Bites | $4.2M Series A | Dealroom (opens in a new tab) | ||||
| Mafix | $5.4M | Hardware & semiconductors | GlobeNewswire (opens in a new tab) | |||
| Guideless | €1M Pre-seed | AI & machine learning | Pulse 2.0 (opens in a new tab) | |||
| Velatir | €5M Pre-seed | Developer tools & infrastructure | Denmark | EU-Startups (opens in a new tab) | ||
| Twin1 AI | $20M Seed | AI & machine learning | Bessemer Venture Partners, Tribeca Venture Partners +1 | Yahoo Finance (opens in a new tab) | ||
| Blaze.tech | $8.5M Pre-seed | Healthcare & digital health | Healthcare IT Today (opens in a new tab) | |||
| Muon Space | $250M Series C | Defense & space | Via Satellite (opens in a new tab) | |||
| MaxQ Medical | $31.5M Series A | Healthcare & digital health | PR Newswire (opens in a new tab) | |||
| Peeko | ₹67.4 crore | Dealroom (opens in a new tab) | ||||
| Jem | $8.4M Series A | Recruiting & HR tech | Dealroom (opens in a new tab) | |||
| Rundoo | $30M Series B | AI & machine learning | Pulse 2.0 (opens in a new tab) | |||
| Rillet | $100M Series C · $1B valuation | TechCrunch (opens in a new tab) | ||||
| Happy Health | $75M | Healthcare & digital health | Fierce Healthcare (opens in a new tab) | |||
| Velaura AI | $110M Series A | Developer tools & infrastructure | Business Wire (opens in a new tab) | |||
| Groq | $350M · $3.5B valuation | AI & machine learning | BigGo Finance (opens in a new tab) | |||
| Terra Industries | $52M Seed | Defense & space | TechCrunch (opens in a new tab) | |||
| Wispr | $280M · $2B valuation | TechCrunch (opens in a new tab) | ||||
| Higgsfield | $400M Series B · $5.4B valuation | PR Newswire (opens in a new tab) |
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Where the numbers come from
Funding announcements in the news and trade press, plus SEC Form D filings by young US companies. Equity rounds only; a company counts once per round. Open roles are today's count on each company's own job board.
How the tracker is builtWho raised most recently
The live list has every round from the last 90 days, ranked for recruiters, with open roles counted daily.
Recently funded startups