· Investment Strategies · 6 sources · Verified
September 16–18 Investment News: Mazama $135M, Ridgeline $1.425B, Matter $450M
Mazama announced $135 million of new capital including Series B (Axios: funding and grants). Ridgeline closed $250 million Series E at $1.425 billion, Duffield-led. Matter closed Fund II at $450 million. Roundup: Activate $105M, Raindrop Series A (amount undisclosed, $50M total), dtcpay $25M Series A completion.
By Venture Capital Tracker Editorial
September 16–18 adds three prints that were not on the September month hub through the 12th: Mazama Energy’s $135 million of new capital (Series B inside the bag), Ridgeline’s $250 million Series E at $1.425 billion, and Matter Venture Partners’ $450 million Fund II. Dated snapshot through September 18, 2026. Not a live deal feed.
Headlines
| Date | Entity | Amount | Type | What is actually known | Follow-up |
|---|---|---|---|---|---|
| Sep 17 | Mazama Energy | $135M new capital | Series B included | Centaurus + Doerr. Axios: funding and grants. No valuation. Khosla returning. | Mazama memo |
| Sep 16 | Ridgeline | $250M at $1.425B | Series E | Duffield led. Bloomberg $1.4B. Not Ridgeline Ventures. No ARR. | Ridgeline memo |
| Sep 16 | Matter Venture Partners | $450M | Fund II close | ASML, TSMC, Kleiner Perkins among LPs. Eridu overlap. ** | Matter memo |
Roundup
Activate — $105 million maiden fund (Sep 16). Inc42: $85 million early-stage vehicle plus $20 million through growth vehicles. First close was $75 million in December 2025. Founders Aakrit Vaish and Pratyush Choudhury. Ten investments named including Sarvam AI, ElevenLabs, and Wispr Flow; seven Inception bets remain stealth. Dealroom’s $110 million hed is wrong — the body is $105 million. ₹1,000 Cr is Inc42’s conversion of the same close, not extra capital.
Raindrop — Series A led by CRV; $50 million total (Sep 17). TMCnet and follow-on wires: CRV led; Lightspeed and Y Combinator participated. The Series A amount was not disclosed. Prior company print: $15 million from Lightspeed in December 2025. Named users include Vercel, Framer, and Clay. Company blog had not published a Series A post when we checked. Simulations is a research preview, not a revenue print.
dtcpay — $25 million Series A completed (Sep 18). PR Newswire: Vertex Ventures Southeast Asia & India led the earlier tranche ($10 million, April/March 2026 depending on outlet). SBI Group joins via SBI Ventures Asset and the SBI-NTU-Kyobo Digital Innovation Fund. Genedant Capital and Kwee Liong Tek participated. CoinDesk: valuation and revenue undisclosed. Singapore Major Payment Institution. Do not call the September print a new $25 million on top of the $10 million — it completes the Series A.
Why these three, not a fourth standalone
Mazama is the climate tape next to Fervo and Form Energy. Ridgeline is a $1.425 billion software mark with a founder lead — easy to confuse with the Memphis fund we already list. Matter is a $450 million HardTech close whose LP list (ASML/TSMC) is the story, and it already sits on Eridu. Activate, Raindrop, and dtcpay are real and sourced; they do not clear a standalone bar once the missing splits (growth sleeve, Series A amount, extension vs new money) are honored.
What we skipped, and why
| Item | Reader reason |
|---|---|
| Larger Sep 16–18 AI infra / agent / space prints | Covered separately on their own dated pages. Not re-listed here. |
| Treble $18M A-2 / syte €9M | Sub-standalone. Mixed FX lifetime headlines. |
| TesterArmy $1.2M / Expanse $5.3M / Hypercubic $5.3M | YC-adjacent seeds below this index’s bar. |
| CodeRabbit $60M Series B | 16 Sep 2025 reprint risk. |
August comparison remains August 2026 VC news. Month hub: September 2026 VC news.
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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.
