---
title: "September 16–17 Investment News: Impulse $808M D, BCV $1.6B, Portage $600M"
description: "September 16–17, 2026: Impulse Space added $308 million to Series D (combined $808 million; Reuters source $5.6 billion). Bain Capital Ventures closed Fund XI at $1.6 billion. Portage closed Ventures IV at about $600 million ($7.0 billion is AUM). Noetive launched with $41 million seed. Treble $18 million and syte €9 million are briefs."
date: 2026-09-17T00:00:00.000Z
source: https://venturecapitaltracker.com/2026-september-16-17-investment-news-impulse-bcv-portage
---

# September 16–17 Investment News: Impulse $808M D, BCV $1.6B, Portage $600M

> September 16–17, 2026: Impulse Space added $308 million to Series D (combined $808 million; Reuters source $5.6 billion). Bain Capital Ventures closed Fund XI at $1.6 billion. Portage closed Ventures IV at about $600 million ($7.0 billion is AUM). Noetive launched with $41 million seed. Treble $18 million and syte €9 million are briefs.

September 16–17 adds **[Impulse Space](/startup/impulse-space)**’s **$308 million** Series D **extension** (combined D **$808 million**; company **omitted** the mark; Reuters source **$5.6 billion**), **[Bain Capital Ventures](/fund/bain-capital-ventures)** **Fund XI at $1.6 billion** (not Bain Capital’s **~$225 billion** AUM), **Portage Ventures IV at about $600 million** (**$7.0 billion** is platform AUM), and **[Noetive](/startup/noetive)**’s **$41 million** Eclipse-led seed. Treble **$18 million** and syte **€9 million** stay briefs. Dated snapshot **September 17, 2026**; not a live deal feed.

## Deep dives

| Date | Entity | Amount | Type | What is actually known | Follow-up |
| --- | --- | --- | --- | --- | --- |
| Sep 16 | [Impulse Space](/startup/impulse-space) | **$308M** ext. | Series D | Combined D **$808M**. Reuters source **$5.6B**. June Reuters **$4.26B** on the **$500M**. | [Impulse memo](/2026-impulse-space-308m-series-d-extension-808m) |
| Sep 16 | [Bain Capital Ventures](/fund/bain-capital-ventures) | **$1.6B** | Fund XI | Early + growth. Bloomberg predecessor **$1.4B**. **$225B** is parent AUM. | [BCV memo](/2026-bain-capital-ventures-1-6b-fund-xi) |
| Sep 16 | Portage | **~$600M** | Ventures IV final | **$7.0B AUM includes this fund** (Jun 30). Broadridge + Fifth Third named LPs. | [Portage memo](/2026-portage-ventures-600m-fund-iv) |
| Sep 16 | [Noetive](/startup/noetive) | **$41M** | Seed | Eclipse built + led. **No valuation.** [Craft](/fund/craft-ventures) and Swish participated. | [Noetive memo](/2026-noetive-41m-seed-eclipse-physical-ai) |

## Briefs

| Date | Entity | Amount | Notes |
| --- | --- | --- | --- |
| Sep 17 | Treble Technologies | **$18M** Series A-2 | Paladin Capital Group led; KOMPAS, Frumtak, EIC Fund returned. Tech.eu: lifetime **€36M** — do not add $18M onto €36M as one currency. Acoustic simulation / synthetic audio data. [Tech.eu](https://tech.eu/2026/09/17/treble-raises-18m-to-scale-acoustic-simulation-for-physical-ai/). |
| Sep 17 | syte | **€9M** Series A | German land/property planning software. amberra led; NRW.BANK new. Schwarz Group, HTGF among existing. Company: **62 million** parcels, **200+** customers. [Tech.eu](https://tech.eu/2026/09/17/syte-raises-eur9m-to-automate-early-stage-real-estate-planning/). Below standalone bar here. |

## Easy to get wrong

- Impulse **$808M** is the **combined Series D**, not a new $808 million check. **$5.6B** is Reuters, not the company.
- BCV **$1.6B** ≠ Bain Capital **$225B**. Predecessor **$1.4B** is Bloomberg.
- Portage **$600M** ≠ **$7.0B** AUM ≠ Sagard **$47B**.
- Noetive **$30T** is TAM copy. **No** mark.
- Treble lifetime **€36M** vs this round **$18M** — mixed currency.

Month hub: [September 2026 VC news](/2026-september-vc-news).

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** September 17, 2026

**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.