Skip to content
Raise Lens

New climate funds raised in September 2026

By Andrew Holden

Ten funds disclosed closes or launches in September 2026, with combined disclosed capital of roughly $1.41bn. The range is wide: from a $9.5m first close financing blue economy projects in small island states to a $300m interim close for landscape conservation across three continents. That spread is itself useful context for founders and nonprofits mapping the investor landscape.

This post covers the fund-side story: capital that has moved from limited partners into fund managers, who will now deploy it into companies and projects. These are not grant programmes to apply to directly. They are the investors worth knowing about and tracking as they begin to write cheques.

The funds

Legacy Landscapes Fund

Legacy Landscapes Fund reached an interim close of $300m, with the German Federal Environment Ministry as an anchor investor. The fund backs landscape conservation and nature-based solutions across Africa, Asia, and Latin America. You can read more in the announcement.

BlueOrchard: BlueOrchard Climate Action Mobilisation Fund

Based in Zurich, BlueOrchard held the first close of its Climate Action Mobilisation Fund at $250m. British International Investment (BII) served as anchor investor. Details on strategy and target size are in the announcement.

Blue Earth Capital: Impact Secondaries Strategy

Also headquartered in Zug, Switzerland, Blue Earth Capital raised over $200m for its Impact Secondaries Strategy. Anchor investors include Builders Vision, iAlumbra Capital, and Sonen Capital. The secondaries structure means the fund acquires existing positions in impact-oriented funds rather than making primary investments into companies. See the announcement for further detail.

MassMutual Ventures: green technology fund

MassMutual Ventures launched a $150m dedicated green technology fund targeting climate and sustainability startups globally, with a focus on inception and seed stage. More information is on their website.

MassMutual Ventures: Climate Technology Fund II

Alongside the green tech fund, MassMutual Ventures also launched Climate Technology Fund II at $150m. This vehicle targets early-stage companies working at the intersection of climate technology, energy infrastructure, and real estate in North America. Further detail is on their website.

Pulse Fund

Pulse Fund closed its inaugural fund at $63m. The fund invests in climate, infrastructure, food, and mobility startups at growth and Series stages. More on their website.

Energy Revolution Ventures: ERV Fund II

London-based Energy Revolution Ventures held the first close of ERV Fund II at $13.5m against a $50m target, with Centrica as anchor investor. The fund is still raising toward its target. See the announcement for detail.

Outrigger: Outrigger Impact Fund I

Outrigger closed the first tranche of Outrigger Impact Fund I at $9.5m, anchored by the Nordic Development Fund. The fund focuses on blue economy projects in Small Island Developing States, a geography underserved by most climate capital.

Wittington Ventures

Toronto-based Wittington Ventures reached the final close of its third fund at $180m. The fund is generalist across commerce, consumer, healthcare, climate, and food tech. Climate is one allocation within a broader mandate rather than the primary focus. See the announcement.

Sofinnova Partners: Sofinnova MD Start IV

Sofinnova Partners closed Sofinnova MD Start IV at €82m, oversubscribed. The fund backs early-stage medtech companies, including those addressing health-climate intersections. See the announcement.

What this signals

The clearest pattern in September's closes is a tilt toward nature, geography, and early stage. Three of the ten funds concentrate on conservation, blue economy, or nature-based solutions, and two of those specifically target geographies (small island states, Africa, Asia, Latin America) that larger funds routinely bypass. At the early end of the spectrum, MassMutual Ventures launched two vehicles in the same month, both at seed or early stage, while ERV Fund II and Outrigger Impact Fund I are still raising, which means their mandates are actively forming. The two generalist funds (Wittington and Sofinnova) include climate as a theme within broader strategies rather than as the primary lens, which is worth noting when assessing fit.

Use this in Raise Lens

Knowing that a fund has closed is only useful if you act on it before the manager's early pipeline slots fill. Here is a practical workflow:

  1. Watch the managers. Add each of the ten funds to a Watchlist on /funders. You will get a notification when their status, focus, or contact details are updated on Raise Lens.

  2. Filter by stage and geography. On /funders, apply the stage filter to "seed" or "early-stage" to surface funds actively writing first cheques, then layer on geography to match where your project operates. If you are based in or focused on small island states or sub-Saharan Africa, Outrigger and Legacy Landscapes Fund are worth prioritising.

  3. Set a saved search with alerts. Save a search combining your sector (conservation, blue economy, energy, medtech) with fund status "recently closed" so you catch the next wave of deployable capital as it lands.

  4. Draft before you pitch. For any fund where you have a credible fit, use /draft to build a first-pass funding brief. Getting a concise one-pager together now means you are ready when the fund's deal team opens inbound.

The ten closes above represent capital that is now looking for a home. If your work sits in conservation, nature-based solutions, climate tech, blue economy, or the health-climate intersection, these are managers worth following closely. Browse the full list of active climate-focused funders on /funders and filter to the sectors and stages that match where you are right now.