Grindstone Ventures has launched a R500 million venture fund, worth about $31 million, to back high-growth, technology-enabled African companies from Seed through Series A. The new vehicle is designed to address one of the continent’s most persistent venture capital gaps: the period after a startup has demonstrated commercial demand but before it has reached the scale typically required by larger institutional investors.
Led by Thandiwe Maqetuka and established in partnership with Knife Capital and Thinkroom, the fund is targeting an initial close of R150 million. It plans to build a portfolio of 15 to 20 companies, primarily in South Africa while making selective investments elsewhere on the continent.
Key Overview
The R500 million venture fund will invest from Seed through Series A and retain capacity to provide follow-on capital to its strongest-performing businesses. Its strategy combines funding with hands-on support in governance, commercial growth, market access, fundraising and exit preparation.
The launch comes as Africa’s early-stage funding pipeline remains under pressure. In 2025, Seed funding declined for a third consecutive year, even as overall technology funding on the continent recovered. That mismatch has intensified concerns that promising startups may struggle to secure the capital needed to progress into larger Series A and later-stage rounds.
Targeting Africa’s Seed-to-Series A Funding Gap
Grindstone Ventures is positioning the new fund around what it describes as Africa’s “missing middle”: businesses that have moved beyond early experimentation and established evidence of customer demand, but remain too small or underdeveloped to attract institutional-scale funding.
This gap has become more visible as investors have shifted toward more mature companies. African technology startups raised about $4.1 billion in equity and debt funding in 2025, up 25% from the previous year, but the recovery was uneven. Seed-stage capital fell to $462 million, down 4% year on year, while Series A investment increased as investors placed larger amounts into companies that had already demonstrated stronger traction.
The challenge is therefore not simply whether capital exists, but whether enough companies can bridge the transition from early validation to institutional readiness. The new fund is intended to enter before that transition is complete and help portfolio businesses build the operating structure, governance and growth profile needed to attract larger investors.
First Close Targets R150 Million
The fund is seeking a first close of R150 million before progressing toward its overall R500 million target. It intends to invest in between 15 and 20 businesses, giving the manager room to diversify its initial portfolio while concentrating additional capital behind companies that perform strongly.
Rather than spreading capital evenly across all investments, Grindstone Ventures plans to take meaningful minority positions and reserve follow-on funding for stronger performers. This model allows the fund to establish exposure to a wider pool of companies at entry and then increase its investment in businesses that demonstrate better execution and growth.
South Africa will remain the primary investment market, although the fund expects to make selected investments elsewhere in Africa. The broader strategy reflects the fund’s focus on technology-enabled companies capable of scaling beyond their original markets.
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Active Support Goes Beyond Providing Capital
The fund is also designed around active portfolio support rather than passive financing. Companies are expected to receive assistance in strategy, governance, commercial expansion, market access, follow-on fundraising and preparation for eventual exits.
That approach builds on the wider Grindstone ecosystem, which screens more than 1,000 businesses annually and supports around 50 companies through accelerator programmes each year. Its existing post-seed investment model is structured around identifying scalable businesses through the accelerator pipeline and helping them progress toward Series A readiness.
The combination of accelerator access and venture investment could give the fund a relatively deep sourcing pipeline while allowing the investment team to assess companies before committing larger amounts of capital.
Fund I Provides the Track Record
The new vehicle follows Grindstone Ventures Fund I, which invested in seven companies. Portfolio businesses included Locstat, Welo and AgriLogiQ, with several later raising additional equity funding from international investors.
The first fund also helped demonstrate how Grindstone intends to connect acceleration, investment and exit readiness. The manager says it is finalising an exit from Fund I that is expected to return capital to investors, an important milestone in an African venture market where liquidity remains a persistent challenge.
This focus on realised returns is central to the new strategy. Rather than measuring success primarily through rising paper valuations, the fund intends to build companies with potential pathways to acquisitions, secondary transactions or other liquidity events that can return cash to investors.
Inclusion Is Built Into the Investment Strategy
Grindstone Ventures is also seeking to widen access to venture capital. The fund aspires for at least 50% of its portfolio companies to be black-owned and is pursuing balanced representation of female founders and women in leadership.
The investment manager describes the vehicle as a female-led, black-empowered fund, positioning inclusion alongside its financial-return objectives rather than treating the two as separate mandates.
If the fund reaches its R500 million target and successfully moves companies through the difficult Seed-to-Series A transition, it could provide both capital and a repeatable model for addressing one of the most important weaknesses in Africa’s startup financing pipeline.
Sources: Bizcommunity / Partech Africa / Africa Private Equity News / Thinkroom / Dealroom
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