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Good practice Imported

Grindstone Accelerator — Scale-Up Programme for Revenue-Stage South African SMEs

South Africa · Cape Town · See the South Africa profile · See the Cape Town profile

Evidence: Descriptive / self-reported Top 29% 76/100 · Ask Evidence Copilot about this practice

Knife Capital and Thinkroom's year-long Grindstone Accelerator works only with revenue-generating South African SMEs. Independent reporting shows cohorts growing revenue 36-88% and creating dozens of jobs; the 2022/23 intake was 64% black-owned.

R500,000 annual revenue (ZAR)
Minimum eligibility revenue
R25 million
Funding secured for COVID-19 continuity (2020)
36%
Cohort 4 collective revenue growth
R35 million
Cohort 4 added revenue
27
Cohort 4 new jobs
54%
Cohort 5 revenue growth
R20 million+
Cohort 5 added revenue
23
Cohort 5 new jobs
88%
Later cohort revenue growth (over nine months)
52
Later cohort new jobs (over nine months)
25
Companies per intake (2022/23) (2022/23)
64%
Black-owned share of 2022/23 intake (2022/23)
36%
Women-owned share of 2022/23 intake (2022/23)
Grindstone Accelerator — Scale-Up Programme for Revenue-Stage South African SMEs

Details

Maturity
Established
Promoter
Knife Capital and Thinkroom Consulting
Period
2013–present
Keywords
SME growth, scale-up acceleration, revenue growth, venture capital, enterprise and supplier development

Context

Grindstone Accelerator is a structured, one-year scale-up programme for established, revenue-generating South African SMEs, requiring applicants to already have paying customers and roughly R500,000 in annual revenue. It was created by Cape Town VC firm Knife Capital and is jointly delivered with Thinkroom Consulting.

Activities

The programme began in Cape Town in 2013-2014, later adding a Johannesburg cohort (2019) and pan-African cohorts under the 'Grindstone Africa' banner, plus sector tracks including a green-economy cohort with the Anglo American Foundation and a founder-focused track with E Squared Investments/Allan Gray Fellows. Funding partners have included the SA SME Fund and Deloitte, and the programme secured R25 million to continue through the COVID-19 disruption in 2020.

Results

Cohort 4 (10 companies) posted 36% collective revenue growth, R35 million in added revenue and 27 new jobs; Cohort 5 (10 companies) posted 54% revenue growth, R20 million+ in added revenue and 23 new jobs; a later cohort was reported at 88% average revenue growth and 52 new jobs over nine months. By 2022/23 the programme had scaled to 25 companies per intake across two cities, with 64% black-owned and 36% women-owned participating businesses.

Conclusions

Figures are self-reported by the programme and its funding partners rather than independently audited; no source discloses company survival or failure rates, so reported growth likely reflects self-selected or self-reported successes rather than a full-cohort audited outcome.

Implementation
Indicative cost
Medium (€50k–€500k)
Time to results
Medium (1–3 years)
Staffing & skills
Delivered jointly by Knife Capital (venture capital firm) and Thinkroom Consulting (SME market-access specialist)

Conditions for success

  • Strict eligibility criteria requiring paying customers and a revenue floor before entry, screening for already-viable businesses
  • Diversified funding across government (SA SME Fund), corporate (Deloitte, Anglo American Foundation) and investor (Allan Gray/E Squared) partners
  • Sector-specific tracks tailored to participant needs (green economy, founder-focused)

Common failure modes

  • No independent government or donor evaluation exists, and no survival/failure data is disclosed, so reported growth may reflect self-selected successes rather than full-cohort outcomes

Commonly funded by

Own resources / municipal budget

Indicative funding routes for practices of this type — always check each programme's current calls and eligibility rules.

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Data sources

Where this practice's information was retrieved from, and when.

Attachments

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