Financing Models and Startup Sustainability in Emerging African Economies: A Systematic Literature Review

Background: Access to sustainable financing remains one of the most critical impediments to startup survival and growth across emerging African economies. Despite the strategic importance of startups to employment creation, innovation, and structural economic transformation across the continent, the scholarly literature remains fragmented regarding which financing models most effectively support long-term startup sustainability. The annual financing gap for micro, small, and medium enterprises in Sub-Saharan Africa is estimated to exceed USD 630 billion, and traditional bank lending has proven largely inaccessible to early-stage ventures owing to collateral requirements, information asymmetries, and underdeveloped credit infrastructure.
Objective: This systematic literature review (SLR) synthesizes empirical and theoretical evidence on four distinct financing models: (Hybrid Financing Models (pairing Debt and equity, Venture Capital and banking (VC/B) and equity crowdfunding (ECF) to evaluate their relative effectiveness in supporting startup survival, profitability, innovation, scalability, and long-term sustainability in African and comparable emerging-market contexts. The review further explores the conditions under which each model is most appropriate and identifies gaps warranting further primary research
Method: Following the PRISMA 2020 guidelines, a structured search was conducted across eight major academic databases: Scopus, Web of Science, Springer, Taylor & Francis, ScienceDirect, Emerald, Wiley Online Library, and Google Scholar. Studies published between 2017 and 2026 were screened using a pre-defined PICOS-based inclusion and exclusion framework. A total of 35 peer-reviewed studies were retained for thematic synthesis following title, abstract, and full text screening.
Results: No single financing model emerged as universally superior. Effectiveness is strongly moderated by startup lifecycle stage, institutional environment, and founder human capital. Venture capital demonstrates the strongest performance impact on profitability, innovation, and scalability, but is systemically distorted by homophily bias that disadvantages African-led startups. Bank financing provides the most stable platform for survival and sustainability in the consolidation phase but structurally excludes early-stage ventures. Hybrid models particularly DFI private co-investment structures and equity-for-guarantee instruments offer the most adaptable architecture for bridging financing gaps across startup lifecycle stages. Equity crowdfunding remains constrained by limited digital infrastructure, low investor sophistication, and the absence of enabling regulatory frameworks across most African markets.
Conclusion: The evidence supports a sequenced, lifecycle-sensitive financing approach: hybrid instruments in the early stage, transitioning to VC-backed configurations in the growth phase, and consolidating through bank financing at maturity. Realizing this pathway requires coordinated policy action to strengthen institutional quality and guarantee mechanisms, investor commitment to reducing bias and expanding co-investment mandates, and ecosystem-level integration of financial literacy support. The review’s central contribution is diagnostic as much as prescriptive: the field agrees on cause information asymmetry but is largely silent on combination, unable to explain how African entrepreneurs actually choose, combine and transition between financing models over a venture’s lifetime. Future research should prioritize longitudinal African cohort studies, sector-specific comparative analyses, and investigation of the behavioural determinants of financing model choice.

Startup financing; entrepreneurial finance; funding models; financing constraints; startup sustainability; Sub-Saharan Africa

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