Better evidence for
better decisions

Providing rigorous analytical services that are academically sound and yet practical. Limestone’s vision is to increase the impact from every dollar spent. We plan to approach this vision by expanding the use of economic tools in decision-making.

Trusted by national and local governments, and international NGOs, Limestone is known for rigour, innovation, and the quality of its work.

Core Capabilities

Economic Analysis

Globally leading the theory and application of cost-benefit and cost-effectiveness analysis (CBA and CEA) in the appraisal of social programs, infrastructure investment projects, and public policy.

Financial Analysis

Unique capabilities in the development of integrated models for the analysis of partnership models: from public-private partnerships to blended finance and results-based financing.

Impact & Performance Evaluation

Established experience and skills in using mixed methods for “best-fit” evaluation of impact, performance, and institutions: from large-scale randomized controlled trials to

Research Services

Proven track record in research, publication, and event organizations in economic research, private sector engagement, forecasting and scenario planning.

Course Development & Training

Decades of experience in the development and delivery of advanced online and residential professional training programs for organizations, professional bodies, and academia.

Institutional Support Services

Supporting institutions by developing guidelines, on-site training, management and strategy support.

Select recent projects

Through research and innovation,
we have applied our services for the analysis of

  • Public Investments,
  • Policy Reform,
  • Project Design and Performance,
  • Public-Private Partnerships,
  • Results-Based Financing, and
  • Impact Investing.

Our diverse skill set allows us to take a holistic approach to analytics irrespective of the sector of the intervention or the nature of the impact. Our portfolio includes analytical services across the following thematic areas:

Responsible Economic Growth

Financial Inclusion




Private Sector Development


Water & Sanitation


Inclusive Human & Social Development




Gender & Social Inclusion

Youth Employment

Notable Innovations

  • Development of the Short-Term Under-capacity Dynamic Input-Output
    (STUDIO) model for the regional analysis of economy-wide shocks
  • Creation of the Unified Cost-Benefit Analysis (UCBA) framework for formalizing the process of developing and documenting economic analysis models
  • Using Machine Learning (ML) to conduct quantitative analysis on qualitative data
  • Development of web-based dashboards to communicate complex analytical processes with policy makers
  • Co-creating the formal processes for bridging the gap between economic anlaysis and evaluation at an institutional level
  • Use of integrated probablistic models for the analysis of blended financing arrangements and results-based financing models
  • Development of the curriculum and training material for the Certified Professional Impact Analyst (CPIA) certification
  • Integration of gender and ecosystem service values into economic analysis