This technical note implements a firm-level productivity diagnostic using the census of manufacturing firms and a large services survey in Kenya. By using a number of stylized productivity indicators, we aim to identify the ability of Kenyan firms to grow. The information presented in this diagnostic will help to conduct evidence-based policy-making. Specifically, implementing firm-level productivity diagnostics provide the necessary information for (i) improving the targeting of economic policies, (ii) enhancing their effectiveness, (iii) making more accurate predictions of the effects of industry shocks and policy reforms on the economy, and (iv) understanding the behavior of macroeconomic variables by tracking the evolution of variables at the firm-level. This note shows that there is a lot of heterogeneity in firms’ attributes and performance, and this can potentially be attributed to the presence of economic distortions that affect the efficient allocation of resources across firms, with the manufacturing sector showing a lackluster performance compared to the services sector. Overall, the findings highlight the importance of locating productivity at the center of the competitiveness agenda as a key instrument for employment creation and poverty reduction.