What is Lean Data?

Developed by Acumen, Lean Data makes it easy to understand social impact. We do it by talking directly to customers, by mobile or email, making data gathering fast and easy. With great questions, smart analysis, and impact benchmarks delivered in weeks, Lean Data will transform how you experience and use social impact data.

We’re published, informing global standards and winning awards.


How We Can Work Together


Make better investment decisions and manage impact across your portfolio.

Due Diligence

Put the customer perspective at the heart of due diligence.

Post Investment Support

Offer cutting-edge social performance measurement as a post investment service.

Portfolio Wide Analysis

Use our existing benchmarks or work with us to create your own.

Deep Dive

Focus on a specific impact question or portfolio company.

Social Enterprises

Get quick feedback or dig deep into what your customers are saying

Value Proposition

What is my customer value proposition? What is driving acquisition and retention?

Customer Profiles

What is the typical customer profile?

Social Performance

Am I having a social impact, and what outcomes are customers actually experiencing?

Opportunities for Growth

What improvements are customers crying out for?

Our Clients


What Our Clients Are Saying

Roy Steiner - Omidyar Network

Lean Data has allowed us to see comparable impact data across our portfolio for the first time.

Roy Steiner, Senior Director – Intellectual Capital, Omidyar Network

Martina Castro - CDC Group

Lean Data has provided actionable insights for our funds, and helped to build customer-centricity into our investees.

Martina Castro, Executive – Development Impact, CDC Group

Willem Nolens - SolarNow CEO

This data was a real eye-opener… I was shocked by how honest the answers were.

Willem Nolens, CEO, SolarNow


This is the most insightful report we have done with smallholders, period.

David Ellis, CEO, Ethiochicken

Gayathri Vasudevan - LabourNet CEO

The Lean Data exercise was an eye opener for LabourNet. We got great customer insights.

Gayathri Vasudevan, CEO, LabourNet

Ella Gudwin - VisionSpring President

We feel good about the positive results but even more excited about the things you pointed out that we can work on.

Ella Gudwin, President, VisionSpring