DOB Equity has invested in Irrisol Engineering, a Ugandan water infrastructure company that designs, builds and operates solar powered water systems for rural and peri-urban communities.
The investment amount was not disclosed, but the capital will support Irrisol’s operational expansion and the rollout of more community water mini-grids across Uganda, including plans to extend into the Rwenzori region and beyond.
The DOB Equity Irrisol Uganda Water Investment
The DOB Equity Irrisol Uganda water deal brings together a Dutch family backed impact investor with a locally founded engineering company built by someone who lived the problem he set out to solve.
Irrisol was founded in 2017 by water and irrigation engineer Joash Bwambale and operates across Western Uganda, delivering water directly to households and community taps.
Cikü Mugambi, Investment Director at DOB Equity, said Joash represents exactly the type of founder the firm backs, a local entrepreneur solving a problem he lived himself, and pointed to the difficulty of balancing commercial returns with genuine impact as something Irrisol has managed to crack through its combination of water mini-grids, standalone systems and pay-as-you-go pricing.
DOB Equity is an independent, long term investor focused on East Africa, backed by an entrepreneurial Dutch family with a background in developing retail concepts, and it invests across sectors including sustainable food systems, renewable energy and water and sanitation services.
The firm works from offices in Kenya, Tanzania and the Netherlands, and this deal extends its portfolio further into Uganda’s water infrastructure sector.
How Solar Water Mini-Grid Uganda Systems Work
Irrisol’s solar water mini-grid Uganda model pairs solar powered pumps with consumption based billing and mobile money payments, an approach designed to make water access both more reliable and more financially sustainable than many rural systems have historically managed.
Rather than relying on flat fees or donor subsidized upkeep, customers pay according to actual usage, giving Irrisol a recurring revenue stream it can reinvest into maintenance and expansion.
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Beyond its mini-grid network, Irrisol also designs and installs standalone solar water systems for schools, hospitals, businesses and households, giving the company a mix of contracted installation work and utility style recurring revenue that provides a commercial base as it scales.
Why Rural Water Infrastructure Uganda Investment Is Overdue
Rural water infrastructure Uganda investment has lagged behind need for years. Access to safe and reliable water remains a significant challenge across the country, particularly in rural communities where many households still rely on distant water sources that consume hours of time and limit other economic activity, especially for women and children who typically bear the burden of water collection.
The deeper problem is not just initial access but durability. Many existing rural water systems in Uganda struggle with long term functionality due to inadequate maintenance, poor infrastructure design and limited sustainable financing models, meaning boreholes and pumps installed with good intentions often fall into disrepair within a few years once initial funding runs out.
Irrisol’s model directly targets that failure mode. By embedding consumption based billing and mobile money collection into its systems from the start, the company creates a built in maintenance fund tied to actual usage, rather than depending on community committees or external grants to cover repairs after something breaks.
Irrisol Engineering DOB Equity 2026 and the Bigger Picture
The Irrisol Engineering DOB Equity 2026 deal arrives against a backdrop where more than 400 million Africans still lack access to safe drinking water.
Mugambi said DOB Equity is proud to support Bwambale with capital and hands on partnership as he takes the mini-grid model across Uganda and beyond, a statement that signals ambitions extending past the company’s current Western Uganda footprint.
Bwambale himself framed the mission in similarly expansive terms, saying access to reliable water should not depend on where someone lives or how much they earn, positioning Irrisol’s pay-as-you-go model as central to making that principle a practical reality rather than an aspiration.
What Comes Next
With DOB Equity’s backing, Irrisol is positioned to extend its mini-grid network into the Rwenzori region and other parts of Uganda, testing whether its blended model of contracted installations and recurring, usage based revenue can scale beyond its current base while maintaining the financial sustainability that has eluded many rural water projects before it.
If the model proves replicable, it could offer a template not just for expansion within Uganda but for similar water access challenges across East Africa, where the combination of solar power, mobile money and consumption based billing is increasingly being applied to infrastructure gaps that traditional grant funded approaches have struggled to close for good.
