Scaling WASH enterprise and innovation

From idea to lasting WASH impact.

Practical support that turns WASH ideas into stronger enterprises and better outcomes.

Kisumu, Kenya · East Africa

Practical WASH solutions, shaped by real markets

Opero is a Kenyan engineering, business development and market research firm specializing in scaling water, sanitation and hygiene technologies and enterprises.

We work from ideation to commercialization, helping teams understand their markets, test practical technologies, strengthen business models and build solutions that can grow.

Meet the team
Members of the Opero team

What we do

Three linked disciplines that move WASH solutions from field testing toward lasting service delivery.

01

Enterprise growth

Tailored acceleration, strategic support and investment readiness for WASH businesses.

02

Market intelligence

Research and analytics that turn local market realities into confident decisions.

03

Technology innovation

Design, testing and commercialization support for practical sanitation technologies.

Proven impact

Field-tested solutions and supported enterprises delivering cleaner, more reliable sanitation services.

  • 6WASH technologies designed, tested and improved
  • 1WASH technology commercialized
  • 35WASH enterprises in tailored accelerator programmes
  • $3M+Raised for WASH enterprises in Kenya

WASH Enterprise

Coaching, incubation and investment support that moves WASH businesses from idea to scale.

  • $750,000Investment in WASH businesses
  • 29WASH enterprises trained and accelerated
  • 3Business accelerator programmes designed and delivered

WASH Technology

Installing, testing and rating sanitation technologies against technical, financial and usability KPIs.

  • 15WASH technologies installed
  • 5WASH technologies tested in Kenya
  • 1WASH technology rating framework developed

Sustainable development

Opero’s work advances clean water and sanitation, decent work, and partnerships across the development ecosystem.

Sustainable Development Goal 6

Expand access to clean water, safe sanitation and hygiene services.

Sustainable Development Goal 8

Help WASH enterprises create dignified work and sustainable growth.

Sustainable Development Goal 17

Build partnerships that connect local expertise with shared action.

Selected work

Technologies, service models and training programmes developed with operators, enterprises and implementation partners.

Illustration of the PuPu Pump emptying a latrine across a dense settlement
Pit-emptying technology

PuPu Pump

Up to 3,000 L in 20–30 minutes

A portable push-pull sanitation pump that helps service providers empty hard-to-reach pit latrines more safely and efficiently.

  • Portable design for dense and hard-to-reach areas
  • Moves sludge through closed hoses into a storage tank
  • Field-tested with East African service providers
Learn more about PuPu Pump
Saniforce fecal sludge treatment installation
Humanitarian sanitation

Saniforce Fecal Sludge Treatment Unit

115 m³ treated during the Kisumu pilot

A self-sustaining treatment unit combining anaerobic digestion and thermal disinfection for humanitarian and decentralized settings.

  • Biogas-powered thermal disinfection
  • Designed for infrastructure-constrained settings
  • Piloted at the Kisumu WASH Technology Hub
Learn more about Saniforce FSTU
Complete Vetiver Green Latrine pilot installationEstablished vetiver treatment bed beside a latrineTwin-barrel treatment system during installation
Nature-based sanitation

Vetiver Green Latrine

Published pilot construction cost: USD 185

A cost-conscious sanitation system using a sealed pan, barrel-based containment and vetiver grass to help treat effluent.

  • Designed for rural and peri-urban settings
  • Reduces reliance on conventional septic infrastructure
  • Developed from the Santech Hackathon
Learn more about Vetiver Latrine
DungBeetle digester laid out during field installation
Circular sanitation

DungBeetle Anaerobic Digesters

116+ active reactors in partner programmes

Modular anaerobic digesters adapted for sanitation, producing useful biogas while treating waste for households and institutions.

  • Prefabricated and modular
  • Supports decentralized treatment
  • Creates clean energy through biogas
Learn more about DungBeetle
Diagram comparing conventional sanitation transport with the Honey Dipper processExterior of a Honey Dipper field installationInterior of a Honey Dipper field installation
Waterless sanitation

Honey Dipper

100% on-site treatment concept

A waterless toilet concept designed to dehydrate and treat waste on site, reducing dependence on sewer and transport infrastructure.

  • No water required for operation
  • On-site treatment and collection
  • Designed for water-constrained communities
Learn more about Honey Dipper
Opero pit-emptying training session
Skills and service delivery

Sanitation Training

3 pit-emptying technologies covered

Hands-on pit-emptying training at the Kisumu WASH Technology Hub using the PuPu Pump, Gulper and PitVaq.

  • Practical equipment training
  • Safety, dignity and service-quality focus
  • For sanitation operators and service providers
Learn more about Sanitation Training

From the field

Watch how practical sanitation innovations are tested and applied with operators on the ground.

Our team

A multidisciplinary group solving practical WASH challenges together.

  • Portrait of Nicola Greene

    Nicola Greene

    Director

  • Portrait of Edwin Mariita

    Edwin Mariita

    Technical & Engineering

  • Portrait of Victoria Aluko

    Victoria Aluko

    HR & Finance

  • Portrait of Collins Oluoch

    Collins Oluoch

    Monitoring & Evaluation

  • Portrait of Aggrey Ochieng

    Aggrey Ochieng

    Operations

  • Portrait of Olivia Kyule

    Olivia Kyule

    Finance

  • Portrait of Sarah Akello

    Sarah Akello

    Projects & Technical Advisory

  • Portrait of Anita Onyango

    Anita Onyango

    Communications

  • Portrait of Wycliffe Odongo

    Wycliffe Odongo

    Technician

  • Portrait of Lisa Ngowe

    Lisa Ngowe

    Administration & Finance

Field notes, evidence and practical learning.

Explore project updates, case studies, newsletters and field insights.

Portfolio

Opero Project Portfolio

A 22-page overview of Opero's WASH enterprise, innovation and market-research programmes across East Africa.

Download
Digest

PuPu Pump Digest: Tackling Trash

Practical lessons on trash, thick sludge and equipment care during pit-latrine emptying.

Read more
Newsletter

January 2025 Update

A recap of Opero's late-2024 work across humanitarian treatment, green sanitation, enterprise support and PuPu Pump commercialization.

Read more

Working together

Opero has worked alongside funders, technical partners and distribution networks across East Africa and beyond.

Practica FoundationSistema.bioETH ZürichVeolia FoundationWorld Food ProgrammeUganda Red Cross SocietyWestern Kenya Sanitation ProjectFactor EKIWASCODAIFresh LifePartners In DevelopmentWASEUUSAIDBill & Melinda Gates FoundationPractical ActionPace Able FoundationSanergyStone Family FoundationGasia PoaUNICEFPSISanitation Innovation FundWorld BankWSUPFinish MondialSanivationcewasWater For People

Get in touch

Have a project or partnership in mind? Send us a message.