If you’re looking for North America’s leading wastewater and cleantech experts, you’ve come to the right place.

We’re an experienced technical execution, regulatory compliance, and industrial & commercial advisory firm. Our highly experienced consultants work with manufacturers, farmers, end users, wastewater & cleantech companies, investors, and other consultancies. We seamlessly deliver advanced technical know-how, risk mitigation, cost reduction as well as both increased profitability and ROI.

What we doGet in Touch

What We Do

Regulatory Compliance & CSR
Risk Management/ Due Diligence
Test Plan / Data / 3rd Party Reviews

Process & Energy Optimization
Technology & Equipment Selection
Technology Validation Studies

Technical Execution
Data & Market Insight
Cost Saving Methods

Digester Foaming Problems?

In the past 20 years we have advised and overseen

more than 300 projects in North & South America, Europe & Africa.

How We Do It


Project Management




Customized Training


Clients benefit from the unrivalled depth of knowledge

and extensive practical commercial experience of our seasoned professional team.

Managing Director

  • David Ellis, the Managing Director and Principal Consultant of Azura Associates, has spent almost a quarter of a century getting his ‘boots dirty’ throughout the wastewater and cleantech sectors.
  • As a published author and expert involved in over 300 projects on 4 continents to date, David is quite rightly recognised as one of North America’s premier wastewater & cleantech practitioners.
  • A systems designer & chemical engineer, David is passionate about how wastewater & cleantech enhances businesses, improves the lives of communities & helps protect the environment.
  • David is focused on the need to deliver practical, well-defined, and measurable real-world solutions within budget and on time to the wide variety of clients that he proudly trains, advises, and leads.

Why You Should Be Talking To Us


We have a uniquely integrated way of thinking borne
out of insight gained over many years of hands-on experience:

Technical Expertise plus Customized Services allied to Commercial Sensitivity =
Highly Effective Outcomes


We Work With Exceptional Clients

Here’s a selection of some of the companies that our team have worked with:



We’re ready to help you too.
As such, please don’t be intimidated by technical jargon.

As a client-centric firm, we are professional, approachable and use plain English.
Even if you’re not sure about exactly what you need, please contact us.
We’ve carved out a reputation as a progressive, can do firm.
We’re here to help you to achieve your goals.


tick2Technical Expertise

tick2Very Collaborative

tick2Creative Solutions

tick2Focused On Results

tick2Clients First Policy

tick2No Obligation Chat

Our consultants travel to client locations
throughout Canada and the US as well as overseas.

All client communication is treated in the strictest of confidence.