Hi, I'm James. When I founded Sirus in 1988, we focused on........................

HI, I'm James. When I founded Sirus in 1988, we focused on developing Building Management systems that reduce energy waste and improve a healthy work environment. Nearly 40 years later, the pressure to demonstrate how well your buildings perform has only increased.

Decarbonisation is non-negotiable. Ensure it becomes a strategic business advantage, not a risk for your investors. Low-energy buildings are more financially beneficial to tenants and owners, and they help organisations to meet their decarbonisation goals.

Achieving net-zero carbon is only possible if you understand how your buildings perform. The right balance between generation and performance is essential to set and reach targets. But there's a little more to it...

Our mission is to empower sustainability leaders to drive their organisations toward net-zero—helping them plan ambitiously, track progress with confidence, and report their impact with clarity every step of the way.

READ THE LETTER FROM OUR CEO >

Our operating principles

Sustainability data is as valuable as its accuracy

Trust and relationships are everything in business. The accuracy and reliability of your energy and emissions data are fundamental to the sustainability stories you tell and the relationships you build with your stakeholders. We understand that and take our role in it very seriously.

Slow down and use what you have

When others are racing for a havana of big data and AI, we’re saying stop, slow down and first use what you have. Let your current data tell its story before you spend all your time and resources chasing more data without a clear understanding of what value it will deliver.

We don’t do anything...

You do. We’ll bring the shovels and show you where to dig, but you are the hero in this journey. We focus on building the best tools possible to support you in planning, tracking and achieving your sustainability goals.

Driving down emissions isn’t rocket science

The challenges are well understood, and the solutions are backed by clear, well-documented guidelines, directives, and standards.You don’t need more opinions— you need tools that apply these frameworks effectively. We ensure our tools align with the latest guidance and standards so you can stay compliant.

Our partners

We believe that great results come from working together. That’s why we partner with experts to bring even more value. Teaming up with trusted specialists leads to smarter insights, smoother processes, and faster results—so you can focus on what matters most.

CONSULTANTS

Optien

Optien helps businesses reduce energy costs, enhance efficiency, and achieve sustainability goals through tailored energy management systems, carbon reduction strategies, and ISO50001 compliance. Their data-driven approach enables effective decarbonisation, ensuring clients meet both regulatory and environmental targets.

Novocertus

Novocertus offers energy awareness and forensic services, helping businesses optimise energy usage, reduce costs, and achieve sustainability goals. Their services range from simple energy assessments to in-depth analyses, ensuring informed decisions and actionable improvements for both small and large energy users.

DATA ACQUISITION

Wattsense

Wattsense provides a secure, open-protocol IoT solution for data acquisition, enabling seamless integration across diverse systems. Its data logger and cloud platform support multiple communication protocols, ensuring seamless integration, efficient data exchange, and robust security for remote monitoring and control.

Glas

Glas delivers flexible, open-protocol data logging systems for energy, environmental, and IoT sensor monitoring, providing custom solutions across industries. Their expertise in meter operation and data communication ensures only reliable, validated information is surfaced for better decision-making and operational efficiency.

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