Onzo
Onzo (trading as geo / Green Energy Options) provides smart metering and the SeeZero customer engagement platform that helps UK energy retailers implement Time of Use tariffs, process MHHS settlement data, and coordinate household demand flexibility events.
- Company typePrivate
- Founded2007
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Onzo does
Onzo, trading as geo (Green Energy Options), is a UK-based smart metering and energy flexibility platform founded in 2007 and headquartered in Cambridge. The company has deployed more than 10 million devices in the field over a decade of operation, building a proprietary IoT connectivity layer and the SeeZero customer engagement platform. SeeZero supports Time of Use and dynamic tariff visualization, budget tracking, prepay capabilities, energy usage history, and gamified demand flexibility events, and is designed to help energy retailers navigate the UK's Mandatory Half-Hourly Settlement (MHHS) transition by processing actual 30-minute smart meter data for accurate billing and procurement.
The company sells primarily to UK energy retailers, with secondary segments including financial services, network operators, social housing providers, international markets, and technology/integration partners. Distribution is B2B direct sales supplemented by channel and reseller relationships for international expansion. The offering aligns with the NESO Clean Flexibility Roadmap targeting a 4-5x increase in behind-the-meter flex capacity by 2030, positioning Onzo/geo in a regulatory tailwind.
Onzo is private, with 11-50 employees, and has raised approximately $13.75 million in disclosed funding since 2008 from investors including West Coast Capital, Cipio Partners, SSE, Sigma Capital Group, Eneco group, and Innovate UK. The company holds ISO 9001, ISO 27001, and EcoVadis Silver (2025) certifications. No revenue, pricing, or named customer relationships are publicly disclosed, and there is no evidence of M&A activity, recent leadership change, or post-2017 funding events.
Onzo firmographics
Firmographics- Name
- Onzo
- Website
- https://onzo.com
- Company type
- Private
- Founded year
- 2007
- Headcount range
- 11–50 employees
- Short description
- Onzo (trading as geo / Green Energy Options) provides smart metering and the SeeZero customer engagement platform that helps UK energy retailers implement Time of Use tariffs, process MHHS settlement data, and coordinate household demand flexibility events.
- Ownership category
- akta.pro rank
Onzo industry classification
Industry- Product category
- Smart Metering and Energy Flexibility Software
- NAICS
- Custom Computer Programming Services (541511), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Customer Energy Engagement (In-Home Displays, Portals, Usage Insights) (EUADAFAH)
- akta.pro secondary industries
- Grid Data & Analytics Enablement (MDM, Data Integration, Hosting) (EUAEANAI), Prepay, Pay-As-You-Go & Credit-Constrained Retail Supply (EUAGABAG), Standards, Interoperability & Certification (DLMS/COSEM, ANSI C12, IEEE 2030.5) (EUADAFAO), Energy & Utilities in Manufacturing (Energy Management/Smart Metering) (IMAIAMAK)
Keywords
Where Onzo is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Onzo business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Distribution channels3 records
Marketing channels3 records
Onzo product offering
Product offeringCore offering
Onzo, trading as geo (Green Energy Options), sells a smart metering connectivity, energy flexibility, and customer engagement platform to energy retailers, network operators, social housing providers, financial services organizations, and international partners. The flagship product, SeeZero, is a customer experience platform that surfaces Time of Use and dynamic tariffs, budget tracking, prepay, energy history, and gamified participation in demand flexibility events, and supports Mandatory Half-Hourly Settlement (MHHS) by processing actual 30-minute smart meter data. The offering is built on more than 10 years of smart metering experience and learning from over 10 million devices deployed in the field.
Product overview
Onzo is mentioned in industry context as a company involved in the smart meter ecosystem. Government policies and sustainability initiatives are expected to drive 2.1 billion electricity smart meter connections globally by 2033. No specific product portfolio details are available in the source data.
Differentiator
Problem solved
Functional benefit
Products and services
- SeeZero Customer Engagement Platform A customer experience / engagement platform for energy retailers and other utility customers, designed to make Time of Use and dynamic pricing visible and easy to understand, support prepay and budget management, surface energy usage history, and drive household participation in demand flexibility events through clear education and intuitive gamification.
- Smart Meter Connectivity Services Smart metering and IoT connectivity services and expertise for energy retailers, network operators, and international smart meter operators, based on over 10 years of experience and more than 10 million devices deployed in the field.
- Energy Flexibility Services Demand flexibility services and tools that stimulate response and participation in flex events from households, enabling energy retailers and network operators to balance the grid and realise value from behind-the-meter assets at scale.
- Mandatory Half-Hourly Settlement (MHHS) Support System and services that process actual 30-minute smart meter data to support the MHHS transition, enabling more accurate billing and more efficient energy buying for energy retailers and replacing industry estimates.
Companies that use Onzo
Customer profileSegments6 records
Ideal customer profiles4 records
Onzo technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Onzo partnerships and signals
Strategic signalScale indicators4 records
Recent moves5 records
Expansion highlights5 records
Onzo competitors and assessment
Company assessmentBroad incumbents
- Voltus: US demand response aggregator supplying capacity into wholesale markets. Competes with Onzo's DFS module in concept, though focused on commercial/industrial rather than household assets.
- Enel X (formerly EnerNOC): Global demand response and energy management arm of Enel, offering enterprise and residential flexibility programmes. A much larger incumbent competing for the same DFS and customer engagement wallets.
Emerging players
- Reactive Technologies: UK-based grid flexibility and demand response company using smart meter data and connected assets to deliver balancing and capacity services. Comparable to Onzo on the flexibility / DFS side of the stack.
- Smappee: Provider of smart energy meters, gateways, and an energy management platform for residential and SMB customers. Overlaps with Onzo on hardware-and-software stacks targeting flexibility and energy insights.
- Bidgely: AI-driven energy disaggregation and customer engagement vendor used by global utilities. Competes with Onzo on appliance-level insights and personalised recommendations that drive flexibility and ToU uptake.
Regional players
- KEO International Consultants: Smart metering programme consultancy with Middle East and international smart meter rollout experience. Comparable on the connectivity and large-scale AMI deployment track record rather than the consumer engagement layer.
Others
- Geo (Green Energy Options): Trading identity of Onzo itself; the SeeZero customer engagement platform and the geotogether.com consumer brand are operated by the same corporate entity per the source data. Listed for completeness as the operating brand of the subject company.
Direct peers
- GreenCom Networks: European energy IoT and customer engagement platform offering white-label apps, ToU tariff visualisation, and demand response orchestration. Overlaps directly with SeeZero's flexibility and engagement modules for utilities across Europe.
- Uplight: US-headquartered customer energy engagement platform serving utilities with ToU, prepay, behavioural energy efficiency, and demand flexibility modules. Closest US analogue to SeeZero at significantly greater scale.
- Hildebrand Technology: UK-based provider of smart meter data analytics, consumer energy displays, and demand-side services to UK energy retailers. Directly comparable to Onzo/geo on geography, customer base (Big Six and challenger suppliers), and product scope (in-home displays, ToU, prepay).
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Onzo social profiles
Digital presenceOnzo financial estimates
Financial estimateRevenue estimate
Valuation estimate
Onzo leadership team
Management profileNumber of profiles
Profiles4 records
Onzo funding detail
Funding detailFunding overview
Funding rounds6 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Onzo M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Onzo
What does Onzo do?
Onzo, trading as geo (Green Energy Options), sells a smart metering connectivity, energy flexibility, and customer engagement platform to energy retailers, network operators, social housing providers, financial services organizations, and international partners. The flagship product, SeeZero, is a customer experience platform that surfaces Time of Use and dynamic tariffs, budget tracking, prepay, energy history, and gamified participation in demand flexibility events, and supports Mandatory Half-Hourly Settlement (MHHS) by processing actual 30-minute smart meter data. The offering is built on more than 10 years of smart metering experience and learning from over 10 million devices deployed in the field.
When was Onzo founded?
Onzo was founded in 2007. It employs 11 to 50 people.
Where is Onzo based?
Onzo is headquartered in London, United Kingdom, in the Europe region.
Who are Onzo's main competitors?
Broad incumbents on record are Voltus and Enel X (formerly EnerNOC). Emerging players are Reactive Technologies, Smappee and Bidgely. KEO International Consultants is listed as a regional player. Geo (Green Energy Options) is listed as an others. Direct peers are GreenCom Networks, Uplight and Hildebrand Technology.
Does Onzo have an API?
No public API is recorded for Onzo.
What industry is Onzo in?
Onzo's product category is Smart Metering and Energy Flexibility Software. Its primary akta.pro industry code is EUADAFAH, Customer Energy Engagement (In-Home Displays, Portals, Usage Insights), with a secondary code of EUAEANAI, Grid Data & Analytics Enablement (MDM, Data Integration, Hosting). Its NAICS code is 541511 and its SIC code is 7370.