Grenex

What Grenex does

Grenex (Pty) Ltd is a Pretoria-headquartered sustainability solutions provider founded in 2013, operating as a Level 1 BBBEE contributor. The company serves industrial, commercial, public sector, and increasingly residential clients across South Africa with an integrated portfolio covering energy management (audits, IPMVP/SANS 50010-compliant monitoring, tariff and load-shifting analysis), water management (audits, groundwater modelling, geotechnical services, contaminated site management), and carbon management (Scope 1-3 accounting, tax liability quantification, and compliance reporting). Turnkey engineering, procurement, and construction (EPC) capability is delivered in solar PV installations, lithium-ion battery backup/UPS systems, and solar-powered borehole water-pumping infrastructure for mining, education, community, and government end-users.

The business model is a hybrid of professional services consulting (audits, feasibility studies, compliance advisory) and one-time EPC project implementation with associated post-implementation maintenance and monitoring, generating project-based and selectively recurring revenue. Go-to-market is sales-led and consultative, with direct outreach, contact forms, a 'Book A Call' website CTA, and project referrals sourced through strategic partners (LTM Energy for solar; MWEM for hydrology; Oelinga for SANAS-accredited M&V and EPC; Pacific for renewable energy; Solid Green for green building design). Pricing is custom per engagement and not publicly disclosed.

At 11-50 employees with a single Pretoria head office and a small set of named enterprise and government customers (NMISA, United Manganese of Kalahari, Frankfort community, Ethembini Junior Secondary School, Silverlakes residents), Grenex is a boutique firm whose scale is leveraged primarily through its partner ecosystem rather than internal headcount.

Name

Grenex

Legal name

Grenex (Pty) Ltd

Website

https://grenex.co.za

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Grenex (Pty) Ltd is a Pretoria-based, Level 1 BBBEE sustainability solutions provider delivering energy, water, and carbon management consulting and turnkey EPC implementation for industrial, commercial, public sector, and residential clients across South Africa.

Ownership category

akta.pro rank

Headquarters

HQ city

Pretoria

HQ country

South Africa

HQ region

Africa

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Supply Chain, Others

Revenue model

1. Energy Management Consulting: Consulting services including energy audits, bill analysis, baseline development, tariff optimization, load shifting analysis, and feasibility studies with financial projections. Services are likely project-based or retainer engagements.
2. Water Management Consulting and Implementation: Water management services including audits, studies, geotechnical services, and turnkey implementation. Provided in partnership with MWEM (Pty) Limited.
3. Carbon Tax Consulting and Reporting: Carbon management consulting services including Scope 1, 2 and 3 emissions accounting, tax liability quantification, compliance reporting, and long-term planning.
4. Turnkey Project Implementation: Engineering, Procurement and Construction (EPC) services for solar PV installations, battery backup systems, and water pumping infrastructure. One-time project revenue from installation and commissioning.
5. Post-Implementation Support and Maintenance: Ongoing maintenance and support services for installed systems including monitoring and reporting.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Grenex (Pty) Ltd provides energy, water, and carbon management consulting plus turnkey Engineering, Procurement and Construction (EPC) implementation for industrial, commercial, mining, public sector, and residential clients in South Africa. Service lines include energy audits and bill analysis, water audits, groundwater and geotechnical studies, carbon tax and Scope 1/2/3 emissions advisory, and physical installations such as solar PV arrays, battery backup/UPS systems, and solar-powered borehole water pumping systems. Project delivery is supported by partnerships with LTM Energy, Oelinga (SANAS-accredited M&V/EPC), and MWEM (hydrology).

Product overview

Grenex (Pty) Ltd is a sustainability solutions provider offering an integrated portfolio of energy, water, and carbon management services for industrial and commercial clients. The core offering comprises Energy Management Consulting (energy audits, bill analysis, load management), Energy Consumption Monitoring and Reporting (metering, IPMVP-compliant savings calculations), and Energy Saving Interventions (solar PV, UPS, lighting installations). Water Management services include Consulting (audits, feasibility studies), Water Studies (groundwater modelling, geochemical assessments), and Geotechnical Services (borehole drilling, testing). Carbon Management Consulting covers Scope 1, 2, and 3 carbon accounting and tax liability assessment. Turnkey project offerings include Residential Solar PV Systems (Sunsynk-based), Commercial Solar Powered Borehole Pumping Systems, and Battery Backup/UPS Systems. All services are delivered through strategic partnerships with specialized firms including MWEM for hydrology, LTM Energy for solar, and Oeling for SANAS-accredited M&V.

Differentiator

Problem solved

Functional benefit

Products and services

• Energy Management Consulting Consulting service providing energy bill analysis, energy audits, energy baseline development, identification of major energy-consuming equipment, tariff analysis, load shifting analysis, and pre-feasibility studies with financial projections (IRR, NPV, payback, LCOE). Targeted at industrial, commercial, and public sector clients seeking to reduce energy costs and improve efficiency.
• Water Management Consulting Water consulting covering audits, bill analysis for consumption and sewerage charges, meter readings with discrepancy identification, and feasibility studies for municipal infrastructure including pipelines, reservoirs, and water treatment plants. Delivered in partnership with MWEM (Pty) Limited for hydrology expertise.
• Carbon Management Consulting Carbon accounting across Scope 1, 2, and 3 emissions; quantification of carbon tax liability and risk exposure; data collection and analysis on energy and waste use; year-over-year trend analysis; emissions drivers identification; facility/region-based emissions analysis; renewable energy purchase evaluation; and progress tracking toward sustainability goals.
• Solar Powered Borehole Water Pumping Systems Design, installation, commissioning, and maintenance of solar-powered borehole pumping systems (e.g., 12 kWp solar arrays powering submersible pumps) for water supply to communities, schools, and mining operations. Includes water storage tanks, lighting, and plug connections.
• Battery Backup and UPS Systems Design and installation of backup UPS systems ranging from 10 kW single-phase (up to 8 hours backup) to 64 kW three-phase configurations with lithium-ion batteries, for industrial and commercial applications such as refrigeration and calibration equipment during load shedding.
• Residential Solar PV System Installation Complete residential solar energy solution typically including 10 x 550 W high-efficiency solar PV panels, an 8 kW Sunsynk inverter, and a 10 kW 200AH Sunsynk battery, designed to counter load shedding and provide backup power for homeowners.

Quantifiable outcome

• Battery backup systems provide up to 8 hours of power during load shedding
• +2 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• LTM Energy Pty LtdcoreImplementation/ SI/ Consulting Partner · 1 January 2023Project partner on United Manganese of Kalahari Mine - Design, installation, commissioning and maintenance of solar powered borehole water pumping system.
• University of JohannesburgminorStrategic or Co-development Partner · 1 January 2023CSI partner. Grenex donated digital writing pads to the Department of Electrical and Electronic Engineering Technology in support of hybrid learning, with training and educational video creation planned.
• Upstream Systems South AfricaminorStrategic or Co-development Partner · 1 January 2023CSI partner. Collaborated on donation of digital writing pads to Jafta Mahlangu Secondary School in support of hybrid learning transition.
• Difference Approach Pty LtdcoreImplementation/ SI/ Consulting Partner · 1 January 2020Project partner on National Metrology Institution of South Africa (NMISA) battery backup system installation, completed September 2020 - April 2021.
• LTM Energy Pty LtdcoreStrategic or Co-development PartnerManaged Energy Solutions Partner. Collaborated on United Manganese of Kalahari Mine solar powered borehole project (2023). LTM Energy provides energy solutions expertise supporting Grenex's solar installations.
• OelingacoreTechnology or IntegrationSANAS Accredited M&V (Measurement and Verification) and EPC Partner. Provides accredited measurement and verification services for energy savings, and EPC capabilities for Grenex projects.
• MWEM (Pty) LimitedcoreStrategic or Co-development PartnerHydrology & Water Projects Partner. MWEM provides highly experienced professionals including hydrogeologists, chemistry specialists, water modelers, engineers, contaminated site specialists, and hydrologists for water management solutions.
• PacificminorStrategic or Co-development PartnerRenewable Energy Projects Partner. Collaborates on renewable energy project development and implementation.
• Solid GreenminorStrategic or Co-development PartnerGreen Building Design Partner. Provides expertise in sustainable building design to complement Grenex's energy and water management services.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Market position

Weaknesses5 records

Competitive moat3 records

Customer concentration

• Xtwitter.com/GrenexPtyLtd
• Facebookfacebook.com/grenexconsultant
• LinkedInlinkedin.com/company/grenex-consulting
• Instagraminstagram.com/grenex.pty.ltd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Grenex