Company lists · Data refreshed September 2026

Top 25 Hvac software development companies based in South Africa

Name: Hvac software development companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 82 companies tracked

RevenueBase identified 82 hvac software development companies headquartered in South Africa as of September 2026 and tracks 661 professional contacts across them, including 107 with verified work emails and 14 with mobile numbers. Johannesburg is the largest hub.

This list covers hvac software development companies headquartered in South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

82Companies

661Contacts tracked

107Verified emails

14Mobile numbers

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The 25 largest hvac software development companies based in South Africa

Ranked by team size

Top 25 of 82 hvac software development companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hvac software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	TOACIndirect evidence	Montague Gardens, South AfricaHQ checked Sep 3, 2026	11-50	67
	“Since our establishment over two decades ago, TOAC has evolved into a fully fledged national ventilation, air-conditioning and refrigeration solutions provider.” Source: company website · checked Sep 3, 2026
2	Trox South Africa PTY LTDPartial evidence	Isando, South AfricaHQ checked Sep 3, 2026	51-200	47
	“TROX is a global leader in the development, production and sale of components, units and systems for the ventilation and air conditioning of rooms.” Source: company website · checked Sep 3, 2026
3	ITD Group, South AfricaPartial evidence	Port Elizabeth, South AfricaHQ checked Sep 3, 2026	51-200	47
	“ITD Group is a multi-discipline solutions provider consisting of various companies that provide solutions to the built environment in HVAC, energy, electronic services and Johnson…” Source: company website · checked Sep 3, 2026
4	Southern AIR Conditioning PTY LTDIndirect evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	51-200	40
	“Southern Air Conditioning (SAC) was established in 1971.” Source: company website · checked Sep 3, 2026
5	ECO AireIndirect evidence	Boksburg, South AfricaHQ checked Sep 3, 2026	11-50	16
	“Eco Aire Pty Ltd was founded in 1997 and has grown into a market leader in the Air Conditioning Industry to such an extent that Eco Aire is literally EVERYWHERE in South Africa.” Source: company website · checked Sep 3, 2026
6	Automated Control SolutionsIndirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	16
	“Automated Control Solutions (ACS) are leading suppliers of building automation products and specialise in the sales and marketing of Honeywell, Alerton and Tridium home and…” Source: company website · checked Sep 3, 2026
7	Cape Automation SystemsPartial evidence	Mowbray, South AfricaHQ checked Sep 3, 2026	11-50	13
	“Cape Automation Systems is a Building Management System (BMS), Energy Management System, HVAC controls and services provider” Source: company website · checked Sep 3, 2026
8	Stiebel Eltron Southern AfricaIndirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1,001-5,000	13
	“STIEBEL ELTRON, founded in 1924, is one of the leading companies in the market for building services and renewable energies.” Source: company website · checked Sep 3, 2026
9	ALL OUT GroupPartial evidence	Sandton, South AfricaHQ checked Sep 3, 2026	11-50	11
	“Your building’s HVAC system does more than keep temperatures consistent.” Source: company website · checked Sep 3, 2026
10	Roux AirconditioningIndirect evidence	Durban, South AfricaHQ checked Sep 3, 2026	11-50	11
	“Too hot, too cold, too uncomfortable?” Source: company website · checked Sep 3, 2026
11	Airotech SAIndirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	10
	“Welcome to Airotech!” Source: company website · checked Sep 3, 2026
12	Zuid Hvac & Process EngineeringIndirect evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	11-50	8
	“ZUID provides services to the Commercial & Industrial market in the following fields.” Source: company website · checked Sep 3, 2026
13	Climatron ProjectsPartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	51-200	7
	“Climatron is a reputable HVAC Engineering & Design Firm We are well know for our unmatched capability in the following areas: Energy Audits \| Duct Manufacturing \| Project…” Source: company website · checked Sep 3, 2026
14	AirclimaIndirect evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	51-200	7
	“Airclima (Pty) Ltd is an industry-leading air conditioning contractor with 29 years of expertise.” Source: company website · checked Sep 3, 2026
15	Graeme Page Consulting Engineers GpcePartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	6
	“Graeme Page Consulting Engineers (GPCE) is a Johannesburg based firm of specialist heating, ventilation and air-conditioning (HVAC) Consulting Design Engineers, servicing the…” Source: company website · checked Sep 3, 2026
16	Aersa GroupIndirect evidence	Bellville, South AfricaHQ checked Sep 3, 2026	51-200	5
	“Leading Provider of Heating, Ventilation & Air Conditioning Solutions for Industry & Commercial Enterprises.” Source: company website · checked Sep 3, 2026
17	Scansoft TechnologiesPartial evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	1-10	4
	“Welcome to Scansoft Technologies."The home of software solutions, ideas and innovation" for smart buildings.” Source: company website · checked Sep 3, 2026
18	SA Heating & CoolingIndirect evidence	Gauteng, South AfricaHQ checked Sep 3, 2026	11-50	3
	“SA Heating and Cooling provides integrated, engineered, energy efficient climate control solutions to ensure your building's efficiency is optimised.” Source: company website · checked Sep 3, 2026
19	Seeley International SAFPartial evidence	South AfricaHQ checked Sep 3, 2026	11-50	3
	“Seeley International is a global leader in developing innovative HVAC equipment, ranging from the world-leading, hyper-efficient cooling solution, the Climate Wizard, to a…” Source: company website · checked Sep 3, 2026
20	Pictech PTY LTDPartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	3
	“Pictech is a company that has been established since 1986 and is situated in Johannesburg, we represent some of the major brands in HVAC and tech industry.” Source: company website · checked Sep 3, 2026
21	Vuma SoftwarePartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	2
	“VUMA Software has developed a ground-breaking suite of products that is used for the interactive simulation of steady-state environmental conditions encountered in underground…” Source: company website · checked Sep 3, 2026
22	HIAIRPartial evidence	Alberton, South AfricaHQ checked Sep 3, 2026	11-50	1
	“HiAir is an HVAC supplier of air handling units, chillers, fan coil units and rooftop packaged units.” Source: company website · checked Sep 3, 2026
23	interactive.ioIndirect evidence	Durban Kzn, South AfricaHQ checked Sep 3, 2026	1-10	1
	“Interactive solutions for industrial automation applications and highly serviced buildings.” Source: company website · checked Sep 3, 2026
24	KNX LogicIndirect evidence	Bedfordview, South AfricaHQ checked Sep 3, 2026	1-10	1
	“Specializing in building automation and system integrations.” Source: company website · checked Sep 3, 2026
25	MCS Chilled WaterIndirect evidence	Milnerton, South AfricaHQ checked Sep 3, 2026	1-10	1
	Source: company website · checked Sep 3, 2026

Showing 25 of 82 hvac software development companies based in South Africa

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Hvac software development companies based in South Africa at a glance

As of Sep 3, 2026

11-50Median size (employees)

JohannesburgLargest hub · 16 HQs

14Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

31–60

61–90

90–180

180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hvac software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in South Africa whose own description of what they do matches “hvac software development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hvac software development companies, and records with no verified work email. Companies headquartered outside South Africa are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 107 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many hvac software development companies are there based in South Africa?

RevenueBase identified 82 hvac software development companies headquartered in South Africa as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

TOAC, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most hvac software development companies?

Johannesburg leads with 16 headquartered companies, followed by Pretoria (8) and Cape Town (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 107 verified decision-maker contacts tracked across these 82 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.