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Portland Quarry, Readymix & Hollowcore

Portland Group supplies aggregates, ready-mix concrete and hollow core products in the Western Cape.

Construction
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Headquarters
Cape Town, South AfricaSource: RevenueBaseRetrieved October 13, 2026
Employee range
201 to 500Source: RevenueBaseRetrieved October 13, 2026
Founded
1988Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
36 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Portland Quarry, Readymix & Hollowcore do?

Portland Builders was founded in 1988 by Nico Heyns and Helenus Scholtz. Portland Quarry produces construction aggregates, primarily crushed stone and dust from Malmesbury Hornfels deposits.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

What the business offers

Services & capabilities.

Construction aggregates

The quarry produces crushed stone and dust from Malmesbury Hornfels deposits.

Source: LinkedIn company description · Retrieved October 13, 2026

Ready-mix concrete

Three Readymix plants provide a range of concrete designed for the construction industry.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

Share your recognition

Embeddable award for your website

BADGE PREVIEWPortland Quarry, Readymix & Hollowcore listed #1 on Architectural precast concrete companies, September 29, 2026Open the published source list.
Portland Quarry, Readymix & Hollowcore

#1 Architectural precast concrete companies

Snapshot: September 29, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 3, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 14, 2026, September 15, 2026, September 16, 2026, September 18, 2026, September 19, 2026, September 20, 2026, September 28, 2026, September 29, 2026 and October 9, 2026. How the company lists are built.

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