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Summa

Q: Who owns Summa?

Summa is now owned by Ergon and Apheon, which acquired it in 2021 from Gimv.

Q: When did Ergon and 1 other acquire Summa?

Ergon and 1 other acquired Summa in 2021, buying from Gimv.

Q: Who did Summa sell to?

Gimv sold Summa to Ergon in 2021 (Secondary).

Q: Who has owned Summa over time?

Summa has been through 2 private-equity ownership periods: Apheon · via AMB IV · since 2021; Gimv · 2021–2021 · sold to Ergon · (Secondary).

Industrials·

Netherlands·Active·5yr hold

Entry

2021

Hold

5yr

Status

Active

Who owns Summa?

Summa is a Dutch Industrials company, now owned by Ergon and Apheon, which acquired it in 2021 from Gimv.

Hand-verified · updated 2026-09-30

Open JSON · CC-BY

Most recent investor

Apheon

AMB IV · 2019 · Buyout

2 ownership periods · full history below

Key facts

HQNetherlands

SectorIndustrials

Websitewww.summa.com

Ownership history

2 ownership periods

Active

Currently held by Apheon since 2021.

ApheonActive

2021 · present(5yr) · AMB IV · 2019 · Buyout

GimvExited 2021

2021 · 2021(<1yr) · Gimv Portfolio

Secondary · to Ergon

Gimv sold Summa to Ergon in 2021 after less than a year.

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Questions

Who owns Summa?

Summa is now owned by Ergon and Apheon, which acquired it in 2021 from Gimv.

When did Ergon and 1 other acquire Summa?

Ergon and 1 other acquired Summa in 2021, buying from Gimv.

Who did Summa sell to?

Gimv sold Summa to Ergon in 2021 (Secondary).

Who has owned Summa over time?

Summa has been through 2 private-equity ownership periods: Apheon · via AMB IV · since 2021; Gimv · 2021–2021 · sold to Ergon · (Secondary).

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