What investment strategy does Rantum Capital focus on?

Rantum Capital focuses on Buyout, Growth strategies in the private equity space.

How many portfolio companies does Rantum Capital have?

Rantum Capital has 9 active portfolio companies and 2 completed exits and 2 funds tracked on GP Intel.

Where is Rantum Capital headquartered?

Rantum Capital is headquartered in Frankfurt, Germany.

When was Rantum Capital founded?

Rantum Capital was founded in 2013.

What sectors does Rantum Capital invest in?

Rantum Capital invests across Healthcare, Software, Industrials, Consumer, Business Services, TMT.

What are Rantum Capital's recent exits?

Recent realized exits by Rantum Capital include: Hornetsecurity (2025) to Proofpoint; montratec (2023) to Columbus McKinnon.

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Rantum Capital

Frankfurt, Germany·Founded 2013·

Buyout Growth Equity

·rantumcapital.de

Rantum Capital is a Frankfurt-based Mittelstand financier founded in 2013 that provides tailor-made private debt (senior and subordinated loans) and majority private equity to German-speaking mid-market companies, managing well over EUR 1 billion across four private debt funds plus a private equity fund, with more than 40 debt portfolio companies and 50-plus loans backed by a network of DAX-experienced industrial partners.

AUM

–

Funds

vintages 2018–2020

Portfolio

Exits

Rantum Capital is a Frankfurt buyout firm with 9 active companies and 2 exits.

SectorsHealthcare Software Industrials Consumer Business Services TMT

Sector breakdown

11 companies

Business Services

2 · 18%

Industrials

2 · 18%

MedTech

2 · 18%

Consumer

1 · 9%

Real Estate

1 · 9%

Cybersecurity

1 · 9%

Telecom

1 · 9%

Key facts

HQFrankfurt, Germany

Founded2013

Websiterantumcapital.de

Recent exits

Rantum Capital sold Hornetsecurity to Proofpoint in 2025 after 5 years.

Rantum Capital sold montratec to Columbus McKinnon in 2023 after 6 years.

Coverage notes

2 funds tracked, 11 portfolio companies (9 active · 2 realized). Verified weekly from public filings and deal announcements.

Funds & portfolio

Every fund Rantum Capital has raised, with its portfolio companies. Hand-checked from public filings.

2 funds

Fund

Strategy

Vintage

Size

Assets

Exits

Rantum Private Equity Fund IIActive

Evergreen20206 assets1 exits

Evergreen

2020 · 6yr

–

Unrealized

6 held

Company	Entry
Aqua Group Business Services · Germany	2021
Bonowi International Police Equipment Industrials · Germany	2020
DPG Deutsche Elektro Pruefgesellschaft Business Services · Germany	2023
Gebrueder Ziegler Consumer · Germany	2020
Stockert MedTech · Germany	2021
Tontarra Medizintechnik MedTech · Germany	2026

Realized

1 exit

Company	Entry	Exit	Type	Buyer	MOIC
montratec Industrials · Germany	2017	2023	Trade Sale	Columbus McKinnon	–

Rantum Private Debt Fund II

Private Debt2018€307M3 assets1 exits

Private Debt

2018 · 8yr

€307M

Unrealized

3 held

Company	Entry
Carestone Real Estate · Germany	2021
Lyocontract GmbH Germany	2024
vitroconnect Telecom · Germany	2021

Realized

1 exit

Company	Entry	Exit	Type	Buyer	MOIC
Hornetsecurity Cybersecurity · Germany	2020	2025	Trade Sale	Proofpoint	–

Frequently asked questions

What investment strategy does Rantum Capital focus on?: Rantum Capital focuses on Buyout, Growth strategies in the private equity space.
How many portfolio companies does Rantum Capital have?: Rantum Capital has 9 active portfolio companies and 2 completed exits and 2 funds tracked on GP Intel.
Where is Rantum Capital headquartered?: Rantum Capital is headquartered in Frankfurt, Germany.
When was Rantum Capital founded?: Rantum Capital was founded in 2013.
What sectors does Rantum Capital invest in?: Rantum Capital invests across Healthcare, Software, Industrials, Consumer, Business Services, TMT.
What are Rantum Capital's recent exits?: Recent realized exits by Rantum Capital include: Hornetsecurity (2025) to Proofpoint; montratec (2023) to Columbus McKinnon.