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Tertium Invest

Tertium Invest

Marseille, France·Founded 2012··tertium-invest.com

Marseille-based regional PACA mid-cap PE founded 2012; deploys around EUR 133M across Tertium Croissance I (2012 EUR 22.6M Realized) + Tertium Croissance (2019 EUR 50M Harvesting) + Tertium Fund 2 (2019 EUR 60M Investing) targeting French regional SMEs in industrials, consumer, energy and TMT. Notable exits Maten-Secomoc 2022 Groupe M, Ideol 2018 BW Offshore, Waga Energy September 2025 multi-seller syndicate to EQT EUR 534M.

AUM
€133M
Funds
3
vintages 2012–2019
Portfolio
11
Exits
6
SectorsIndustrialsConsumerBusiness ServicesEnergySoftware

Key facts

HQMarseille, France
Founded2012

Recent exits

Waga Energy
Energy · 2025 · 10yr hold
Maten-Secomoc
Industrials · 2023 · 9yr hold
Ideol
Energy · 2021 · 5yr hold
Traxens
TMT · 2020 · 5yr hold

Coverage notes

3 funds tracked, 17 portfolio companies (11 active · 6 realized). Verified weekly from public filings and deal announcements.

Funds & portfolio

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

3 funds
Tertium CroissanceGrowth
2019 · 7yr€50M3 active · 3 realized

Unrealized

3 held
EeworxActive
TMTFrance· Entry 2020
IndustrialsFrance· Entry 2019
NovRHActive
HealthcareFrance· Entry 2019

Realized

3 exits
AmperisExited 2016
EnergyFrance· Entry 2014
Trade Sale
IdeolExited 2021
EnergyFrance· Entry 2016
Trade Saleto
Waga EnergyExited 2025
EnergyFrance· Entry 2015
Secondaryto
Tertium Fund 2Growth
2019 · 7yr€60M6 active · 1 realized

Unrealized

6 held
JocatopActive
EducationFrance· Entry 2022
KokoonActive
ConsumerUnited Kingdom· Entry 2024
ConsumerFrance· Entry 2023
ConsumerFrance· Entry 2022
IndustrialsFrance· Entry 2020
WebRivageActive
TMTFrance· Entry 2019

Realized

1 exit
Bio&CoExited 2018
ConsumerFrance· Entry 2013
Trade Saleto
Tertium Croissance IGrowth
2012 · 14yr€23M2 active · 2 realized

Unrealized

2 held
IndustrialsFrance· Entry 2022
ReactisActive
SoftwareFrance· Entry 2012

Realized

2 exits
Maten-SecomocExited 2023
IndustrialsFrance· Entry 2014
Trade Saleto
TraxensExited 2020
TMTFrance· Entry 2015
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About Tertium Invest

Tertium Invest is a French private equity firm with €133 million of assets under management as of December 2024, headquartered in Paris. Founded in 2012, the firm focuses on buyout and growth equity investments in European mid-cap businesses across industrials, consumer, business services, energy and software, deploying capital from successive flagship funds with institutional limited partner support.

Investment thesis

Tertium Invest deploys buyout capital into European mid-cap and small-cap businesses across industrials, consumer, business services, energy and software, targeting majority equity positions in profitable companies with clear value-creation runways. Investment focus emphasises operational improvement, selective bolt-on M&A acceleration and selective international expansion across France and selectively across Europe, with capital deployed from successive flagship funds backed by institutional limited partners.

Recent activity

Recent realised exits include Waga Energy (energy, 2025), Traxens (TMT, 2023), Alliance Marine (industrials, 2022) and Maten-Secomoc (industrials, 2022). The platform tracks 3 fund vehicles, 12 active portfolio companies and 5 realised exits across the strategy's history. Detailed buyer names and multiple data available on Pro at €29/month.

Last updated May 2026 · Sourced from public filings