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COI Partners Capital Management

COI Partners Capital Management

Frankfurt, Germany·Founded 2001··coi-partners.com

COI Partners (formerly Co-Investor) is a DACH growth-capital investor founded in 2001 and headquartered in Frankfurt, with offices in Berlin and Zurich. It backs growth-phase small and mid-sized companies on a deal-by-deal, club-deal basis, writing equity tickets of roughly EUR 15-35m that are pooled through a single co-investment vehicle rather than a traditional blind-pool fund.

AUM
Funds
1
vintages 2001
Portfolio
10
Exits
6

Key facts

HQFrankfurt, Germany
Founded2001
Employees18+

Recent exits

Mister Spex
E-commerce2021 · 1yr hold
Nextbike
Nextbike
Mobility2021 · 4yr hold
Fixatti
Industrials2020 · 7yr hold
casualfood
Hospitality2019 · 7yr hold

Coverage notes

1 fund tracked, 16 portfolio companies (10 active · 6 realized). Verified weekly from public filings and deal announcements.

Sector breakdown

16 companies
MedTech
4 · 25%
Hospitality
3 · 19%
Software
2 · 13%
Industrials
1 · 6%
Gaming
1 · 6%
Consumer
1 · 6%
Business Services
1 · 6%
E-commerce
1 · 6%

Funds & portfolio

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

1 fund
COI Partners Deal-by-DealGrowthActive
2001 · 25yr10 active · 6 realized

Unrealized

10 held
GamingGermany· Entry 2021
GroverActive
ConsumerGermany· Entry 2022
Business ServicesGermany· Entry 2017
Occlutech
OcclutechActive
MedTechGermany· Entry 2012
ProMedical
ProMedicalActive
MedTechSwitzerland· Entry 2021
ResearchGateActive
SoftwareGermany· Entry 2020
HospitalityGermany· Entry 2020
SoftwareGermany· Entry 2023
TSE Systems
TSE SystemsActive
MedTechGermany· Entry 2020
TTTech
TTTechActive
Deep TechAustria· Entry 2017

Realized

6 exits
casualfoodExited 2019
HospitalityGermany· Entry 2012
Trade Saleto
EuroimmunExited 2017
MedTechGermany· Entry 2010
Trade Saleto
FixattiExited 2020
IndustrialsSwitzerland· Entry 2013
Trade Saleto
Mister SpexExited 2021
E-commerceGermany· Entry 2020
IPO
Nextbike
NextbikeExited 2021
MobilityGermany· Entry 2017
Trade Saleto
Nordsee
NordseeExited 2018
HospitalityGermany· Entry 2006
Secondaryto
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About COI Partners Capital Management

COI Partners Capital Management AG (originally registered August 2004 as EquiNet Venture Partners AG and renamed to its current designation August 2022) trades under the brand COI Partners and operates the German management entity COI Partners Deutschland GmbH alongside the Swiss-anchored group. The headquarters are in Frankfurt am Main with the broader group operating from Zurich, Frankfurt and Berlin. The original Co-Investor AG group brand was founded in 2001. The German AG was incorporated in 2004 and rebranded to COI Partners Capital Management AG in 2022. Assets under management are approximately €300 million as of the July 2022 first close of the COIP DACH Growth II SCSp fund (€120 million), with subsequent capital deployment through 2024 remaining around the €300 million scale. The structure is an independent growth-equity group organised around a Luxembourg SCSp fund vehicle supported by a German Capital-Management AG and Swiss operating entity. Two principal vehicles: the historic deal-by-deal co-investment platform anchored by entrepreneur LPs and the COIP DACH Growth II SCSp fund. The group is a BVK member. The combined platform has executed over 110 initial and follow-on investments and 40 exits since inception.

Investment thesis

COI Partners pursues a growth equity strategy for established small and mid-sized companies in the DACH region with proven business models and ideally positive cashflow. The firm blends a discretionary fund with a deal-by-deal co-investment vehicle, allowing larger ticket flexibility per transaction and giving its limited partner base direct exposure to selected deals. The firm positions itself as an entrepreneur-backed investor (entrepreneurs finance entrepreneurs), emphasising operational rather than purely financial support. Sectors are sector-agnostic with historical concentration across IT and software, consumer and retail, life sciences, technology and industrials. The portfolio spans both classical mid-market industrials and high-growth digital businesses. Geography is focused exclusively on the DACH region (Germany, Austria, Switzerland), targeting companies operating in or expanding from German-speaking markets. Ticket size is €15 to €30 million per company in initial and follow-on investments, drawing on the SCSp fund and matching co-investment commitments from the LP network. The limited partner base is predominantly DACH-based with a network of entrepreneurs and family offices alongside institutional limited partners. Value creation operates through long-duration partnership with hands-on engagement, growth capital for international expansion, follow-on capacity through the deal-by-deal vehicle and access to an entrepreneur network spanning over 20 years.

Recent activity

Recent investments include TestSolutions in software and IT services (2023, acquired alongside Patrimonium Private Equity), ASQA Software Quality Assurance in software and IT services (2025 bolt-on acquired by TestSolutions), Grover in consumer technology (held position into 2024), ResearchGate in technology and SaaS (held position into 2024) and TTTech in technology and industrials (held position into 2024). Recent exits include Casualfood in consumer and food retail, Euroimmun in life sciences and diagnostics, Fixatti in industrials and chemicals, Mister Spex in consumer and retail (partial exit at IPO), NextBike in consumer and mobility, Nordsee in consumer and food retail and Freaks 4U Gaming in consumer and media (2024). Detailed buyer names and multiple data available on Pro at €29/month.

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Last updated March 2026 · Sourced from public filings · Report an issue