What Mindstone does

Mindstone (legal entity Mindstone Management, SIREN 991 796 087) is a French single family office founded in 2024 by Christophe Eberlé, headquartered at 4 rue de Thann in Paris's 17th arrondissement. It deploys 100% proprietary personal capital across three pillars: Private Equity, Real Estate, and Financial Assets. The PE practice targets majority and minority stakes of €5M to €15M in established French and European companies with revenues above €5M and proven profitability (positive EBITDA), encompassing use cases such as co-investments, carve-outs, family transmissions, and external growth. The firm operates a complementary Venture Capital practice deploying €100K–€1M seed tickets across more than 13 early-stage holdings. Value creation is delivered via strategic support to management, bolt-on acquisition support, and operational optimization, leveraging the founder's entrepreneurial experience scaling Optimind from inception to a 350-person consulting group sold to Accenture in 2023.

The firm is structured as a four-person team comprising Founding Partner Christophe Eberlé (a trained actuary and Optimind founder), Partner Julie Smithwhite (UBS/Perwyn/BOLD-L'Oréal background leading the PE practice), Analyst Baptiste Brun (EM Lyon, BOLD and Obratori experience), and Chief of Staff Priscilla Garnier (Sciences Po, Shiseido and consulting background). Tickets range from €100K seed checks to €15M PE positions, with flexible ticket sizing "depending on opportunities." The firm does not charge management fees and is not a registered AIFM; deal sourcing is conducted via direct outreach to founders, investment funds, and investment bankers supplemented by a LinkedIn presence under the Mindstone Capital brand.

The portfolio spans 19 holdings across diversified verticals: Data Governance and Risk Management (Iskera, DeltaRM), Freelance Tech (Crème de la Crème), Consumer and Baby Hygiene (Les Petits Culottés), InsurTech (Flitter, Dylogy), RegTech and GDPR compliance (Adequacy, Caarl), EdTech and AI training (On Train), Consumer Eyewear (Lazare Studio), Food & Beverage (Maslow, Jay & Joy, Broko), MedTech (Ziwig), FinTech and Equity Release (Mirabelle), and CyberTech and OSINT (Aleph Networks). Recent co-investment activity includes a €2 million round for plant-based cheese maker Jay & Joy led jointly with Demeter, Beyond Impact, Vivegan, and Makesense in March 2026. The firm is privately held by Christophe Eberlé with no external institutional investors or limited partners.

Name

Mindstone

Legal name

Mindstone Management

Website

https://mindstone.fr

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Mindstone is a Paris-based single family office founded in 2024 by Christophe Eberlé that deploys 100% proprietary personal capital into French and European Private Equity (€5-15M tickets, revenue >€5M, profitable companies), seed Venture Capital (€100K-€1M), Real Estate, and Financial Assets.

Ownership category

akta.pro rank

Product category

Private Equity / Family Office Services

NAICS

Funds, Trusts, and Other Financial Vehicles (525), Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282), Investors, Nec (6799)

akta.pro primary industry

Family Office Investment Platforms & Direct Investing (PE/VC/Co-Invest) (FSAAADAH)

akta.pro secondary industries

Venture Capital Fund-of-Funds / Multi-Manager Platforms (FSANAAAJ), Core Real Estate (Stabilized/Core-Plus) (FSAAAKAA)

Keywords

• Private equity
• Family office
• Venture capital
• Real estate investment
• Asset management

Headquarters

HQ city

La Rue De Pré

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Private Equity Returns: Mindstone generates returns through private equity investments in established companies with €5-15M tickets, providing both majority and minority capital. The firm leverages strategic support, bolt-on acquisition support, and operational optimization to create value in portfolio companies.
2. Real Estate: Heritage and opportunistic strategy combining long-term vision, selectivity and active asset management in real estate investments.
3. Financial Assets: Diversified allocation in liquid assets via external managers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Mindstone is a single family office founded in 2024 that deploys 100% proprietary capital across three asset classes: Private Equity (€5–15M majority and minority tickets in established French and European companies with revenue exceeding €5M), Real Estate (heritage and opportunistic strategy with active asset management), and Financial Assets (diversified allocation in liquid assets managed via external managers). The firm also runs a Venture Capital practice deploying seed capital of €100K–€1M into early-stage startups.

Product overview

Mindstone is a single family office built around 100% proprietary capital, deploying investments across three core asset classes: Private Equity (majority and minority operations with €5–15M tickets, targeting established French and European companies with revenues exceeding €5M and proven profitability), Real Estate (heritage and opportunistic strategy with long-term vision and active asset management), and Financial Assets (diversified allocation in liquid assets via external managers). The firm operates a two-pronged investment strategy, with a Private Equity practice focused on growth-stage companies and a Venture Capital practice deploying seed capital (€100K–€1M tickets) in early-stage startups. The portfolio spans 19 companies across diverse sectors including FinTech (DeltaRM, Mirabelle), InsurTech (Flitter, Dylogy), RegTech/Compliance (Adequacy, Iskera), LegalTech (Caarl), EdTech (On Train), HealthTech/MedTech (Ziwig), CyberTech (Aleph Networks), Food & Beverage (Maslow, Broko, Jay & Joy), Consumer (Les Petits Culottés, Lazare Studio), and Freelance Tech (Crème de la Crème).

Differentiator

Problem solved

Functional benefit

Products and services

• Private Equity Majority and minority private equity operations, alone or co-invested, in established French and European companies with revenues exceeding €5M and proven profitability. Investment tickets range from €5M to €15M, with flexible capacity depending on opportunities.
• Real Estate
• Financial Assets
• Venture Capital Seed capital deployment of €100K to €1M tickets in early-stage startups across sectors including FinTech, InsurTech, RegTech, LegalTech, EdTech, MedTech, CyberTech, Food & Beverage, and Consumer. The fully deployed fund covers more than 13 portfolio companies.

Quantifiable outcome

• Flexible investment capacity depending on opportunities

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Emerging players

• Truffle Capital: Paris-based venture capital firm investing in deep-tech, biotech, and fintech startups. Comparable on Mindstone's seed-stage French venture practice, particularly in regulated/specialized verticals like MedTech and AI.
• Raise Sherpas / Raise: French private equity and venture platform backing growth-stage French SMEs and startups. Overlaps with Mindstone's domestic French focus and growth/seed ticket range (€100K–€1M VC component).

Direct peers

• M Capital: French family office deploying proprietary capital into SMEs and growth-stage French companies. Comparable mandate of direct minority/majority investments in established profitable businesses with a similar founder-led governance model.
• Otium Capital: French single-family office of entrepreneur Pierre-Edouard Stérin, deploying proprietary capital directly into private equity, venture, and real assets. Highly comparable business model, ticket size profile, and founder-led structure to Mindstone.
• Cathay Capital: Paris-headquartered global private equity and venture platform investing across Europe, the US, and Asia. Comparable as a Paris-anchored, sector-flexible mid-market investor with European and international reach.

Broad incumbents

• Astorg: Independent European mid-market private equity firm headquartered in Paris. Overlaps with Mindstone on the European profitable-mid-market sweet spot and sector-agnostic posture.
• LBO France: French private equity and real estate manager with mid-market, venture, and real-estate strategies. Comparable multi-asset French mid-market presence, though with institutional rather than proprietary capital.
• Wendel: Long-standing family-controlled investment company (originally Maison Wendel) listed on Euronext Paris, focused on long-hold private equity. Comparable as a family-anchored long-duration investor, but at materially larger scale and with public-company governance.
• PAI Partners: Paris-based private equity firm investing in mid-to-large European companies across sectors. Comparable mid/large-ticket European PE focus, though structured as a traditional fund manager rather than a family-office vehicle.
• Eurazeo: Major European listed investment group with Private Equity, Private Debt, and Real Assets platforms. Overlaps with Mindstone's mid-market, profitable-company PE mandate and European footprint, but operates at much greater AUM with institutional capital.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mindstone-capital

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries16 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments2 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mindstone