Midinvest
also invests · investor profileJyväskylä, FI · 1 known investors
Midinvest Management is a partner-owned private equity fund management firm specializing in ownership arrangements and growth financing for small and medium-sized enterprises in Finland. The firm actively supports its portfolio companies' development and growth through close collaboration.
Also known as Midinvest Management · Midinvest Management Oy · Midinvest Oy
Founders & leadership
Investors · 1
Company profile
researched Aug 2026Midinvest Management Oy is a partner-owned private equity fund management company headquartered in Jyväskylä, Finland. It specialises in ownership arrangements (including succession and buyout situations) and growth financing for small and medium-sized enterprises, and works closely and actively with its investee companies. The firm invests in growth companies operating in Central Finland, mainly taking minority positions, and structures investments as share capital or various loan instruments.
The management company states it invests in companies with turnover typically under EUR 10 million; its investments page describes a target range of EUR 1-30 million in turnover. Investment criteria include potential for value creation, substantial growth potential organically or via acquisitions and internationalisation, proprietary products or services, and experienced, entrepreneur-driven and committed management; in early-growth companies the first customer must already be in sight. The team consists of three partners: Managing Director Jarkko Danska (joined 2020, appointed CEO from April 2026), Investment Director Jukka-Pekka Nikula (joined 2011) and Investment Director Jarkko Kosonen (joined 2025), who also hold board seats in portfolio companies.
Third-party profiles describe Midinvest Management as a Finland-based private equity investor active from early stage to buyout, with funds covering the whole of Finland as well as regional funds, and list eight funds under management.
Business model
Midinvest Management Oy acts as a general partner/management company for private equity funds, raising capital from institutional and regional investors (for example the cooperative Osuuskauppa Keskimaa, which joined the Midinvest fund as an investor and partner in November 2021) and deploying it into portfolio companies through equity and loan instruments, with returns realised on exits such as trade sales and management buyouts.
Fund management of private equity vehicles; capital is deployed as equity or loan instruments into portfolio companies and monetised through exits.
Traction
Cumulative investments of more than EUR 60 million into over 100 Finnish companies (EUR 40 million into 90 Central Finland companies), eight funds managed and approximately 100 transactions completed. The current portfolio comprises 13 listed companies including 3D Formtech, Aiwo Digital, BiopSense, Howspace, Suomen KotiData, Polarmatic, Puuppolan Suksi, Saizeri, Secapp, Sleipner Group, Skandino, Weeefiner and Woolman, alongside 30 exits listed since 2012.
Latest developments
In August 2026 portfolio company Vamos Natural Finland Oy agreed to transfer the Skandino product family to Putinki Art Oy, a subsidiary of Lehtipiste Group. In April 2026 Jarkko Danska was appointed CEO. In December 2025 Midinvest and co-shareholders sold Lumo Analytics to Canada's GeologicAI; in November 2025 Midinvest acquired a minority stake in bioproduct technology firm Saizeri Oy; in September 2025 Stafix Oy moved to management ownership; and in June 2025 portfolio company C2 SmartLight was sold to Hansab Group.
▸Full profile — market position, go-to-market, geography, history
Market position
A regionally focused private equity manager in Central Finland: funds managed by Midinvest Management have invested more than EUR 60 million in over 100 Finnish companies, of which EUR 40 million went to 90 Central Finland companies.
Positions itself as a local partner offering close, hands-on cooperation with investees, combining long regional history in Central Finland (investing since 1994) with partner experience in operative and strategic management, internationalisation, M&A and financing.
Go-to-market
The firm sources deals directly through its partners, who are responsible for deal flow, new investments and investor relations, and supports portfolio companies through active board work; it also runs educational events, such as a November 2025 webinar on profitable growth organised with Keski-Suomen OP and Secapp Oy, and recruits investment and financial administration staff in Jyväskylä.
Small and medium-sized enterprises in Central Finland across all business-cycle phases, from start-ups to companies in succession or ownership-restructuring situations, with turnover typically under EUR 10 million (stated range 1-30 MEUR); fund investors include regional institutions such as cooperatives.
Geography
Based in Jyväskylä, Finland, with an investment focus on Central Finland; third-party sources note funds covering the whole of Finland as well as regional funds. Portfolio exits have involved international buyers, including Canada's GeologicAI and the international Hansab Group.
History
Investments into Central Finland companies were made from the oldest fund, Midinvest Oy, starting in 1994; the management company itself was founded in 2001. Since then it has managed eight private equity funds and executed approximately 100 transactions. Recent milestones include Osuuskauppa Keskimaa joining as fund investor and partner (2021), investments in Secapp (2021), Puuppolan Suksi/PUSU and Weeefiner (2022), Skandino (2023), BiopSense (2024) and Saizeri (2025), and exits including Rotomon (2022), Nordic Drones (2024), C2 SmartLight, Stafix and Lumo Analytics (2025).
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 14
launches, deals, and filingsPortfolio company Vamos Natural Finland Oy and Putinki Art Oy, a subsidiary of Lehtipiste Group, agreed that the Skandino product family becomes part of Putinki Art Oy's business, targeting international growth.
Midinvest Management Oy appointed Jarkko Danska as CEO effective April 2026; he had served as Investment Director at Midinvest since 2020.
Midinvest and other shareholders sold the entire share capital of Lumo Analytics to Canadian company GeologicAI, integrating the Finnish technology into a mining sensor suite.
Midinvest took a minority shareholding in Saizeri Oy, a high-technology equipment manufacturer and bioproduct technology company based in Seppalankangas, Jyvaskyla, targeting international growth.
Stafix Oy, known for glue-free and low-emission advertising materials, moved to ownership by its operating management via a management buyout agreed by CEO Jose Ayala and Sales & Marketing Director Aleksi Rastela.
Midinvest, together with other investors, sold its holding in Finnish smart lighting solutions developer C2 SmartLight to the international Hansab Group.
Weeefiner, a start-up focused on material circulation, received growth funding from Midinvest Ltd to strengthen growth and business development.
Midinvest became an investor in Puuppolan Suksi Oy, manufacturer of premium downhill skis and snowboards, to accelerate growth and business development.
Lumo Analytics Oy, developer of analytical services for ore exploration and mining, partnered with Midinvest Management Oy as a fund managed by Midinvest participated in its seed funding round.
Karnell acquired a majority of shares in Rotomon Oy on 11 January 2022; CEO Antti Kuukkanen and prior main owner Midinvest Oy continued as minority shareholders.
Secapp Ltd strengthened its ownership base and selected private equity fund Midinvest Oy as a partner; Midinvest brings expertise in scaling international SaaS businesses.
The cooperative Osuuskauppa Keskimaa joined private equity fund Midinvest as an investor and partner, directing investments to business activity in Central Finland.
Woolman Oy, described as the largest Shopify agency in the EU, received a EUR 1.2 million investment from Midinvest Management Ltd's fund together with Gorilla Capital's fund and another investor.
The management company was established in 2001; investments from its oldest fund, Midinvest Oy, into Central Finland companies date back to 1994.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- Midinvestmidinvest.fi · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Midinvest do?
- Partner-owned Finnish private equity fund manager investing in small and mid-sized growth companies in Central Finland.
- Who are Midinvest's investors?
- Midinvest's investors include Tesi (Finnish Industry Investment Ltd).
- Where is Midinvest headquartered?
- Midinvest is headquartered in Jyväskylä, FI.