Plenium Partners
Plenium Partners is a Madrid-based private investment manager founded in 2007 that deploys proprietary and third-party capital into operational renewable energy and sustainable infrastructure assets across Europe through closed-end fund vehicles. It serves institutional and individual investors via Helia Renovables, Temper Solares, Ecualia Capital, and Vstudent Aulis fund families.
- Company typePrivate
- Founded2007
- HeadquartersMadrid, Spain
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Plenium Partners does
Plenium Partners, S.L. is a Madrid-headquartered private investment manager founded in 2007 that invests in operational renewable energy and sustainable infrastructure assets across Europe, primarily through closed-end fund vehicles. The firm operates four investment verticals: Renewable Energy (wind, hydro, solar PV, solar CSP, and battery storage through the Helia Renovables I-IV and Temper Solares I-III fund families), Energy Transition (district heating, distributed generation, agrivoltaics, energy efficiency, biogas and biomethane via Ecualia Capital), Circular Economy (plastic and metal recycling, waste management), and Real Estate Accommodation (student housing, co-living, co-working via Vstudent Aulis I-II).
The company is registered with Spain's CNMV as a collective investment management company (SGEIC, No. 126) and combines proprietary capital with third-party institutional and individual investor funds under an active-management-and-industrial-capabilities model. To date it has deployed more than €7.5 billion of capital across over 300 operational assets in four countries, with offices in Madrid and Rome. Revenue is generated through fund management fees on managed capital and through returns on the firm's own capital invested alongside LPs.
In March 2026, Plenium's parent agreed to merge its SGEIC with Bankinter Investment's SGIIC, taking a 27.5% stake in Bankinter Investment and creating a combined platform managing approximately €14 billion in assets, while also acquiring a stake in Access Capital Partners (~€9 billion committed capital) to extend pan-European reach. The firm's recent transaction cadence — a €1.1 billion sale of a 260 MW Spanish PV portfolio to La Caisse-backed Velto Renewables (September 2024), a €320 million wind portfolio sale to Galp Energia (April 2026), €25 million of debt financing from ING Italia for a Lombardy biomethane plant (April 2025), and €130 million of solar financing via CaixaBank and Abanca for the Helia IV vehicle (May 2026) — demonstrates an active rotation strategy across development, construction, and divestment phases.
Plenium Partners firmographics
Firmographics- Name
- Plenium Partners
- Legal name
- Plenium Partners, S.L.
- Website
- https://pleniumpartners.com
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Plenium Partners is a Madrid-based private investment manager founded in 2007 that deploys proprietary and third-party capital into operational renewable energy and sustainable infrastructure assets across Europe through closed-end fund vehicles. It serves institutional and individual investors via Helia Renovables, Temper Solares, Ecualia Capital, and Vstudent Aulis fund families.
- Ownership category
- akta.pro rank
Plenium Partners industry classification
Industry- Product category
- Renewable Energy and Sustainable Infrastructure Investment Management
- NAICS
- Other Investment Pools and Funds (5259), Portfolio Management and Investment Advice (523940)
- SIC
- Investment Advice (6282), Investors, Nec (6799)
- akta.pro primary industry
- Renewables & Energy Transition Funds (Solar, Wind, Hydrogen, CCUS) (FSANAEAD)
- akta.pro secondary industries
- Sustainable Private Markets (Impact PE/VC, Private Credit, Infrastructure) (FSAAALAG), Institutional Consulting RIAs (OCIO/Endowments/Foundations/Pensions) (FSAAACAG), Infrastructure & Energy Fundraising Placement (FSAEALAF)
Keywords
Where Plenium Partners is headquartered
LocationHeadquarters
- HQ city
- Madrid
- HQ country
- Spain
- HQ region
- Europe
Offices2 records
Markets served
Plenium Partners business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Others
Revenue model
- Fund Management Fees: Manages investment funds and charging management fees for overseeing renewable energy and sustainable infrastructure assets on behalf of institutional and individual investors
- Proprietary Capital Investment Returns: Invests own capital alongside third-party funds, generating returns through ownership and active management of operational renewable assets
Go-to-market motion1 record
Distribution channels2 records
Marketing channels2 records
Plenium Partners product offering
Product offeringCore offering
Plenium Partners is an investment company that raises and deploys capital across renewable energy (wind, hydro, solar PV, solar CSP, battery storage), energy transition (district heating, agrivoltaics, biogas/biomethane, energy efficiency), circular economy (recycling, waste management), and real estate accommodation (student housing, co-living, co-working) assets in Europe. It manages multiple closed-end fund vehicles (Helia Renovables, Ecualia Capital, Vstudent Aulis, Temper Inversiones Solares) on behalf of institutional and qualified individual investors while co-investing its own proprietary capital. The firm applies an active management and industrial capabilities approach to operational renewable and sustainable infrastructure assets to deliver long-term sustainable returns.
Product overview
Plenium Partners operates as a multi-fund investment management platform offering investment vehicles across four main asset categories: (1) Renewable Energy (Helia Renovables FCR funds I-IV, covering wind, hydro, solar PV, solar CSP, and battery storage); (2) Energy Transition and Circular Economy (Ecualia Capital FCR, plus biogas/biomethane platforms including the Pavia plant); (3) Solar-specific funds (Temper Inversiones Solares SCR I-III); and (4) Real Estate Accommodation (Vstudent Aulis student housing funds). The company manages approximately EUR 14 billion in assets through these fund structures, investing its own capital alongside institutional and individual investors, with a focus on operational renewable assets across Spain, Italy, and other European markets.
Differentiator
Problem solved
Functional benefit
Products and services
- Helia Renovables FCR
- Helia Renovables II FCR
- Helia Renovables III FCR
- Helia Renovables IV FCR
- Helia Energía Renovable III SCR
- Helia Energía Renovable IV SCR
- Temper Inversiones Solares I SCR
- Temper Inversiones Solares II SCR
- Temper Inversiones Solares III SCR
- Ecualia Capital FCR
- Vstudent Aulis FCR
- Vstudent Aulis II FCRE
Quantifiable outcome
- EUR 14 billion in combined platform assets after Bankinter merger
- +2 more outcomes
Companies that use Plenium Partners
Customer profileNamed customers6 records
Segments4 records
Ideal customer profiles1 record
Plenium Partners technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Plenium Partners partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered minor, flagship and core.
- Galp EnergiaminorGalp Energia acquired a wind portfolio in Spain from Helia Funds for €320 million, comprising 17 wind farms. This represents a divestment by Plenium/Bankinter's joint venture vehicle.
- Bankinter InvestmentflagshipBankinter Investment SGIIC agreed to integrate its management company with Plenium Partners SGEIC, with Plenium's parent company taking 27.5% stake in Bankinter Investment. The merger creates a combined platform managing around EUR 14 billion in assets and enables pan-European expansion.
- Access Capital PartnerscoreBankinter Investment announced acquisition of a significant stake in Access Capital Partners, a European alternative asset manager focused on infrastructure and venture capital with approximately €9 billion in committed capital, present across France, UK, Germany, Finland, Belgium, and Luxembourg.
- Velto RenewablescoreVelto Renewables acquired a 260 MW operational photovoltaic portfolio from Plenium Partners and Bankinter Investment for €1.1 billion, comprising 53 assets. Velto is backed by La Caisse (formerly CDPQ).
Scale indicators10 records
Recent moves7 records
Expansion highlights6 records
Plenium Partners competitors and assessment
Company assessmentDirect peers
- Glennmont Partners: Europe-focused clean energy infrastructure fund manager, now part of Nuveen. Closely comparable to Plenium as a specialist renewables private equity manager raising closed-end funds from institutional investors and operating wind/solar portfolios across Iberia and the EU.
- Cubico Sustainable Investments: Global renewables investor with significant Iberian and Southern European operational wind and solar assets. Directly comparable business model—pooled institutional fund vehicles investing in operational renewable assets across Europe, including Spain and Italy.
- Antin Infrastructure Partners: European-focused infrastructure private equity firm raising multi-billion-euro flagship funds. Comparable as a pan-European infra fund manager competing for the same institutional LP allocations and targeting operational renewable and energy transition assets in Southern Europe.
- Schroders Greencoat: Europe's largest dedicated renewable infrastructure manager (wind, solar, storage). Comparable as a multi-fund renewables platform raising institutional capital to acquire and manage operational wind and solar assets, including in Spain and Italy.
- Q-Energy: European renewables developer and asset manager headquartered in Madrid. Comparable as a Spain-rooted renewable energy fund manager building institutional vehicles around wind, solar PV, and storage assets across Iberia.
Broad incumbents
- Masdar: UAE government-backed global clean energy investor with significant European renewables exposure. Comparable as a large-scale renewable infrastructure investor competing for institutional capital and Iberian/Italian operational assets, but with broader geographic and technology scope.
- Brookfield Renewable Partners: World's largest publicly traded renewable power platform with substantial European wind, solar, and storage assets. Comparable as a competing capital pool for institutional renewable infrastructure allocations and Iberian operational asset acquisitions.
- Acciona Energía: Spanish-listed pure-play renewable utility with a large Iberian wind and solar portfolio. Comparable as a Spanish renewable asset owner and developer operating many of the same assets and competing for the same institutional co-investment mandates.
- Iberdrola Renovables: Spanish global utility and one of the world's largest wind operators with deep Iberian renewable asset base. Comparable as a major Spanish operator of wind and solar assets that competes for institutional renewable infrastructure capital and asset acquisitions.
Regional players
- EDP Renováveis: Iberian-headquartered global renewable developer and operator. Comparable as a Southern European renewable asset owner competing in wind and solar development, asset rotation, and institutional partnerships in Spain and Portugal, though publicly listed and broader in scope.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Plenium Partners social profiles
Digital presencePlenium Partners compliance and trust
Trust signalCompliance2 records
Plenium Partners financial estimates
Financial estimateRevenue estimate
Valuation estimate
Plenium Partners leadership team
Management profileNumber of profiles
Plenium Partners subsidiaries and ownership
Company hierarchySubsidiaries7 records
Plenium Partners funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Plenium Partners M&A and investment
M&A and investmentM&A
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Plenium Partners
What does Plenium Partners do?
Plenium Partners is an investment company that raises and deploys capital across renewable energy (wind, hydro, solar PV, solar CSP, battery storage), energy transition (district heating, agrivoltaics, biogas/biomethane, energy efficiency), circular economy (recycling, waste management), and real estate accommodation (student housing, co-living, co-working) assets in Europe. It manages multiple closed-end fund vehicles (Helia Renovables, Ecualia Capital, Vstudent Aulis, Temper Inversiones Solares) on behalf of institutional and qualified individual investors while co-investing its own proprietary capital. The firm applies an active management and industrial capabilities approach to operational renewable and sustainable infrastructure assets to deliver long-term sustainable returns.
Is Plenium Partners a public or private company?
Plenium Partners is a private company. It is classified as unknown and is currently operating.
When was Plenium Partners founded?
Plenium Partners was founded in 2007. It employs 101 to 250 people.
Where is Plenium Partners based?
Plenium Partners is headquartered in Madrid, Spain, in the Europe region.
How does Plenium Partners make money?
Two revenue lines are on record. Fund Management Fees are the primary driver. The others are proprietary Capital Investment Returns.
Who are Plenium Partners's main competitors?
Direct peers on record are Glennmont Partners, Cubico Sustainable Investments, Antin Infrastructure Partners, Schroders Greencoat and Q-Energy. Broad incumbents are Masdar, Brookfield Renewable Partners, Acciona Energía and Iberdrola Renovables. EDP Renováveis is listed as a regional player.
Does Plenium Partners have an API?
No public API is recorded for Plenium Partners.
What industry is Plenium Partners in?
Plenium Partners's product category is Renewable Energy and Sustainable Infrastructure Investment Management. Its primary akta.pro industry code is FSANAEAD, Renewables & Energy Transition Funds (Solar, Wind, Hydrogen, CCUS), with a secondary code of FSAAALAG, Sustainable Private Markets (Impact PE/VC, Private Credit, Infrastructure). Its NAICS code is 5259 and its SIC code is 6282.