International Public Partnerships

What International Public Partnerships does

International Public Partnerships (INPP) is a Guernsey-incorporated, London-listed (LON:INPP, FTSE 250) closed-end infrastructure investment trust that invests in and manages a portfolio of 130+ infrastructure assets across 9 OECD countries. The portfolio is concentrated in regulated and contracted public infrastructure such as offshore transmission (OFTOs), utilities, transportation, and other essential services, with Amber Infrastructure acting as Investment Adviser. The company is headquartered in Les Baraques, France, and reports 501-1,000 employees.

INPP's business model is to deploy permanent capital into long-duration, often inflation-linked infrastructure cash flows and to deliver that income back to shareholders as dividends. The trust is marketed to income-focused public market investors, with share marketing restricted in several jurisdictions (US, Australia, Canada, Japan, New Zealand, South Africa, and most of the EEA). INPP has increased its dividend for 10+ consecutive years and reported a 6.23% dividend yield (as of June 2026) with a final interim dividend of 2.15p per share for FY2025.

Performance for 2025 included a 10.6% total NAV return and 4.7% NAV per share growth. Recent strategic activity includes a £254.3M equity commitment to the Sizewell C nuclear project (November 2025), a £42M divestment of a 49% stake in the Moray East OFTO to Daiwa (December 2025), a £225M expanded share buyback program, and the appointment of Sarah Whitney as Chair Designate. Distribution of marketing materials and shares is restricted in several major jurisdictions, narrowing the effective investor base.

Name

International Public Partnerships

Legal name

International Public Partnerships Limited

Website

https://internationalpublicpartnerships.com

Company type

Public

Founded year

2006

Operating status

Operating

Headcount range

501–1,000 employees

Short description

International Public Partnerships is a Guernsey-incorporated, London-listed (FTSE 250) infrastructure investment trust that owns 130+ regulated and contracted public infrastructure assets across 9 OECD countries, delivering long-duration, inflation-linked income to public market investors through dividends.

Ownership category

akta.pro rank

Product category

Infrastructure Investment

NAICS

Securities, Commodity Contracts, and Other Financial Investments and Related Activities (523), Investment Banking and Securities Intermediation (523150), Securities and Commodity Contracts Intermediation and Brokerage (5231)

SIC

Security & Commodity Brokers, Dealers, Exchanges & Services (6200), Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

International/Ex-U.S. Developed Equity (Active) (FSAAAIAE)

Keywords

• Infrastructure investment
• Public infrastructure assets
• Regulated asset base
• Listed investment company
• Infrastructure fund management

Headquarters

HQ city

Les Baraques

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Operations, Others, Personnel, Marketing or Sales

Revenue model

1. Infrastructure Investment Returns: INPP generates returns through strategic investments in global public infrastructure assets. The company earns revenue from regulated, inflation-linked infrastructure investments across sectors including energy transmission, gas distribution, water/wastewater, and transport. Returns come from dividends, capital appreciation, and asset management activities.
2. Capital Recycling: The company implements capital recycling strategies, selling minority stakes in assets (e.g., 49% of Moray East OFTO for £42 million) to fund new investments while retaining majority control and board representation.

Pricing tiers

Distribution channels2 records

Marketing channels4 records

Core offering

International Public Partnerships (INPP) is a closed-ended FTSE 250 listed investment company that invests in global public infrastructure assets across energy transmission, gas distribution, water/wastewater and transport sectors. It provides investors exposure to a diversified portfolio of more than 130 regulated, inflation-linked infrastructure assets and businesses across nine OECD countries, generating returns through dividends, capital appreciation and active asset management. Amber Infrastructure acts as the company's investment adviser.

Product overview

International Public Partnerships (INPP) is a single, unified infrastructure investment platform rather than a modular product architecture. The company operates as a closed-ended FTSE 250 listed investment company that provides investors exposure to a diversified portfolio of over 130 infrastructure assets across nine OECD countries. The portfolio includes regulated assets (Sizewell C nuclear, Cadent gas distribution, Tideway tunnel), offshore transmission infrastructure (Barrow OFTO, Dudgeon OFTO, Beatrice OFTO, East Anglia One OFTO, Moray East OFTO), and transport investments (Angel Trains, Gold Coast Light Rail, Diabolo, BeNEX, Reliance Rail). The company aims to provide stable, long-term, inflation-linked returns based on growing dividends and capital appreciation, with Amber Infrastructure serving as the investment adviser.

Differentiator

Problem solved

Functional benefit

Products and services

• Infrastructure Investment Portfolio

Quantifiable outcome

• 4.7% NAV per share growth in 2025
• +2 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Amber InfrastructurecoreStrategic or Co-development PartnerAmber Infrastructure serves as the Investment Adviser to INPP, providing investment management, advisory, and other services. Amber Infrastructure is a specialist infrastructure investment manager with expertise in public infrastructure assets.

Scale indicators9 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• 3i Infrastructure: 3i Infrastructure is a FTSE-listed infrastructure investment company investing in core economic infrastructure across Europe and the developed world. It competes directly with INPP for institutional income-seeking investors.
• BBGI Global Infrastructure: BBGI is a London-listed infrastructure fund focused on PPP/PFI and essential public infrastructure assets, predominantly in the UK, Europe, North America, and Australia — a near-identical mandate to INPP.
• Sequoia Economic Infrastructure Income Fund: Sequoia is a London-listed investment trust focused on economic infrastructure debt and equity across the UK, Europe, North America, and Australasia. It competes with INPP for the same income-seeking institutional allocator base.
• HICL Infrastructure: HICL is a FTSE-listed closed-end infrastructure investment company with a comparable portfolio of PPP/PFI and regulated assets across OECD countries. It is the closest UK-listed peer to INPP in mandate, structure, and target investor base.
• GCP Infrastructure Investments: GCP Infrastructure is a UK-listed closed-end fund investing in UK infrastructure assets, primarily PFI/PPP projects. It is a smaller-scale direct peer with overlapping asset categories (schools, hospitals, transport) and similar income-investor appeal.

Emerging players

• Bluefield Solar Income Fund: Bluefield Solar is a London-listed fund investing in UK solar infrastructure. It is a smaller, sector-specific peer that competes for the same yield-oriented infrastructure investor base as INPP.
• Greencoat UK Wind: Greencoat UK Wind is a London-listed renewable infrastructure fund focused on UK wind farms. It overlaps with INPP on OFTO/renewable transmission exposure but is narrower in sector scope.

Broad incumbents

• National Grid: National Grid is a large UK-listed utility that owns regulated electricity and gas transmission networks (including parts adjacent to INPP's Cadent gas and OFTO positions). It is a broader incumbent operating at utility scale rather than as a fund.
• SSE plc: SSE is a major UK-listed regulated utility operating in electricity transmission, distribution, and renewables. Several of INPP's portfolio assets (transmission, OFTOs) sit in sectors where SSE is a direct operating participant.

Regional players

• Atlas Arteria: Atlas Arteria is an ASX-listed toll road infrastructure company. It is a comparable listed-infrastructure yield vehicle for income investors but operates primarily outside INPP's core UK/European geographic footprint.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks7 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/international-public-partnerships-ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about International Public Partnerships