3i Group plc is a private equity firm specializing in mature companies, growth capital, middle markets, infrastructure, and management leveraged buyouts and buy-ins.

The firm also provides infrastructure financing and debt management.

For debt management, it invests in senior and mezzanine corporate debt in typically large and private companies in United Kingdom, Europe, Asia, and North America.

It makes private equity investments in business and technology services, financial services, consumer, healthcare, consumption and distribution, media and telecom, renewable energy, wind, and industrial sector.

Within business and technology services, the firm seeks to invest in sub sectors such as testing, inspection and certification; BPO and consultancy; human capital including staffing, governance, risk and compliance, services to pharmaceutical companies, vertical application software, education and training businesses; facilities management; support services to industrial sectors such as oil and gas and utilities; human resources outsourcing and advising; recruitment; logistics and infrastructure support services including distribution, waste, and rental.

In the consumer sector, it focuses on polarization, health and wellness, ageing population, millennials, consumer goods; e-commerce; retail; food and drinks; and leisure.

In the healthcare sector, the firm focuses on pharmaceuticals and biotechnology including specialty pharma, generics / OTC, drug delivery, and animal health; healthcare Services including activities such as elderly and specialty care, including caring for people in their own homes, in hospital and in community facilities, as well as operational services such as outsourced support, clinical services and B2B contract services; medical devices and technology including devices, medical equipment and consumables, diagnostics, and healthcare IT.

In the industrial sector, it focuses on automotive, chemicals, construction and building products, electronics and electrical components, flow control and filtration, life science manufacturing, mobility, packaging, software, oil, gas and power.

Through 3i BIFM Limited and 3i Infrastructure plc the firm makes infrastructure investments where it focuses principally on the utilities including energy transmission and storage, electricity and gas distribution, water, power generation, and communication network; transportation including airports, ports, ferries, toll roads, and rail; and social infrastructure sector including primary and secondary PFI, public private partnerships, healthcare, education, and government accommodation.

In infrastructure it invests primarily in utilities, transportation and social infrastructure in the United Kingdom, France, Italy, Europe, and Ireland.

The firm prefers to invest in companies across Europe, France, United States, South America, and Asia.

It seeks to make new investments in Northern Europe and North America.

The firm typically invests between €5 million ($5.59125 million) and €300 million ($335.475 million) in companies with an enterprise value typically between €100 million ($111.825 million) and €500 million ($559.125 million) and sales value between €80 million ($89.46 million) and €1500 million ($1677.38 million).

It seeks to take either majority or minority stakes.

It seeks to take a board seat in its portfolio companies with regards to infrastructure investments.

The firm invests through a combination of third-party and proprietary capital.

It invests through its personal capital. 3i Group plc was founded in 1945 and is based in London, United Kingdom with additional offices across Europe, North America, and Asia.