Institute of Search and Technical Rescue is a professional body with the objective of promoting critical reflection, learning and informal peer exchanges to improve service delivery and raise standards within the fields of search and technical rescue.

The Institute of Workplace and Facilities Management (IWFM) is the professional body for workplace and facilities practitioners. They exist to promote excellence among a worldwide community of around 14,000 and to demonstrate the value and contribution of workplace and facilities management more widely.

Institution of Engineering and Technology (IET) is one of the world’s largest engineering institutions with 169,000 members in over 150 countries. The IET is working to engineer a better world by inspiring, informing and influencing our members, engineers and technicians, and all those who are touched by, or touch, the work of engineers.

Integral UK Ltd is Britain's provider of comprehensive maintenance services including mechanical & electrical maintenance, fire & security, building services & projects, fixed wire/pat testing and energy etc. for commercial and public sector buildings including financial institutions, retail outlets, property specialists, corporate premises, government departments, education and health services and social housing landlords.

Integrated Power Services is the North American solution provider for power management, electro-mechanical and rotating assets. The company serves over 5,500 customers across a wide range of industries, including power generation, utilities, water and wastewater, petrochemicals, air separation, oil & gas, metals, mining, paper, aggregates and cement.

Integrated Protection Maintenance Services is part of the Amthal Group Companies, one of the nation’s trusted commercial security and fire protection partners for UK businesses. Accredited by NSI, UKAS, and BAFE, they have been providing complete and compliant security and fire protection for over 20 years.

Interactyx is a global eLearning software company providing engaging and interactive learning experiences to learners, businesses, associations and nonprofit organizations of any size, anywhere in the world. The company is at the forefront of developing learning management system (LMS) solutions that engage learners and enhance collaborative learning environments.

Intercounty Truck & Van has Mercedes-Benz sales and aftersales centres for light and heavy commercial vehicles in Peterborough, Wellingborough, Luton, Lincoln, Milton Keynes and Boston.

Intergraf is the European printing industry's dedicated trade association in Brussels, promoting print and sharing information to harness opportunities for the sector. They represent 20 national printing associations from 19 countries, as well as 5 associate members from 4 countries.

International Conference on Structural and Fire Safety Engineering is an open science research organization dedicated to promoting the advancement of science, engineering, and technology.

International Fire Consultants Ltd. (IFC) is a major force delivering high quality fire safety solutions. IFC consists of a team of highly qualified fire engineers with experience in all areas of fire safety, including fire strategy reports, smoke modelling, evacuation modelling, structural fire engineering, fire risk assessment and the design of passive and active fire safety systems.

International Fire Suppression Alliance (IFSA) is the worldwide center for information on automatic water-based fire suppression systems and a leader in the advancement of their widespread use.

International Research Networks (IRN) is an organiser of Senior Level Summits, High-Profile Meetings, and Training Courses. IRN operate across four sectors; Oil & Gas, Security, Commodity Trading and Infrastructure & Construction. The company works with senior level executives who deliver exclusive presentations, discussions and insights across the most pressing issues.

The International Water Mist Association is the first association of its kind dedicated exclusively to water mist firefighting and related technologies. The IWMA was founded on 4th April 1998 and began maintaining a permanent office at the beginning of 2000. The IWMA's international headquarters in Hamburg, Germany, it supports the continued development, research, and applications engineering of generic water mist systems.

International Workplace delivers accredited training & consulting programs for some of the world’s leading organisations. The company conducts fire risk assessments in accordance with the PAS 79 recommended methodology and the Fire Safety Risk Assessment Guidance documents produced by the Department for Communities and Local Government. Also produces Fire Emergency Plans and Personal Emergency Evacuation Plans (PEEPS) for client's buildings.

Intime Fire Appliances Pvt. Ltd. is one of the major manufacturers of fire fighting appliances and designing and commissioning all type of fire fighting systems. The company deals in products, such as fire extinguishers, fire suppression systems, fire alarm and detection systems, fire hydrant and sprinkler systems.

PH Fire Solutions works nationwide, with an office based in Rossendale, Lancashire. Specializing in the Design, Install, and Service of Fire Detection, Kitchen Suppression Systems, and Fire Suppression Systems including KitchenGuard, Amerex, IG55, IG541, FM200, NOVEC, CO2, and Watermist.

IPS Flow Systems is a UK-based renowned provider of fire sprinklers, suppression systems, valves, wielding equipment and thermoplastic pipping systems. They also offer plastic bodied pumps, plastic sheet and rods, and a comprehensive selection of installation tools and fixings.

Island Fire Protection provides customers with a total solution for fire life safety needs. They design and install fire detection systems, fire alarms, fire extinguishers, providing a bespoke solution for many of the UK’s most prestigious corporate and historic buildings. Island Fire Protection also provides fire safety equipments such as fire blankets, fire hose reels, fireproof cables, etc.

Isorg is a pioneer in organic and printed electronics for large area photo-detectors and image sensors. Its flexible image sensors have application in medical devices, ID security and access control, IoT and consumer electronics.