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About MI5

Company HQ location: London, Greater London

Industry: Public Sector

No of employees: 4000

Our company in a nutshell

MI5 – The Security Service

MI5's mission is to keep the country safe. For more than a century we have worked to protect our people from danger whether it be from terrorism or damaging espionage by hostile states.

MI5 currently employs around 4,000 people. Around 40% of staff are women, just over half are under 40 years old, 8% are from black or ethnic minority backgrounds and 3% have a disability. Around 330 staff currently work in MI5 on secondment or attachment from other government departments and agencies. Staff roles cover a number of areas including investigations, languages, technology, surveillance, communications, information, protective security, administration, building services and catering…

A career at MI5 is like no other. Not only is it rewarding and unique but the variety here is like nowhere else. It is this variety that means most people stay at MI5 as they are able to fulfil all their career ambitions here without ever having to leave. We are also committed to rewarding the people who work for us and demonstrating our appreciation for their vital contribution by offering an excellent range of benefits. And due to the nature of our work it means you can’t take it home with you, so when you leave the office you really do leave your work behind you, providing you with an excellent work-life balance. Whatever role you perform, you will be directly contributing to keeping the country safe.

Company Values

Making a difference

Our singular focus on the mission, striving for real results that make the country safer.


Working as one as MI5, bringing together in common purpose the best that everyone can give, supporting colleagues and treating each other with respect, and forging close partnerships and teams with others we depend upon.


Highest standards of integrity, objectivity and sense of proportion; great skills, expertise and experience; high quality information management; strong security culture; commitment to the rule of law, ethical conduct, accountability and compliance with our own procedures.


Constantly seeking new ideas and different approaches to advance our capabilities, improve our ways of working, and overcome obstacles to our success; an embedded habit of learning and development and sharing knowledge.



We offer subsidised in-house physiotherapy.

On-site facilities

There is a subsidised gym, restaurant and coffee bar at some locations.

Clubs and societies

We offer a range of sports clubs, fitness classes, societies and language training facilities.


We understand the importance of saving for retirement and offer a desirable pension scheme, which gives you a guaranteed pension based on career average earnings.

Maternity and Paternity Leave

We offer maternity and paternity leave over and above the statutory entitlements.

Season Ticket Loan

We recognise that travel expenses from your home to the office can be significant, so we offer an interest-free advance of your salary to be used for travel, car park costs or the purchase of a bicycle.

Childcare vouchers

We offer two childcare voucher schemes which provide a simple and cost effective way for employees to receive help towards the cost of childcare.

Eyecare vouchers

We offer eye care vouchers and a financial contribution towards prescription glasses.​


Along with your basic pay, we also have a merit award system to recognise exceptional contributions by individuals or teams. We offer highly competitive salaries where possible, and pride ourselves on offering a good work-life balance.

Annual Leave

Our employees are entitled to 25 days of annual leave, rising to 30 days after five years’ service. In addition to this, employees are entitled to Public and Privilege Holidays. Part-time employees receive the same entitlement calculated on a pro-rata basis.

Case studies

Technology Graduate Development Programme

Business Role

"I was surprised at how quickly I gained real responsibility - managing projects that involved some very senior people."

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