How to Write a Good Brief for an Event Agency: What to Include

An event brief is the starting point of cooperation between a company organizing an event and an event agency. Its quality largely determines whether the proposal you receive reflects the client's real needs and how smoothly the rest of the project runs. Even so, many organizers treat the brief as a formality: a document filled in superficially, just to start the bidding process as quickly as possible.

In fact, a well-prepared brief works in favor of both sides. It saves time, lets the agency make full use of its experience and creative potential, and gives the client a proposal grounded in the real assumptions of the event. The rule is simple: the more specifics you provide at the start, the more accurate the concept and the fewer misunderstandings later in the cooperation.

This article explains what a professional event brief is, what it should include, how to structure it and how many agencies it is worth sending your RFP to. It is written for people responsible for corporate events in marketing, HR and communications teams, as well as in management roles, who want the event they commission to head in the right direction from the very first contact with an agency.

What is an event brief?

An event brief is a concise document describing the basic assumptions of a planned event: who is commissioning it, for what purpose, for which audience, with what budget and by what date. It collects the information an event agency needs to prepare an initial concept and cost estimate, on the basis of which the details of delivery are then agreed.

The brief is a shared point of reference that both sides return to at every stage of the project. It defines not only what is to be delivered, but above all why: what business result the event is meant to bring. With this knowledge, an event agency stops guessing what the client expects and starts designing solutions that serve a specific goal.

A well-prepared brief serves three main functions. First, it translates business intentions into language that the team delivering the event can understand, across creative, production and logistics. Second, it is the basis for the initial cost estimate, without which it is impossible to reliably estimate costs or compare offers from different agencies. Third, it protects both sides: agreements put in writing reduce the risk of misunderstandings and become the foundation of the later contract and project settlement.

Why an event brief should be concise

A good brief is not a lengthy document. The name itself, from the English word “brief”, meaning short, points to its nature. An event agency does not need a multi-page history of the company or a detailed description of its organizational structure. It needs hard data and the context that will allow it to choose the right concept.

A brief that is too extensive and rigid has the opposite of the intended effect. An excess of detailed guidelines constrains the supplier and limits creative space. A practical rule worth adopting: be specific about goals and constraints, and flexible about solutions.

It helps to distinguish mandatory elements (those that must appear) from optional ones (nice to have). Such a hierarchy gives the agency clear priorities while leaving it freedom to propose specific solutions.

What must a good event brief include?

The list below covers the elements that belong in a professional event brief. Not all of them will matter equally for every event: different information will be key when organizing an intimate meeting for business partners than for a large-scale conference. Still, it is worth going through every point and consciously deciding which ones matter for your particular project.

Company presentation and business context

The starting point is a short profile of the company: the industry it operates in, its values, organizational culture and communication style. This information helps the agency understand the character of the brand and propose solutions consistent with it. An event for a technology company follows different rules than an event for a financial institution or a manufacturing business, with differences in tone, format, choice of attractions and language.

The context of the moment in which the event is organized also matters. A year of growth and celebrating success calls for a different approach than a period of restructuring, in which the event is meant to rebuild team engagement. A product launch, entry into a new market or a merger are business situations that determine the role the event is to play in the company's broader strategy. It is also worth mentioning the organization's internal customs and unwritten rules, which help match the character of the event to the client's specifics.

Event goal: the most important element of the brief

Defining the goal is probably the most important part of the entire document. Before any discussion of location, catering or attractions, you need to state precisely why the event is being organized at all.

The goals of corporate events vary widely: a company anniversary, training, employer branding, a sales review, a presentation of next year's strategy, business networking, product education or strengthening relationships with key clients. Each requires a different format and different creative solutions. Knowing the precise goal, the agency can propose the tools that will help achieve it most effectively. It is also worth stating in the brief how the success of the event will be measured, which allows you to assess its effectiveness objectively once it is over.

Target audience: who is the event for?

In the brief, include the estimated number of attendees, their age range and gender proportions (for example: mostly men aged 25 to 40, mainly from technical departments), job positions, how well the attendees know each other and the expected level of formality.

Different solutions work for a young, dynamic team than for a group of experienced business partners or senior management. People who have worked together for years have different needs than a group meeting for the first time. Groups with specific needs require particular attention: children, older people and people with disabilities, whose presence should be flagged already at the brief stage.

Event date and duration

The date is one of the most concrete elements of the brief, but it is worth giving it together with the range of flexibility. A fixed date dictated by the company calendar, for example an annual gala that always takes place in December, calls for a different approach than a situation in which the event can be moved by a few days to secure a more attractive venue. A wording such as this helps: “date sought between 10 and 25 September, Thursdays and Fridays preferred”.

Equally important is information about periods that must be avoided at all costs: management holidays, the financial year-end close or dates that clash with major industry events and could lower attendance. The brief should also state the preferred time of day and the expected length of the event. An all-day conference requires completely different organization than an evening gala or a two-day trip, and this affects not only logistics but also the availability and engagement level of attendees.

Event location

The venue largely defines the character of the whole event, so the brief should give clear guidelines in this area. Geographic preferences, such as a specific city, region or district, can result both from attendee accessibility and from the intended character of the event. A modern conference center creates a different atmosphere than a historic townhouse, an industrial loft or an outdoor space surrounded by nature.

A separate matter is the venue's technical requirements: availability of a stage and professional audiovisual support, a minimum number of parking spaces, a stable internet connection needed for online streaming, rooms that allow workshop-style work in smaller groups, and accessibility for people with disabilities. Defining these parameters precisely allows the agency to rule out venues that do not meet the basic criteria right away.

It is also worth stating whether searching for and booking the venue is the agency's responsibility, or whether the venue has already been chosen. If the client has proven venues from previous collaborations, or on the contrary places it wants to avoid, this information significantly shortens the search.

Scope of services expected from the agency

A clear definition of the scope of cooperation helps avoid misunderstandings at later stages of the project. Specify whether the agency is to handle the event end to end, from concept through production to delivery and settlement, or whether support is expected only in selected areas, such as multimedia, set design or venue sourcing. A mismatch of expectations here is a common source of later misunderstandings, so it is worth settling it already in the brief.

Your own ideas and an exclusion list

If the client has specific creative ideas, it is worth sharing them. Hints such as “the theme of the evening will be the 1920s” or “we want an interactive attraction that engages the audience” point the agency in the expected direction, even if they are only preliminary. An experienced supplier will develop them, refine them or propose more interesting variants.

An exclusion list, a clear statement of what the event should not include, is just as valuable and often even more important. For example: “please avoid aggressive sports competition, the team is mostly introverts”, “given the profile of attendees, we are skipping alcohol” or “we already have our own catering supplier”. The exclusion list also covers subcontractors, performers or forms of activity that did not work in the past. Stating these limits unambiguously saves both sides time and prevents the agency from proposing solutions that miss the mark.

Data and information from earlier events are also an invaluable source of knowledge: which activities met with enthusiasm from attendees and which were received coolly. If satisfaction surveys or collected feedback are available from previous editions, it is worth sharing them with the agency.

Technical and special requirements

Every event has specific requirements that are worth describing already at the brief stage. Online streaming or a professional recording of the event requires different technical infrastructure than a standard in-person meeting. An event app used for registration, voting or networking is an additional element that needs planning and testing. Special catering needs, including dietary restrictions, allergens and cultural or religious preferences, should also be defined unambiguously.

Confidentiality and data protection require separate attention. The brief should state whether the event is closed and requires special security procedures, and whether information covered by a confidentiality clause will be discussed during the meeting.

Materials and resources to use

The brief should state what materials the client provides to the agency. The basis is the so-called “brandbook”, that is, the brand guidelines containing rules for the logo, colors and typography. A library of high-quality company photos, video materials, product presentations or industry publications significantly speeds up work on the concept and visualizations.

Materials from previous editions of the event are also valuable: photos and video coverage. If company representatives are planning to speak, include basic information about the speakers: who will present, what stage experience they have and whether they need support in preparing their presentation. This lets the agency plan the right preparation and support.

Contact person and decision-making process

Efficient communication requires naming one, at most two, people responsible for contact with the agency. The more people involved in the direct exchange of information, the greater the risk of conflicting guidelines, misunderstandings and delays in decision-making.

The structure of the decision-making process and typical response times are important information. If some decisions require approval from a higher management level, the agency should know this so it can plan the schedule realistically. It is also worth stating fixed deadlines resulting from the organization's internal procedures, for example the need to send invitations a set time in advance or to present the concept at a specific board meeting.

Recommended structure of an event brief

Although there is no single standard template, organizing the brief in a logical structure makes it easier for the agency to read. The layout below works for most corporate events and can serve as a starting point:

• Company presentation: a short description of the organization: business profile, values, culture, communication style.

• Situational background: the reason for organizing the event and references to similar past events.

• Main project assumptions: business goal, expected date and preferred location.

• Target audience: number, profile and characteristics of event attendees.

• Delivery guidelines: scope of tasks for the agency, mandatory elements and exclusion list.

• Technical and special requirements: infrastructure, catering, confidentiality, internal procedures.

• Budget: an indicative range together with its nature and spending priorities.

• Deadlines and form of cooperation: expected timeline, contact person and decision-making process.

• Attachments: brand guidelines, visual materials, documentation from previous editions.

This structure organizes information in a way that mirrors how an agency works: from understanding the context, through the goal and audience, to specific requirements and the organizational framework. Not every point has to be expanded; for simpler events, some of them can be limited to a single sentence.

The most common mistake in event briefs

Hiding the budget is one of the most common and at the same time most harmful mistakes made in event briefs. It stems from the fear that an agency that knows the available amount will automatically propose a solution that uses all of it. This assumption is wrong: financial transparency works in the client's favor, not against it.

Without a budget range, an event agency has to design in a vacuum. As a result, it may propose an elaborate concept that exceeds the client's financial means many times over, which wastes both sides' time. Or it may play it safe and propose a solution that is too modest and will not meet the client's expectations.

An indicative range is enough, for example an amount per attendee or the total event budget.

It also helps to state spending priorities: the areas to which the client wants to allocate more of the funds. For some it will be spectacular set design, for others top-quality catering or inviting a well-known speaker. Knowing these priorities, the agency can manage the budget well, concentrating funds where they matter most.

Openness about the budget is one of the foundations of trust between the client and the agency. It lets the conversation focus on realistic and valuable solutions instead of wasting time on concepts doomed to rejection from the start.

How many event agencies should you send the brief to?

Preparing the brief is the first step. The next is deciding who to send it to. A widespread but mistaken practice is sending the request to as many companies as possible, in the belief that this will bring out the best offer. In reality, this approach does more harm than good.

The first problem is an excess of offers. A request sent to a dozen or so agencies generates so many proposals that comparing them reliably becomes practically impossible. Instead of making the choice easier, it makes it harder and lengthens the decision process.

The second, less obvious problem is the risk of inflated prices. Event agencies often use the same subcontractors, such as technical, catering or set design companies. When such a subcontractor receives several requests for the same date, it may raise its rates, which ultimately translates into a higher event cost for the client.

The best solution is to send the event brief to three, at most five, carefully selected agencies with documented experience and a good market reputation. Keep in mind that the lowest offer is not always the best one. Savings are sometimes only apparent and result from lower quality of service or event security, which can have serious consequences during delivery.

Sufficient lead time is also an important matter. For large events held at the peak of the season, in spring and in September and October, it is worth sending the request four to six months ahead, which lets you book the best venues and suppliers. Smaller events, such as intimate meetings at the company's office, usually require a lead time of four to six weeks.

Summary

A brief is not a bureaucratic duty but a tool that forms the basis of a reliable cost estimate and protects both sides from misunderstandings.

The key principles come down to a few points: be specific about goals and constraints while staying flexible about solutions, be open about the budget, be sensible about the number of agencies you send the request to, and allow enough lead time. A precisely defined goal, a well-described target audience and clearly stated requirements and exclusions are the elements that most determine how accurate the proposal will be.

A well-prepared brief is also a signal to the agency that it is dealing with a professional, prepared partner. Cooperation with such clients runs most smoothly, and its results most often exceed initial expectations.

Frequently asked questions about event briefs

How far in advance should you send a brief to an event agency?

For large events held at the peak of the season, it is worth sending the request four to six months ahead. This lets you book the best venues and suppliers. Smaller events, such as workshops or meetings at the company's office, usually require a lead time of four to six weeks.

Is sending a brief to an agency paid or binding?

As a rule, no. At most agencies, preparing an initial proposal and an indicative quote based on a brief is free and does not oblige the client to sign a contract. It is still worth confirming this individually at the first contact.

How many agencies should you send an RFP to?

It is recommended to send the brief to three, at most five, pre-selected agencies with documented experience. Sending the request to a dozen or so companies makes a reliable comparison of offers harder and can lead to inflated prices from shared subcontractors.

What should you do if the exact budget is not yet known?

It is enough to give an indicative range, for example an amount per attendee or the total event budget. Even approximate financial limits let the agency propose realistic and appropriate solutions instead of wasting time on concepts beyond the client's means.

How long should an event brief be?

A brief should be concise and focused on specifics. It is not about length, but about the quality and precision of information on the goal, target audience, budget, date and requirements. An overly extensive document limits the agency's creative space and does not serve the quality of the final proposal.

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