TL;DR
- Bro culture is an informal term for a workplace dominated by a tight, usually male, in-group, where bravado, banter and socialising decide who belongs and who gets on.
- It harms the people outside the group, and the organisation: good ideas go unheard, capable people leave, risks go unchallenged and “banter” can amount to unlawful harassment.
- Culture follows what leaders do and tolerate. Change comes from clear standards, acting on behaviour whoever is involved, fair processes for hiring and promotion, and inclusive ways of working and socialising.
Every workplace has friendships, and most have in-jokes. That is healthy. The trouble starts when one tight group sets the tone for everyone: whose jokes are laughed at, who gets invited, whose ideas are heard and who is promoted. People outside the group learn to keep quiet, or to leave.
This is often called bro culture. This article explains what the term means, lists 15 warning signs, sets out the harm and the legal risk, and gives leaders eight practical steps for changing it.
Cultures shift when people can speak up and be heard. See how New Dynamics continuous feedback gives every employee a regular voice.
This is general information. The legal points are based on guidance for Great Britain, and they are not legal advice.
What is bro culture?
Bro culture is an informal term for a workplace culture dominated by a close-knit, usually male, in-group. Belonging depends on fitting in with the group's style: confident, competitive, fond of banter and keen on socialising together. The term is often associated with technology companies, sales floors and trading desks, but the pattern can appear anywhere.
Three clarifications keep the idea useful.
- It is about behaviour and power, not about men. Plenty of men dislike it and are excluded by it. People of any sex can take part in it.
- Camaraderie is not the problem. A team that enjoys each other's company is a good thing. The problem is an in-group whose habits decide who is respected and who advances.
- It is usually unintended. Few people set out to exclude others. Cultures like this grow through who gets hired, what gets laughed at and what leaders let pass.
15 warning signs of bro culture
Who belongs
- A recognisable inner circle, which shares interests, humour and background, holds most of the influence.
- Hiring for “culture fit” produces new starters who resemble the people already there.
- People outside the circle describe feeling like guests. They may include women, older colleagues, carers, quieter people and people from different backgrounds.
How people talk
- Banter with an edge: jokes about appearance, sex, sexuality, accents or age, defended with “it's just a laugh”.
- Interrupting and talking over others is normal, and the loudest voice usually wins.
- Ideas from outside the circle are ignored, and later welcomed when someone inside repeats them.
- People who object are told that they are oversensitive, or “not a team player”.
How people get on
- Decisions are made, and relationships built, in the pub, on the golf course or in a group chat that not everyone is in.
- Stretch projects and promotions go to those whom leaders socialise with.
- Long hours and constant availability are treated as proof of commitment.
- Aggressive behaviour from high performers is excused because of their numbers.
What happens when something goes wrong
- Complaints about behaviour are minimised, delayed or turned back on the complainant.
- People warn new colleagues privately about whom to avoid.
- Risk-taking and rule-bending are admired, and caution is mocked.
- Turnover is noticeably higher among people outside the dominant group.
One or two of these do not make a bro culture. A cluster does.
Why it does harm
To people. Those outside the group spend energy on fitting in, or on staying invisible. They are heard less, developed less and promoted less. Some are harassed.
To decisions. A group that shares the same views, and that treats challenge as disloyalty, can make confident mistakes. Google's research into its own teams found that psychological safety, feeling “safe to take risks” such as asking a question or offering a new idea, mattered most for team effectiveness. We describe it in why teamwork is important.
To hiring and retention. Word travels. Capable people may decline offers, or leave early, and the organisation ends up recruiting from a smaller pool.
To health. The UK Health and Safety Executive's Relationships standard expects organisations to promote positive behaviours at work and to deal with unacceptable behaviour such as bullying.
To the organisation's legal position. This deserves a section of its own.
“It's just banter”: the legal risk
Acas is direct on this point in its guidance on sexual harassment: “What some people might consider as joking, ‘banter’ or part of their workplace culture can still be sexual harassment.”
It defines sexual harassment as “unwanted behaviour of a sexual nature” that has violated someone's dignity, or created an intimidating, hostile, degrading, humiliating or offensive environment for them. Its examples include sexual remarks about someone's body or appearance, sexually offensive jokes, and displaying or sharing sexual images.
Acas adds a point that matters for cultures in particular: “Sometimes there can be a culture of behaviour that's not specifically aimed at one person – such as sharing sexual images. Someone could still make a complaint of sexual harassment in this situation.”
Employers have duties here. Acas says that, by law, all employers “must take reasonable steps to prevent sexual harassment of their workers”, under a law that came into effect on 26 October 2024, and that they “cannot wait until sexual harassment happens”. It also flags that the law changes again from 30 October 2026, after which employers will be liable unless they have taken all reasonable steps. Check the current guidance for the position when you read this.
Harassment related to other protected characteristics, such as race, age, religion or sexual orientation, is also unlawful. Our plain guide to the definition of discrimination at work explains the terms, and our article on workplace jokes offers five tests for humour that is safe.
How to change a bro culture: eight steps for leaders
Culture is what leaders do, reward and tolerate. A values poster will not shift it. These will.
- Find out what it is like outside the circle. Use an anonymous survey, listening groups and exit interviews, and compare the experience of different groups. Our inclusion survey questions and exit interview questions can help.
- Set clear standards of behaviour, in plain words, with examples. See our code of conduct examples.
- Act on behaviour, whoever it is. The moment that matters most is when a top performer crosses the line. What happens next tells everyone what the real rules are.
- Make reporting safe, with more than one route, and protect people who speak up. See how to make an open door policy real.
- Fix hiring and promotion. Advertise roles, define criteria in advance, use structured interviews and mixed panels, and record reasons. Replace “culture fit” with “what would this person add?” Our article on unconscious bias explains why process matters.
- Change how people socialise and decide. Vary events, hold them in working hours and do not centre them on alcohol. Take decisions in meetings that everyone concerned can attend, and write them down.
- Run meetings so that everyone is heard. Go round the table. Stop interruptions. Credit ideas to the person who first raised them.
- Hold managers to account. Include behaviour and inclusion in how managers are assessed, and look at turnover, promotion and survey results by team.
Leaders in the in-group have the most influence. When one of them says “That is not funny”, or “Let her finish”, the norm changes faster than any policy can change it.
If you work in a bro culture
- Trust your reading. If you feel excluded or uncomfortable, you are probably not imagining it.
- Keep a record of incidents: dates, what was said or done, and who was present.
- Find allies. Others, inside and outside the dominant group, often feel the same.
- Raise specific behaviour with your manager, another manager or HR, and describe its effect on your work.
- Use the formal route for harassment, bullying or discrimination. You should not have to tolerate it.
- If you are in the in-group, use your position. A quiet word from a peer often does more than a complaint.
- Decide what you are willing to accept. If nothing changes, leaving can be the right decision, and it is no failure on your part.
Common mistakes
Treating it as a few bad apples. If the behaviour is widely tolerated, it is a culture.
A training session, and nothing else.
Banning fun. The aim is a workplace where everyone can enjoy themselves, and where nobody is the joke.
Hiring a few different people into an unchanged culture, and then losing them.
Protecting the star. Every exception rewrites the rules.
Blaming the people who complain.
Frequently asked questions
What is bro culture?
Bro culture is an informal term for a workplace dominated by a close-knit, usually male, in-group, where bravado, banter and socialising decide who belongs and who gets ahead. People who do not fit the group's style tend to be heard less and promoted less.
What are signs of bro culture at work?
Signs include an influential inner circle, hiring for sameness, edgy banter defended as a joke, interrupting, decisions made in the pub or in private chats, promotions linked to socialising, aggressive behaviour excused in high performers and complaints that go nowhere.
Why is bro culture harmful?
It excludes capable people, silences challenge and ideas, drives turnover, damages wellbeing and creates legal risk. Behaviour described as banter can amount to unlawful harassment, and employers have duties to prevent it.
Is workplace banter harassment?
It can be. Acas says that what some people consider joking, banter or part of their workplace culture can still be sexual harassment, if it is unwanted behaviour of a sexual nature that violates someone's dignity or creates a hostile or offensive environment.
How do you change a bro culture?
Find out how people outside the in-group experience work, set clear standards, act on poor behaviour whoever is responsible, make reporting safe, use structured hiring and promotion, make socialising and meetings inclusive and hold managers to account.
Is bro culture only about men?
No. The term describes behaviour and power, not a sex. Many men are excluded by it and dislike it, and people of any sex can take part. The problem is an in-group whose habits decide who is respected and who advances.
Your next step: ask who is not in the room
- Look at your last three social events, and your last three big decisions. Who was there, and who was not?
- Ask two people outside your usual circle how they experience the team.
- Choose one habit to change this month, such as how meetings are run.
- The next time a joke lands badly, say so.
For a clear policy on behaviour that protects everyone, read and download our anti-harassment policy guide. The guide is free to read, and the PDF uses our short download form.
Want every employee to have a regular, safe way to be heard? Book a New Dynamics demo and bring your current approach. You can also email contact@new-dynamics.com.
