Scaling a business is one of the most exciting and riskiest phases of entrepreneurship. The people you recruit to scale up your business will shape your culture, your customer relationships and your capacity to grow. CIPD data from 2024 puts the median cost per hire at £6,125 for UK employers, while REC data from 2024 puts the cost of a bad mid-manager hire at more than £130,000. The CIPD’s Labour Market Outlook for 2025 also reports that hard-to-fill vacancies remain a significant challenge for UK employers, which means a poor hiring decision wastes both money and scarce talent. With the Employment Rights Act 2026 introducing day-one unfair dismissal rights from October 2026, the cost of getting recruitment wrong is set to rise further. For women-led businesses, where every pound and every hour counts, hiring well is a strategic priority, not a luxury.

The Alison Rose Review of Female Entrepreneurship found that only one in three UK entrepreneurs is female and is tracking progress towards a 2030 target of increasing the number of female entrepreneurs by 50%; see the latest figures on our Women in Business: Key UK Facts page. Every strong hire in a scaling business helps close that gap. Early-stage recruitment is different from hiring into an established team. You are not filling a slot on an org chart; you are choosing people who will help define what your business becomes. That means character and values matter as much as competence. Before you start, review our Human Resource Toolkit for Small UK Businesses: 2026 Guide so your process is structured and fair. Then keep these five warning signs in mind as you recruit to scale up your business.

1. The habitual pessimist

Constructive challenge is essential in a growing business. There is a difference, however, between useful scepticism and a habitual pessimist who leaves every conversation feeling heavier than it began. In a small team, one person’s persistent negativity can distort decision-making, drain energy and make setbacks feel insurmountable.

During interviews, notice whether the candidate frames problems as opportunities to learn or as evidence that nothing works. Ask: “Tell me about a time a project did not go to plan. What did you do next?” If the answer focuses entirely on blame, bad luck or why the idea was doomed from the start, take note. You need people who can spot genuine risks without amplifying them. If you are concerned about a candidate’s mental health, ACAS and the NHS publish clear guidance on supporting employees; your first duty is to protect the wellbeing and momentum of the team you are building.

2. The self-serving high-flyer

Ambition is not the enemy. You want people who are driven, who want to develop and who will push the business forward. The danger comes when ambition is purely personal and zero-sum: someone who measures success only by what they gain, even at the expense of colleagues or customers.

In the UK, company directors have a duty under the Companies Act 2006 to promote the success of the company for the benefit of its members as a whole. While that applies formally to directors, the spirit matters for every early hire. Ask candidates what success looks like for the team, not just for them. Listen for language that celebrates shared wins. If every example is “I” and never “we”, or if they seem dismissive of support functions, ask yourself whether their personal ambition will align with your corporate aims.

3. The controller on your team

Controllers can be hard to spot at first because they often present as confident, experienced and decisive. Over time, however, they insist on signing off every detail, override agreed plans and quietly centralise power. In a scaling business, where speed and trust matter, this behaviour stalls growth and demoralises capable people.

Watch for interview answers that dismiss previous managers, claim sole credit for team outcomes or resist explaining how they delegate. A useful question is: “How do you decide what to do yourself and what to hand to others?” A controller will struggle to give a clear, trusting answer. Undermining autonomy can quickly become a serious management issue in a small team, so nip it in the bud at recruitment.

4. The envious comparator

Jealousy is rarely named in interviews, but it shows up in sideways comments about former colleagues, a reluctance to celebrate others’ wins or a habit of ranking people against one another. In a small business, this is corrosive. You need a team that shares information, covers for one another and genuinely wants the company, and each other, to succeed.

You can test for it by asking: “Describe a colleague who is excellent at their job. What do you admire about them?” A candidate comfortable with others’ success will answer warmly and specifically. Someone who is not will offer faint praise, change the subject or subtly undermine. Trust that signal.

5. The perpetual victim

Perhaps the most damaging hire is the person who never owns their part in a setback. Every failure has an external cause: the market, a colleague, a former boss, even the software. While systemic issues are real, a complete absence of personal accountability makes coaching almost impossible and can turn you into a scapegoat the moment things get difficult.

Use competency-based questions about transitions, gaps or project outcomes in their CV. Ask: “What would you do differently?” and “What was your contribution?” If you hear repeated attributions of blame elsewhere, be cautious. More than two or three examples should prompt you to weigh their skills carefully against the risk to your culture.

Recruit to scale up your business with care

No interview process is perfect, but a structured approach reduces the chance of a costly mistake. Define the values and behaviours you need before you advertise. Use structured questions, practical tasks and reference checks. Where possible, include a short paid trial or probationary period so you can see how the person works in practice. The Employment Rights Act 2026 introduces a statutory nine-month probationary period and day-one unfair dismissal rights from October 2026, so make sure your contracts and processes reflect the new rules. Our Employment Rights Act Employer Timeline: Key Dates to Know will help you stay on the right side of UK hiring rules.

Scaling a business is demanding enough without recruiting people who drain your energy, compete with your team or refuse to take responsibility. For women founders in particular, a single wrong hire can divert focus from revenue, funding and family. Choose partners who share your vision, bring constructive energy and help you build something bigger than any individual. When you recruit to scale up your business, hire for character as well as competence. Your future self, and your business, will thank you.

Your five action steps

• Write down the three values that matter most in your next hire before you write the job advert.
• Ask every candidate the same five competency-based questions so you can compare answers fairly.
• Check references specifically for teamwork, accountability and how the person handled setbacks.
• Review your contracts and probationary processes against the Employment Rights Act 2026 timeline.
• Run a short paid trial or skills task before making a final offer.