Head of People and Culture
About Greenhouse
Greenhouse is a purpose-driven communications agency working at the forefront of climate action. We partner with organisations and individuals tackling the climate crisis – whether that’s coalitions reshaping entire systems, innovators scaling new technologies, or activists holding power to account. Our role is to help these stories be heard, understood and acted on.
We are proudly B Corp certified and committed to using business as a force for good – balancing people, planet and profit.
We have recently embarked on an important new phase, having transitioned to employee ownership in 2025. This shift reflects our belief that shared ownership builds a stronger, more accountable and more motivated organisation – and creates long-term value for both our people and our mission.
The Role & Opportunity
This is a pivotal role at a defining moment. Over the past five years, we’ve grown to a team of 50 across London and Bristol. Now, we’re focused on how we grow well – deepening our culture, strengthening leadership, and equipping our people to think and act more entrepreneurially as an employee-owned business.
As Head of People & Culture, you’ll play a central role in shaping that future.
This is not just about running HR operations. It’s about building an environment where people do their best work, grow with confidence, and feel genuine ownership of the agency’s success.
You’ll work closely with the CEO and Leadership Team to lead change, strengthen engagement, and embed a culture that is values-led and high-performing.
What You’ll Focus On
Culture, Engagement & Employee Ownership
- Act as a guardian and champion of our culture as we embrace employee ownership.
- Help embed a mindset of shared responsibility, transparency and long-term thinking.
- Strengthen engagement through meaningful communication, feedback loops and inclusive practices.
Learning, Development & Entrepreneurial Growth
- Design and deliver a learning strategy that builds confidence, capability and leadership at all levels.
- Equip teams to think more entrepreneurially – commercially aware, proactive and accountable.
- Coach managers to lead effectively, have better conversations, and support performance and growth.
- Create clear development pathways that retain and grow talent.
People Strategy & Leadership Support
- Partner with the Leadership Team to shape and deliver a future-focused people strategy.
- Provide trusted counsel on organisational design, change management and team development.
- Support leaders to build high-performing, inclusive teams aligned to our mission and values.
Talent & Operations
- Oversee end-to-end recruitment, ensuring we attract and hire people aligned to our purpose.
- Lead performance and development processes, ensuring they are meaningful and effective.
- Maintain and evolve policies and practices in line with best practice and legislation.
- Oversee employee relations with professionalism, care and sound judgement.
HR Operations
- Ensure the core HR infrastructure runs smoothly and reliably.
- Manage employee relations matters, including absence, disciplinary processes, grievances and family leave.
- Ensure compliance with all relevant employment legislation, safeguarding and right-to-work requirements.
- Manage and optimise HR systems and people data, providing clear insight to support decision-making.
- Support payroll and benefits administration in partnership with external providers where needed.
Wellbeing, Inclusion & Responsibility
- Champion wellbeing, ensuring people feel supported and able to thrive.
- Lead and evolve our DEI efforts, with clear goals and accountability
- Ensure our people practices reflect the standards we expect of ourselves as a purpose-driven business.
What We’re Looking For
- Strong HR generalist experience, ideally within an agency or fast-paced, people-driven environment.
- Experience or a genuine interest in employee ownership.
- A track record of delivering impactful learning and development initiatives.
- Confidence working with senior leaders and influencing at a strategic level.
- A pragmatic, thoughtful approach to HR – balancing people, performance and business needs.
- Strong understanding of employment law and HR best practice.
- Passion for building cultures where people feel motivated, supported and able to grow.
- Alignment with our mission and an interest in climate, sustainability and social impact.
Who You Are
- You build trust quickly and communicate with clarity and empathy.
- You’re proactive and solutions-focused, with sound judgement.
- You’re comfortable navigating change and helping others do the same.
- You care deeply about people but are not afraid to challenge when needed.
- You bring energy, curiosity and a genuine desire to make things better.
Salary & Benefits
- £65–75k per annum depending on experience and location
- 4 or 5-day working pattern considered
- Hybrid working (2–3 days in office, core hours 10am–4pm, 3pm Friday finish)
- 25 days holiday + birthday + Christmas closure
- Slow travel additional leave
- Bupa cash plan
- Ethical pension (Aviva: 7% employer / 5% employee)
- £100 annual creative development budget
- Cycle to work scheme + EV car club
- Office perks including breakfast and organic fruit
How to Apply
We’re committed to building a diverse and inclusive team and strongly encourage applications from underrepresented backgrounds. To help us track the background of our applicants, we would appreciate all candidates completing a short survey along with your application. This will also help us to offer you the appropriate support if you are successfully invited for an interview.