Nudge for the nation or the bottom line? An analysis of consulting vs. in-house in behavioural science

The fast progression of behavioural science in industry settings has led to professionals carving out their careers in different settings, from specialised consultancies to in-house taskforces and teams. While these paths often intersect, each has its own distinct landscape that offers unique rewards and challenges. One promises breadth and variety, whereas the other promises depth and long-term impact.

There comes a point in many consultant careers, usually somewhere between the fifth stakeholder meeting and the third time explaining what “choice architecture” means, when you stop and wonder: Is the grass greener on the other side? For those in consultancy, the other side usually means the promise of in-house life: less travel, more influence, and maybe even a desk plant. On the flipside, in-house practitioners are often drawn to the allure of consulting, which is known for a faster pace, broader impact, and the chance to escape the confines of a firm’s priorities and bloated processes. 

In reality, both are compelling and flawed. It’s about understanding the trade-offs to figure out where you’ll actually thrive. 

Consulting offers variety, but sometimes at the expense of depth

Let’s start with the consultant’s playground: variety. Consulting throws you into new problems at a dizzying pace; one week you’re advising a telecoms company how to reduce customer churn, the next you’re wading into behavioural diagnostics for a retail bank. Whilst intellectually stimulating and rich, the same variety that sharpens your toolkit can dilute your depth. This is often because projects often end just as they’re getting interesting, and impact can start to feel like something you only ever measure in slides.

In contrast, in-house roles let behavioural scientists go deep, with the opportunity to learn the culture, the people, and the unspoken politics. As strategies evolve, fail, and succeed over time, in-house behavioural scientists get to play the long game to see change take root and come to fruition. However, sometimes being part of a small team or being a lone behavioural scientist can mean wasting time and energy trying to convince people that your work is useful rather than actually doing it, and internal resistance is rarely rational.

The lifestyle trade-offs are real

The differences between consultancy and in-house work extend beyond projects to everyday lifestyle. Consulting can be exciting and energising. It can also be exhausting. Late nights, some travel, and the subtle art of learning a new client’s acronyms by Tuesday can drain even the most enthusiastic practitioners. For early-career behavioural scientists who thrive on variety, it can be the perfect training ground, but if you’re craving structure, in-house life offers a more sustainable rhythm, albeit with its own pressures. Expectations can be high, resources limited, and the need to demonstrate return on investment constant.

Collaboration versus autonomy

Consultancies typically provide built-in communities of behavioural scientists. Teams operate in project groups, specialist pods, and knowledge networks that foster learning and collaboration. 

In-house roles can feel more isolated. Behavioural scientists may be one of only a few people, or even the only person, advocating for behavioural thinking within an organisation. For some, this autonomy is empowering. For others, it can feel lonely without peers who share the same expertise.

The question isn’t which path is better, but which suits you

Ultimately, neither path is inherently better. They simply demand different strengths. Consulting rewards adaptability, breadth of thinking, and the ability to quickly navigate complex problems. In-house work rewards patience, political awareness, and the ability to build long-term influence. Many practitioners move between the two during their careers. Some begin in consultancy before transitioning into industry. Others build deep organisational expertise and later seek the pace and diversity of consulting work.

So if you find yourself wondering whether the grass is greener elsewhere, the better question may not be where the grass is greener, but why you want to move. Are you seeking variety or ownership? Speed or depth? A community of behavioural scientists or the opportunity to be the one introducing the science into the room?

Wherever you land, behavioural science has an important role to play on both sides of the desk.