Chief of Staff

The Opportunity

SoFlow Service Partners is a buy-and-build investment platform in the environmental services sector, backed by Strada Partners, and co-founded by Sam and Ollie Hörbye. Following the acquisition of The Green Spark Group in April, we are uniting regional leaders across drainage, tankerage, pump maintenance and environmental compliance, into a single national champion, serving a deep network of multi-site commercial customers. Already trusted by blue-chip brands across the UK, we are past eight figures in revenue and growing through a combination of organic growth and acquisition, with the aim of reaching £100m+ in revenue over the next five years.

Your job is to make the machine behind that growth work: model the deals we do, integrate the businesses we buy, and help rewire how the Group runs so that scale becomes our strategic advantage.

If you thrive in environments where there’s more to build than to inherit, this role will be the most impactful of your career.

Why This Role Matters

As part of our growing investment in building a durable, well-run platform, we are looking for a Chief of Staff to work directly with SoFlow’s Co-Founders Ollie and Sam Horbye and help build the operating engine behind our growth.

This role is for an operator who is equally comfortable building a LBO model alongside rolling up their sleeves inside a newly acquired business. You should be self-directed and multidisciplinary, able to own the numbers behind an acquisition, lead the hands-on integration of its systems and processes, and map and improve how the wider Group runs. You will work closely with the leadership teams of our subsidiaries and travel regularly to their sites across the UK.

The ideal candidate combines operational experience in a live business environment alongside experience working in one which prizes analytical and executional rigour, for example, in private equity, transaction services and investment banking, or a comparable operating role, and brings a rare blend of financial depth, excellent operating ability and genuine ease with people.

What You’ll Accomplish in the First 12–18 Months

We hire against a Mission, Outcomes and Competencies framework. What follows aren’t responsibilities to manage; they’re the outcomes the founders and Board will judge you on.

Be the Founders’ leverage

• Turn two founders’ intent into motion: take the priorities and convert them into work streams with clear owners, deadlines and relentless follow-through.
• Own the operating rhythm of the Group; board meetings, leadership cadence, the packs and pre-reads so decisions get made once and executed properly.
• Take the ambiguous, high-stakes problems off their desk and bring back a recommendation, not a list of questions.
• Be the person they trust to run the thing they can’t get to, and earn more of that trust every month.

Own the numbers behind every deal

• Build the LBO and acquisition models the Group bets on: returns, leverage, debt capacity, integration cost, with the rigour that lets the Board move on a deal with conviction.
• Run the analytical spine of the deal process: diligence, valuation, sources and uses, and a clear-eyed read on whether a target is as good as it looks.
• Turn models into judgments. Surface the two assumptions that actually matter, not the twenty that don’t.
• Hold the platform and its subsidiaries to plan, and be the first to say when something’s off.

Make every acquisition actually work

• Own the hands-on integration of each business we buy — finance, reporting, CRM, IT, operations so, it joins the Group cleanly and fast, not eventually.
• Build the integration playbook from scratch and sharpen it with every deal, until a first hundred days that used to take improvisation takes a checklist.
• Stand…