Built to Scale: Choosing the Right Operating Model for Your Private Equity Firm's Next Stage of Growth

In the first two articles of this three-part series for private equity executives, we explored how operational complexity evolves as private equity firms mature and why technology alone rarely resolves the challenges that come with expansion. As firms continue to evolve, another decision inevitably follows. How should operations be structured to support the business over the long term?

There's no single answer. The right operational framework depends on a firm's size, strategic plan, internal resources and operational priorities. While some firms continue building capabilities internally, others adopt co-sourcing models or fully outsource fund administration. Increasingly, firms are viewing these approaches not as permanent decisions, but as operating models that can evolve alongside the business.

Building operations internally

Many firms continue to manage fund operations internally, particularly those with multiple funds, established middle- and back-office infrastructure, and experienced finance and operations teams. Keeping responsibilities in-house provides direct oversight and allows firms to retain institutional knowledge while working closely with investment professionals and firm leadership. For organisations with the ability to support dedicated operational resources, an internal model can provide consistency and strong alignment across the business.

That model, however, requires ongoing investment. Each new fund, additional reporting obligations and evolving investor expectations increase the demands placed on internal teams. Supporting that growth often means hiring additional personnel, investing in technology and creating enough depth within the organisation to manage periods of peak activity, such as fund launches, quarter-end reporting and annual audits.

Internal teams also face the challenge of balancing execution with improvement. When experienced professionals spend most of their time meeting recurring operational deadlines, there's often less capacity to evaluate new technology, refine processes or prepare the business for its next stage of growth. For many firms, the question isn't whether an internal model can support growth, but whether it remains the most efficient approach as operational complexity continues to increase.

Extending internal capabilities through co-sourcing

Many firms eventually reach a point where they need additional operational capacity but aren't ready to expand their internal team. For those firms, co-sourcing can provide a practical middle ground. Rather than replacing an internal back-office team, co-sourcing extends its capabilities. Internal leadership continues directing priorities, managing investor relationships and maintaining oversight of the business, while an experienced operating partner supports recurring activities such as fund accounting, investor reporting, capital activity, cash management and other specialised operational functions.

One advantage of this approach is flexibility. Firms can access experienced professionals and established operational processes without making the long-term commitment of expanding headcount. As operational demands fluctuate, whether through a fund launch, increased fundraising activity, quarter-end reporting or an audit, additional resources can be brought in where they're needed most. That flexibility works best when responsibilities are clearly defined and the operating partner functions as an extension of the internal team rather than a separate service provider.

Like any operational approach, successful co-sourcing depends on clearly defined responsibilities and close collaboration between internal and external teams. When roles are well understood and communication is consistent, the operating partner becomes an extension of the organisation rather than a separate service provider. That allows firms to expand operational capacity while maintaining continuity across the business.

One middle-market private equity firm, for example, was preparing to launch its fourth fund while its internal team continued supporting three existing vehicles. Rather than expanding headcount before the new fund became operational, the firm adopted a co-sourcing model with Artex. Internal leadership remained responsible for investor communications, financial oversight and strategic decision-making, while Artex supported fund accounting, reporting and operational execution throughout the launch.

As fundraising progressed and the new fund became operational, the firm maintained reporting timelines, strengthened operational controls and reduced pressure on its internal team. Once the launch was complete, the operating model adjusted to the firm's ongoing needs without the challenges associated with hiring additional full-time resources to address a temporary increase in workload.

Fully outsourced fund administration

For some firms, outsourcing fund administration provides the most practical path to building institutional-grade operations without developing extensive internal infrastructure. This model is often well suited to first-time and emerging managers, firms launching a new strategy or organisations that prefer to keep internal teams focused on investment management, investor relations and business development while relying on an experienced administrator to support day-to-day operations.

For many emerging managers, this approach also accelerates institutional readiness. Rather than building operational infrastructure over several years, firms gain immediate access to experienced professionals, established processes and reporting capabilities that align with investor expectations from day one.

A fully outsourced model provides access to established technology, standardised processes and experienced professionals without the ongoing investment required to build and maintain a larger finance and operations function. As reporting requirements, regulatory expectations and investor demands continue to evolve, firms can leverage the administrator's operational infrastructure and specialised expertise while maintaining oversight of the business.

The effectiveness of a fully outsourced model depends on selecting a partner that understands the firm's investment strategy, investor base and long-term objectives. While responsibility for many operational activities shifts to the administrator, collaboration remains essential. The strongest relationships are built on regular communication, clearly defined responsibilities and a shared commitment to delivering accurate, timely information to investors and other stakeholders.

For many firms, a fully outsourced model allows leadership to dedicate more time to sourcing investments, supporting portfolio companies and raising capital, while relying on an experienced operational partner to provide the infrastructure needed to support continued growth.

An operating model that evolves with the business

There's no single operating model that defines institutional-grade operations. Whether responsibilities are managed internally, through a co-sourcing arrangement or by a fully outsourced administrator, long-term success depends on building an operational framework that evolves alongside the business.

At Artex, we work with private equity firms operating across each of these models. Some continue investing in internal capabilities while engaging us for targeted operational support. Others adopt a co-sourcing model that extends the capabilities of their existing teams. Some choose fully outsourced fund administration as they launch new funds or prepare for their next stage of growth. Each approach reflects different business objectives, available resources and operational priorities.

The most effective operating models are rarely static. As firms launch new funds, expand their investor base and respond to changing market expectations, they continue evaluating where expertise, technology and operational support create the greatest value. The right structure is not necessarily the one that worked in the past. It's the one that best supports where the business is going next.

Let's continue the conversation

Every firm's operating model is different, and there's rarely a single right answer. The best approach depends on your firm's structure, growth plans and operational priorities.

If you're evaluating how your finance and operations function should evolve, our team would be happy to discuss your current operating model, the challenges you're facing and the options available as your business continues to grow.

Read Part One: Every Private Equity Firm Reaches an Operational Inflection Point. Is Yours Approaching?

Read Part Two: Why Technology Alone Won't Build an Institutional-Grade Operating Model