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Home    /    Solutions    /    Advisory Solutions    /    Risk Advisory    /    Internal Audit    /    Outsourced and Cosourced Internal Audit Services
Strengthen internal audit coverage with support that fits your organization.

Outsourced and Cosourced Internal Audit Services

Organizations often need internal audit support when risk priorities expand, internal teams are stretched or knowledge is needed to complete the audit plan. Weaver provides outsourced and cosourced internal audit services for audit committees, public companies, regulated organizations and growing businesses that need flexible support to strengthen controls, manage risk and maintain audit coverage. Whether you need a fully outsourced audit program or targeted support for your existing team, Weaver can help design and execute an internal audit approach aligned with your organization’s goals.

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How Internal Audit Supports Risk Management and Stronger Controls

Many organizations struggle to keep their internal audit programs aligned with changing risks, resource constraints and increasing expectations from leadership, regulators or audit committees. Without the right structure and support, internal audit can become reactive instead of helping the organization identify risk, improve controls and strengthen performance.

Internal Audit Provides Independent Insight into Risk and Controls

An effective internal audit function helps organizations evaluate whether key risks are being identified, monitored and managed appropriately. Beyond reviewing compliance requirements, internal audit helps assess the effectiveness of internal controls, identify process inefficiencies and provide leadership with objective insights that support informed decision-making.

By taking a proactive approach, organizations can strengthen governance, improve operational performance and address emerging risks before they become larger issues.

A Strategic Approach to Internal Audit

At Weaver, we view internal audit as more than a series of audits or compliance activities. Our professionals work to understand your organization’s objectives, risk profile and operating environment to help develop internal audit programs that provide meaningful insights and support long-term business goals.

Whether serving as a fully outsourced internal audit function or working alongside your existing team, we help organizations focus resources on the areas of greatest risk while building stronger controls, improving audit coverage and supporting continuous improvement.

Why Weaver
 

Why Choose Weaver for Outsourced and Cosourced Internal Audit Support?

Weaver combines internal audit knowledge with practical experience across risk, controls, compliance and industry-specific business challenges. Our team works with organizations to understand their risk profile, governance structure and operational priorities before recommending an outsourced, cosourced or staff augmentation model. This helps clients receive the right level of support without adding unnecessary complexity to the internal audit function.

Our professionals have experience supporting organizations across a variety of industries and regulatory environments, helping leadership teams and audit committees address evolving risks while maintaining effective governance and oversight. Leveraging technology-enabled delivery through platforms such as Fieldguide, we enhance transparency, streamline engagement workflows and provide greater visibility throughout the internal audit process, creating a more efficient and collaborative experience for clients.

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Services

Outsourced Internal Audit Services

Outsourced internal audit services provide organizations with fully managed internal audit coverage delivered by an external provider. Organizations without in-house internal audit capabilities can still reap the benefits of a well-designed program that strengthens controls and helps identify risks related to errors or fraud. Weaver’s outsourced internal audit services allow organizations of all sizes to take full advantage of knowledgeable internal audit professionals and subject-matter resources across diverse industries.

Our professionals are dedicated to assessing risk, executing internal audits and working with management to help drive sustainable improvements. They can assist with understanding overall organizational performance and how processes and internal controls ultimately impact that performance.

Weaver can provide fully outsourced internal audit services either long-term or short-term, as a ramp while you build internal capacity or a bridge in times of transition.

Cosourced Internal Audit Services and Projects

Cosourced internal audit services allow organizations to retain ownership of their internal audit function while leveraging external professionals for additional experience, capacity or project support. Our cosourced and project-based internal audit services are designed to complement your existing internal audit program while preserving your team’s leadership and institutional knowledge. Weaver works alongside your internal audit team to help address evolving risk priorities, expand coverage or support periods of increased demand without disrupting established processes. Rather than replacing your function, we help internal audit departments focus on the areas they want to own while Weaver supports the areas where additional capacity, technical knowledge or focused support is needed.

Whether you are navigating a focused audit initiative, responding to emerging risks or seeking additional capacity to execute your audit plan, our professionals integrate seamlessly with your team and governance structure. We help internal audit leaders do more with the resources they have by completing audit plans, addressing compliance requirements and maintaining coverage without overextending internal teams or overengineering the function.

As part of a cosourced internal audit engagement, Weaver can also provide advanced capabilities such as data-enabled audit techniques, industry-informed risk perspectives and support for complex or nonroutine audit needs. This flexible, right-sized model allows internal audit resources to remain agile while maintaining consistent oversight, accountability and alignment with your organizational goals.

Staff Augmentation

Internal audit staff augmentation provides temporary access to experienced audit professionals who supplement existing teams without replacing internal leadership or oversight responsibilities. Staff augmentation provides internal audit leaders with flexible access to additional capacity or focused skill sets without fully outsourcing the program.

Weaver supports organizations by embedding experienced internal audit professionals into existing teams to help address resource constraints, execute audit plans or support specific initiatives that require deeper technical knowledge. This approach allows internal audit departments to retain ownership and continuity while gaining the support needed to complete more work, meet internal audit compliance requirements and focus internal resources on priority areas. Staff augmentation is particularly effective during periods of transition, peak workload or heightened regulatory demand, offering a right-sized solution that remains fit for purpose.

 
Our Perspective
Looking Beyond Compliance to Drive Better Decisions
"Internal audit is most effective when it helps organizations look forward, not just backward. A strong internal audit function provides insight into emerging risks, strengthens controls and helps leadership make more informed decisions."
– Greg Englert, Partner, Governance, Risk and Compliance Services

Frequently Asked Questions about Outsourced and Cosourced Internal Audit Services

What are outsourced internal audit services?

Outsourced internal audit services provide organizations with a fully managed internal audit program delivered by an external provider. Organizations often outsource internal audit when they need independent audit capabilities but lack the resources or experience to maintain a dedicated in-house team. An outsourced provider can help assess risks, evaluate controls, execute audit plans and provide insights that support governance and compliance. Weaver helps organizations design and execute internal audit programs aligned with their risk profile, operational priorities and business objectives.

What are cosourced internal audit services?

Cosourced internal audit services allow organizations to retain ownership of their internal audit resources while leveraging external professionals for additional experience, capacity or project support. In a cosourced model, the organization’s internal audit team remains responsible for leadership and oversight while external resources help address skills gaps, expand coverage or support specific projects. This model provides flexibility without increasing permanent headcount. Our team works alongside internal audit teams to provide scalable support that helps organizations navigate evolving risks and complete audit plans efficiently.

Should I choose outsourced or cosourced internal audit services?

Outsourced internal audit relies primarily on an external provider to manage and execute internal audit activities, while cosourced internal audit supplements an organization’s existing team. Organizations that outsource internal audit typically rely on an external team to perform most internal audit activities. In a cosourced model, internal leadership remains in place while external professionals provide additional resources, knowledge or project support. Weaver helps organizations determine which model best aligns with their goals, resources and risk management needs.

When should an organization consider outsourcing internal audit?

Organizations should consider outsourcing particularly during periods of growth, organizational change, increased regulatory expectations or when establishing a new internal audit program. It also provides access to key skills without the need to build a larger internal team. Weaver works with organizations to establish right-sized internal audit programs that support effective risk management, governance and internal controls.

When does staff augmentation make sense for internal audit?

Staff augmentation makes sense when an internal audit team needs additional capacity or skills without permanently expanding headcount. Organizations often use staff augmentation during peak audit cycles, large projects, employee turnover or periods of increased regulatory scrutiny. This approach helps teams address short-term needs while maintaining internal ownership of the program. Weaver experienced professionals can integrate with existing teams to support audit execution, special projects and temporary staffing needs.

What is the role of internal audit in risk management?

Internal audit helps organizations identify, assess and address risks while evaluating whether controls and processes are operating effectively. An effective internal audit program provides independent insight into risk management, governance and control activities. It helps organizations understand where risks exist, whether controls are functioning as intended and where improvements may be needed. Weaver approaches internal audit as more than a compliance exercise, helping organizations strengthen controls, improve performance and support informed decision-making.

 
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