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Should I use an AI consultancy or build an in-house team?

Quick Answer

Use a consultancy for faster time-to-value, access to specialist expertise, and when your AI needs are project-based or exploratory. Build in-house when AI is core to your business strategy, you need continuous development, and can attract and retain top talent. Most organisations start with a consultancy to build initial capabilities and progressively develop internal expertise, creating a balanced approach.

Summary

Key takeaways

  • Consultancies offer faster delivery and specialist expertise without permanent headcount
  • In-house teams provide deeper integration with business processes and continuous iteration
  • Starting with a consultancy while building internal capability is the most common approach
  • Total cost comparison should include recruitment, retention, training, and management overhead

Advantages of Using an AI Consultancy

AI consultancies offer several compelling advantages. They provide immediate access to experienced AI professionals without the 3 to 6 month recruitment cycle for in-house hires. They bring cross-industry experience, having worked on similar problems across multiple organisations, which accelerates delivery and reduces common mistakes. They offer flexibility: you engage them for specific projects without long-term salary commitments. They provide an objective external perspective on your AI opportunities and challenges. For organisations starting their AI journey, consultancies deliver value much faster than building a team from scratch. They also help you understand what internal capabilities you actually need before making permanent hiring decisions.

Advantages of Building an In-House Team

An in-house AI team offers advantages that become more important as your AI programme matures. Deep understanding of your business processes, data, and culture that external consultants cannot fully replicate. Continuous availability for ongoing development, iteration, and support. Building lasting organisational capability and intellectual property. Lower marginal cost per project once the team is established and working across multiple initiatives. However, building an effective in-house AI team is challenging. Senior AI engineers command salaries of £70,000 to £130,000+. Recruitment is highly competitive. You need sufficient volume of AI work to keep the team productive. Management and leadership of AI teams requires different skills than managing traditional software development.

The Blended Approach

The most effective approach for many organisations is a blended model. Engage a consultancy for your initial AI projects to deliver value quickly and learn what works. Use the consultancy engagement to upskill internal team members through knowledge transfer. Progressively build internal capability for ongoing operation and routine development. Retain the consultancy relationship for specialist projects, architecture review, and capability surge when needed. This approach provides the speed of external expertise, the depth of internal knowledge, and the flexibility to scale effort up or down as needs change.

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FAQ

Frequently asked questions

A minimal in-house team of 2 to 3 AI engineers costs £200,000 to £400,000 per year in salaries alone. Add management, tooling, infrastructure, training, and recruitment costs, and the total is typically £300,000 to £600,000+ annually.

Insist on knowledge transfer as a core deliverable. Require documentation of all systems and processes. Have internal team members work alongside consultants. Build internal capability progressively so you can take over operational responsibilities.

Consider internal hires once you have validated your AI use cases and have a roadmap of ongoing development needs. If you have 2 or more years of continuous AI development planned, the economics start to favour internal hires for core capabilities.

Recruiting and onboarding an effective AI team typically takes 6 to 12 months. Building the team's understanding of your business and data adds another 3 to 6 months. A consultancy can deliver value within weeks while you build internal capability in parallel.

Yes. Some consultancies offer training and enablement engagements specifically designed to upskill your internal team. These typically involve working alongside your team on a real project, combining delivery with hands-on capability building.

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