
At1 Advisory empowers recruitment businesses to navigate the tides of growth and change. Our advisory solutions are built to help founders and leaders seize growth opportunities with confidence and agility.

About At1 Advisory
Jack Cornelius
Founder & Director
Recruitment leader, previous founding partner and Managing Director for one of the UK’s leading professional staffing agencies, and Group Director for a global recruitment PLC, Jack has built and scaled businesses across the UK and North America.
An accomplished leadership executive versed in building; world-class teams, exceptional growth performance, revenue expansion and market strategies. After 16 years of scaling recruitment businesses and achieving £65m of annualised sales across 100+ salesforce within a global PLC, Jack wanted to help founders and leaders achieve their successes.
Achieving and delivering exceptional growth standards, strategies and results, along with identifying and developing high calibre talent within the human capital space, came with an increasing passion to keep putting customers at the very heart of business, but in a simple and authentic way.
This led to Jack leaving his corporate gig and founding At1 Advisory, to support and serve recruitment founders and leaders who are starting up, scaling up, or launching new markets, in a more agile, natural and qualitative, partnership approach.
"Working as one, with At1"
At1 Advisory was founded on the belief that recruitment leaders want a business advisory who will cut through the noise and distractions of today’s world, to partner and solve modern business challenges, through an experienced lens and deep understanding of leadership, high-performance and business.
With a wealth of experience in leadership change and business expansion, At1 Advisory will advise, connect and guide leaders through their growth journey, to ensure that the right strategy and partnership is made, to enable your company to prosper.
At1 Advisory will achieve this by providing a genuine approach, executive expertise and a solution that is fit for your business, through a framework of executive guidance, strategic tools and growth initiatives.
Advisory & Partnership
Empowering Growth Through Executive Partnership
At1 Advisory
Talent Health Assessment
This free assessment is designed to offer a high-level bespoke report with actionable insights and expert guidance on optimising your talent and growth strategy. Based on your responses, At1 Advisory will identify key areas where targeted improvements can drive growth, enhance operational efficiency, and future-proof your organisation.

HOW I WORK
No two businesses are the same, neither is my approach.
I work closely with founders, business owners and leadership teams to understand where they are today, where they want to get to, and what may be standing in the way.
My role is to provide experience, perspective and constructive challenge - helping leaders make better decisions, solve complex problems and accelerate growth.
Whether through a one-off project, new service launch or ongoing advisory partnership, my focus remains the same: Practical advice. Honest conversations. Meaningful outcomes.
Clients
At1 Advisory is a UK based retained recruitment growth and leadership advisory.
At1 Advisory will advise and support founders and leaders through their growth journey, to enable your company to reach it's potential.
Here are a few examples of advisory projects successfully delivered.
Vision Advisory
Approached by founding team to establish 3-year growth strategy and reshape the identity of the business.
Achieved through reinvigorated the business' DNA, defining a Vision and Purpose, Philosophy and Values, and building a clear roadmap to success.
Engineering Recruitment Agency
Fractional CRO
Working with a recruitment founder to enable sales upskilling, revenue effectiveness and business expansion. Resulting in 130% NFI and 128% outbound activity increase in under 5 months.
Boutique Search Agency
Contracting Launch Advisory
Approached by a founding team of a leading perm only recruitment business to establish and support launching a contract offering.
Strategy built, infrastructure established, GTM designed, leadership team upskilled, revenue generated in less than 8 weeks.
Energy & Infrastructure Agency
Executive Advisor
Providing partnership to a founder with experienced, objective challenge around the decisions that really matter - where to invest, when to scale, and how to grow sustainably.
Automotive Recruitment Agency
Interim Regional SVP
Reporting into the CEO and charged with the 12 month turnaround of a failing recruitment business. Delivering 128% YOY NFI growth and reduced business loss by £600k per annum.
Global Recruitment PLC
Early-stage Advisor
Advising start-up founders on revenue leadership, market strategy, scaling decisions, thought diversity, strategic introductions and future direction of business.
UK-based Sales Recruitment Agency
What Our Clients Say
Who I Work With
I partner with ambitious recruitment founders, owners and leaders who are serious about growth.
Typically, they're successful but reached a point where proven experience, challenge and external perspective can help accelerate progress.
My clients are often:
- Founder-led businesses navigating growth and scale
- Recruitment leaders looking to improve performance
- Leadership teams seeking greater clarity, accountability and execution
- Businesses experiencing change, transformation or succession
- Organisations looking to strengthen their people strategy and leadership capability
Whilst every business is different, the common thread is a desire to build something exceptional.
My role is to provide practical advice, honest challenge and hands-on support that helps leaders make better decisions and achieve better outcomes.
Make Contact
If you or your organisation is interested in working with At1 Advisory, please email jack@at1advisory.com or complete the contact form below, and a connection will be made.




