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Who We Are

Operators and execution partners to startups, scale-ups, and investors.

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We work inside growing companies when scale starts to strain. When teams expand, markets multiply, and delivery fragments. We make sure the business holds as it grows.

Our experience spans countries, industries, and company stages, from founder-led teams to complex, scaled organisations.

What We Do

We design, build, and help implement the changes businesses need to scale.

We work directly with founders and leadership teams to diagnose problems, workshop solutions, guide decisions, and shape how the business operates as complexity grows.

This is not strategy handed over in a deck. We work alongside the business as an embedded scaling partner, helping teams align, execute, and adapt in real time.

Through targeted workshops, fixed sprints, and acceleration programmes, we help solve the operational problems that slow startups down, strengthening the scaling engine across leadership, teams, and execution.

GregStool

Founder Led

Greg Tennant is a founder, operator, and execution specialist.

Over the past 20 years, he has worked across startups, scale-ups, and global enterprises, helping companies redesign how they run as they grow.

His experience spans the US, Europe, Asia-Pacific, Africa and the Middle East, across both founder-led environments and complex, scaled organisations. He has led operating model redesigns, execution and agile transformations, and large-scale delivery across business units, markets, and functions, working from the C-suite through to frontline teams, in industries including financial services, automotive, hospitality, retail, oil and gas, and technology.

 

His work sits at a consistent inflection point: when growth increases complexity and execution starts to break.

This shaped a core belief that underpins andExecute: strategy sets direction, but how the business runs determines whether it delivers.

Today, Greg works directly with founders, CEOs, and investors to fix execution and help companies scale beyond borders, and make it work.

Run Better. Scale Smarter.

SERVICES

FOR INVESTORS

INSIGHTS

ABOUT

How can we help you scale?

Tell us what you’re trying to solve. We’ll help you think it through.

Offices & Locations

Lisbon, Portugal & Tallinn, Estonia.

We operate across EU and globally.

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Results shared by &Execute and Greg Tennant are illustrative and not guaranteed. Outcomes depend on your business, decisions, and execution. We operate in Portugal, Estonia, and across EU and global markets, providing strategic and operational support. Nothing on this site constitutes investment, financial, or legal advice. Examples are for informational purposes only. All content and frameworks are the intellectual property of &Execute and Coexecute OÜ. Unauthorized use or reproduction is prohibited.

*Logos represent organisations where Greg Tennant has gained direct working experience throughout his career. These are not clients of andExecute. No endorsement, affiliation, or partnership with andExecute is implied. All trademarks remain the property of their respective owners.

Copyright © 2026 CoExecute OÜ. All rights reserved.​​​​​​​

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