JetLeg Aviation Advisory
JetLeg Aviation Advisory
JetLeg Aviation Advisory is a boutique aviation consulting firm specializing in providing strategic support to business aircraft owners, law firms, financial institutions, leasing companies, and aircraft brokers. Our expert team delivers tailored solutions to optimize aircraft operations, manage assets efficiently, and navigate the complexities of the aviation industry, all to the sole benefit of the aircraft owner. JetLeg understands that the Aircraft is a tool and a mean of transport for the aircraft owner to succeed in their respective main business. JetLeg Aviation Advisory will contribute at best to support this.
About us
Experts
JetLeg Aviation Advisory was founded in 2021 by Martin Spiegl, a seasoned aviation expert with extensive experience in business and commercial aviation. His impressive career spans multiple facets of the industry, from aircraft operations and maintenance to pilot experience and technical advisory roles.
Martin Spiegl’s Expertise:
With a wealth of experience and a deep understanding of business aviation, Martin Spiegl leads JetLeg Aviation Advisory in providing unparalleled consultancy and strategic solutions for clients worldwide.
Services
References
aircraft transactions • operational consultancy
JetLeg Aviation Advisory has earned a strong reputation in the aviation industry by successfully partnering with business aircraft owners, law firms, financial institutions, leasing companies, and aircraft brokers. Our proven track record spans a wide range of successful projects, from seamless aircraft transactions to operational consultancy and strategic project management.
transactions
consultancy
management
We take pride in our contributions to the efficiency and growth of numerous aviation businesses, leveraging our expertise, unwavering dedication, and extensive industry network. Our past projects include:
We highly value the trust our clients place in us and are pleased to provide references upon request. Contact us today to learn more about our past successes and how we can support your aviation needs.
Let’s Work Together
Tell me more about your project
Connect with JetLeg Aviation Advisory today and discover how our expertise can help you navigate the complexities of business aviation. Let’s discuss how we can support your aviation needs and drive efficiency in your operations.

JetLeg provides customized strategies to enhance aircraft availability, ensuring that aircraft downtime is minimized and operational readiness is maximized. We develop improved charter utilization plans to optimize aircraft usage – synchronized with owners use – and generate additional revenue where applicable. Our expertise extends to efficient operational and maintenance planning, allowing for cost-effective and seamless aircraft upkeep. Additionally, we provide comprehensive policies and procedures to establish a structured and sustainable operation from an aircraft owner’s perspective, ensuring regulatory compliance and best practices are upheld at all times.
JetLeg offers comprehensive supervision for Aircraft Pre-Purchase Inspections, ensuring the best possible outcome whether you are buying or selling. We defend your technical rights as a seller or help you secure a flawless aircraft as a buyer, while complying with all conditions of the aircraft purchase contract. Additionally, we oversee major maintenance projects, including base maintenance events, engine overhauls, cabin refurbishments, and avionics upgrades. Our success is driven by a combination of deep technical expertise and commercial insight, along with our extensive network of contacts across all OEMs and key industry partners. This allows us to deliver seamless technical project execution, cost-effective solutions, and optimal results for our clients.
JetLeg Aviation Advisory provides expert guidance throughout the entire new aircraft build process, ensuring a seamless and efficient experience for owners. Our support begins with contract negotiations, helping clients secure favorable terms and specifications. We assist in selecting materials and optional features tailored to individual preferences and operational needs. Throughout the production process, we closely monitor and review the green aircraft build, ensuring adherence to quality standards and timelines. We oversee aircraft painting to ensure a flawless finish, manage interior installation with attention to craftsmanship and detail, and conduct a thorough final delivery inspection. Aircraft owners have the flexibility to choose the specific stages where they require our support, allowing for a fully customized advisory service that meets their unique needs and expectations.