About Global Shared Services

Over the years, we've leveraged our blue-chip background to build deep experience in the restaurant industry. Hundreds of independent restaurants, franchises and QSRs have benefited from our complete back-office solution—including corporate accounting, payroll services and financial analysis. Our unwavering commitment to precision, efficiency, and tailored solutions has established us as an indispensable partner for restaurants with an eye on growth and operational success.

“Greetings and welcome to GSS!”


We are delighted to have you explore our website and learn more about our Company. We began our journey as a captive shared services center for a Fortune 100 company. Today, we aspire to be the restaurant market's most exceptional financial services company, united by our shared values of partnership, client service, integrity, and excellence.


Drawing on our more than 20 years of experience working with the leading brands, our employees stand out as the best part of the Company. We are a talented group with advanced degrees and professional credentials such as CFAs, and MBAs. We also speak multiple languages. Please take a moment to meet some of the team members below. We hope you join our newsletter to stay in touch and hear our take on how the restaurant market is evolving.

Will Fleming
President of GSS

Meet some of our Global Leaders

Vanina Pesegna


Role: Director of Operations


Education: BS in Business Administration


Interests: Food, fashion, and travel.

Nick Stauff


Role: Head of Sales / Marketing / Partnerships


Education: BS in Business and Communications


Interests: Golf, fitness, and coaching youth sports.

Delfina Salles


Role: Sr. Associate


Education: BS in Business Administration


Interests: Reading, traveling, walking, and watching movies.

Leonardo Serra


Role: Sr. Associate


Education: BS in Accounting and CPA


Interests: Outdoors, sports, barbecues, and travel with family.

Frequently Asked Questions

  • What restaurant finance functions can GSS manage for my brand?

    GSS covers the full back-office stack for restaurants—outsourced bookkeeping and financial statements, managed payroll, and CFO-level analytics—delivered as modular Accounting, Payroll, and CFO service lines.

  • How does outsourcing to GSS lower my overhead yet lift accuracy?

    A near-shore delivery model and deep restaurant automation let GSS provide "above-market service, below-market prices," giving you cleaner books and real-time insight without the payroll burden of an in-house team or the premiums of a large CPA firm.

  • Is Global Shared Services (GSS) a restaurant payroll software provider?

    No, Global Shared Services (GSS) is not a software platform. Instead, it is an outsourced accounting and restaurant payroll services firm that leverages and integrates with leading restaurant payroll software and technologies like Restaurant365, QuickBooks accounting software, ADP, and various POS systems to deliver comprehensive payroll and accounting solutions tailored for the restaurant industry.

  • Can you integrate with Restaurant365 and the systems I already use?

    Absolutely. GSS is a Restaurant365 partner and routinely syncs with QuickBooks, ADP, Sage, Bill.com, and leading POS platforms, so your operational data flows straight into unified financial dashboards.

  • How fast can you get us live?

    Because the team focuses exclusively on restaurants, clients typically move from kickoff to first clean close in just a few reporting cycles. GSS's domain expertise drives markedly faster onboarding than generalist firms.

  • Where is the team located, and will time zones or language be an issue?

    Delivery is anchored in Buenos Aires (Argentina time aligns with U.S. business hours), supported by U.S. leadership and a bilingual staff that speaks multiple languages, ensuring real-time, clear communication.

  • How do you keep my payroll and financial data secure?

    GSS takes data protection very seriously, following strict international standards and walking each client through its security protocols during onboarding, so you know exactly how your information stays safe and compliant.

Are you ready to take accounting off your plate—and scale your business?

See how we can help.

Schedule a call