About us

NNU Immigration is a transatlantic law firm practising exclusively in US immigration and nationality law from offices in New York and London.

Why choose NNU Immigration?

From offices in the US and the UK, we support corporate and individual clients across the globe and from the full range of industry sectors to meet their US immigration needs.

Choosing a law firm to represent you and your company is one of the most important decisions you can make. You want to work with a firm that is highly knowledgeable, professional and experienced in this specialist and highly complex area of law.

Our clients rely on us to deliver critical results and our focussed expertise allows for a comprehensive assessment and presentation of all US immigration options.

We’re passionate about helping clients achieve their business goals. We service Fortune 500 companies through to small and mid-sized firms with the same level of attention and sophistication.

We strive to be trusted partners to our clients, delivering a thorough analysis of every legal matter, clarity of legal advice and, most importantly, excellent service.

NNU Immigration

From offices in the US and the UK, we support corporate and individual clients across the globe and from the full range of industry sectors to meet their US immigration needs.

Choosing a law firm to represent you and your company is one of the most important decisions you can make.

You want to work with a firm that is highly knowledgeable, professional and experienced in this specialist and highly complex area of law.

Our clients rely on us to deliver critical results and our focussed expertise allows for a comprehensive assessment and presentation of all US immigration options.

We’re passionate about helping clients achieve their business goals. We service Fortune 500 companies through to small and mid-sized firms with the same level of attention and sophistication.

We strive to be trusted partners to our clients, delivering a thorough analysis of every legal matter, clarity of legal advice and, most importantly, excellent service.

Our team

Nita Nicole Upadhye

Founder & Principal Attorney

Iva Zemanova​

Legal Operations Director

A U.S. qualified immigration attorney, Robert has expertise in corporate immigration.

Robert Garafola

Partner

Maria Venanzi

Maria Venanzi

Attorney/Of Counsel

NNU MICHAEL

Michael Pyefinch

Senior Paralegal & Head of Paralegal Team

Nita Nicole Upadhye

Founder & Principal Attorney

Iva Zemanova​

Legal Operations Director

A U.S. qualified immigration attorney, Robert has expertise in corporate immigration.

Robert Garafola

Partner

Maria Venanzi

Maria Venanzi

Attorney/Of Counsel

NNU MICHAEL

Michael Pyefinch

Senior Paralegal & Head of Paralegal Team

Testimonials

“NNU Immigration has capabilities ‘unmatched within the UK’, providing US immigration advice to global businesses, entrepreneurs and HNW private clients. The group advises on the full range of corporate immigration matters, including employer-sponsored visas, investor visas, business visitor visas and green card status. Praised as ‘exceptionally knowledgeable and well-connected’, practice head Nita Nicole Upadhye has a diverse client base and expertise in both US and UK business immigration law.”

The Legal 500 2024

“Nita is exceptional in her knowledge of immigration policy and application processing. She always demonstrates a high degree of professionalism in her service delivery.” “Nita has an in-depth knowledge of US immigration having worked in this field for many years. She provides an exceptional level of service.”  

Chambers & Partners 2025

“I was first introduced to Nita after a recommendation directly from the US embassy. After successfully processing an extremely challenging H1B case for two ambitious creative entrepreneurs, NNU Immigration has continued to service our company throughout our growth with a 100% record of success, including H1Bs, O and E2 visas. The results speak for themselves, but it is also worthy of note that all cases are handled with warmth, personality, and a human touch.”

Jonathan, Media & Communications Company

“Nita and her team at NNU Immigration helped us to register our office in the US and to secure E-2 visas for key staff members. Their obvious in-depth knowledge of the various processes, their quick response to our numerous queries and their practical help in compiling our applications were impressive and reassuring. I would highly recommend them for their expertise and their friendly, unflappable approachability”

Celia, Market Research Agency

“NNU Immigration has capabilities ‘unmatched within the UK’, providing US immigration advice to global businesses, entrepreneurs and HNW private clients. The group advises on the full range of corporate immigration matters, including employer-sponsored visas, investor visas, business visitor visas and green card status. Praised as ‘exceptionally knowledgeable and well-connected’, practice head Nita Nicole Upadhye has a diverse client base and expertise in both US and UK business immigration law.”

The Legal 500, 2024

“Nita is exceptional in her knowledge of immigration policy and application processing. She always demonstrates a high degree of professionalism in her service delivery.” “Nita has an in-depth knowledge of US immigration having worked in this field for many years. She provides an exceptional level of service.”  

Chambers & Partners 2025

“I was first introduced to Nita after a recommendation directly from the US embassy. After successfully processing an extremely challenging H1B case for two ambitious creative entrepreneurs, NNU Immigration has continued to service our company throughout our growth with a 100% record of success, including H1Bs, O and E2 visas. The results speak for themselves, but it is also worthy of note that all cases are handled with warmth, personality, and a human touch.”

Jonathan, Media & Communications Company

“Nita and her team at NNU Immigration helped us to register our office in the US and to secure E-2 visas for key staff members. Their obvious in-depth knowledge of the various processes, their quick response to our numerous queries and their practical help in compiling our applications were impressive and reassuring. I would highly recommend them for their expertise and their friendly, unflappable approachability”

Celia, Market Research Agency

NNU Immigration is proud to have an affiliation with the US-based firm of Green & Spiegel to better serve our global clients.

Need specialist advice? Speak to our experts.

Need specialist advice? Speak to our experts.