About Us

Mercurius Advisory Services (MAS) provides comprehensive suite of accounting, bookkeeping and taxation services to small, medium and big businesses. Since 2008, we are in the business and flourishing our services with more passion and proficiency by developing longstanding partnership, commitment and trust with our clients. Our team of professionals having a global expertise in managing any complex situation while providing the finest results. We are ProAdvisor on QuickBooks, Xero and many accounting softwares to stay advance and divergence in the bookkeeping and taxation world. We ensure decent communication during any project discussion, so the result becomes accurate as per our client requirements. Also, we acknowledge quickly to better assist you with reaching definite outcome for you and your business. We admit the only purpose in our firm is to serve high-quality work, and our goal is to grow every day!

Why choose us

Certified accounting firm with over a decade of experience!

  • Certified with all major cloud based accounting software.
  • 400+ clientele across the globe.
  • 99% client satisfaction rate.
  • 250+ tax returns filed every year.
  • 3.5 million Transactions processed each year.
  • 15+ industries solutions including e-commerce, real estate and law firm etc.
  • Associated with the SME, Big business companies having annual turnover approx. $7 million.

Our Clientele

Our widespread clientele around the world


  • Executed PAN India projects with 30+ clients
  • Registered with PCAOB, USA
  • Audited 1st US listed company
  • Professional strength crosses 50 with 100+ clients


  • Became ISO 9001:2008 & ISO 27001:2008 certified
  • Became a member firm of TIAG, getting a firm foothold in Western Countries
  • 17 countries from Africa added to International practice


  • Professional strength crosses 125 with 500+ ongoing clients
  • Global footprints in countries across US, Europe & Asia Pacific, Middle East, Canada and Australia
  • Added 4 new business streams:
    • International bookkeeping and accounting services
    • Tax services for US, UK, Australia, Canada and Singapore
    • Payroll services
    • Paralegal services

Accounting Softwares

Our Clients


Siddhartha and team are all stars! A+.They took my credit card, bank statements, and Excels and uploaded onto QBO, then kept my books for 1.5 years.

Justin Seidel

Buffalo Niagara Apartments LLC, New York.

Mercurius Advisory is one of the best company due to their prominent results. We are grateful that we found such a team of professionals who helped us in projection of cash flow and manage our books of accounts very well. They are highly recommended due to their prominent and efficient results. We are able to focus on our goals and meet the dynamic challenges that arise within the industry.

Basil Elotol

TripHop Inc., California.

It has been a pleasure working with Mercurius Advisory Services so far. They have helped us with our back office operations as we have grown our business and we will continue to use their services to take our business growth even further.

Amanda Blum

Life Inc. Pooled Trust.

Mercurius Advisory Services has the finest team of professionals who have helped us throughout in getting our work done. They have been efficiently managing our books of accounts, preparation and filing of tax returns, since the starting of our business. They have helped us to meet the growing challenges within the industry. They have given us qualitative results and we would recommend their services to all.


Inspiring Adventures Limited, Douglas.

Great Firm! Worked with Mercurius for several years. Always willing to take time for you and always saving us time and money with their efforts. Great place to build a relationship. I would highly recommend them to anyone looking to upgrade their accounting, tax, and financial services.

AJ Fusco

Principal, Iconic Communications, New York

I wanted to also make sure that i didn't miss the opportunity to tell you what a fantastic job you and your team are doing. Sincerely appreciate the great service.

David Donnell

Community Invest LLC, Kansas

Manvi and Sid at Mercurius Advisory Services have been an absolute pleasure to work with. From the start, they have been dedicated to producing quality accounting work for us. We are very grateful for their understanding of our goals, attention to detail, ability to meet deadlines and dependable response times. This combination of qualities is a very rare find. We feel like we have struck gold.

Andy Yang

Houseables, California

I honestly can't recommend these guys enough: if you're looking for personal contact, a thoroughly professional and efficient approach, and a team who really know there stuff, then whether it's bookkeeping of full accountancy for yourself or your business, this is the team for you!

Ed Dowding

Iagree, Manchester

Mercurius Advisory Services has given me world class financial support. I count on them for support daily. Having this critical part of my business being watched by the professionals at MAS has allowed me to focus on growing my business and taking it to the next level.

Tyler Fraser

United Priority Distributors, California

© 2019 Mercurius Advisory Services Pvt Ltd.