Accounting Firm

Black Mountain

International payroll, HR and employee-benefits provider helping businesses employ staff in many countries

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TrustList summary

Black Mountain runs payroll, HR and employee-benefits services for companies that employ people in more than one country. It says it covers over 165 countries and has worked in this field for more than 30 years, bringing the three services together so clients deal with a single provider.

What Black Mountain offers

People and HR: HR advisory, leadership development, global staffing and mobility, and employer-of-record hiring.
Payroll: local and multi-country payroll processing, plus payroll software.
Employee benefits: benefits consultancy, administration, company insurance broking and a benefits portal.
Corporate and financial services: support for businesses setting up and operating in new countries.
Software and technology: systems that sit behind its payroll and HR work.
Work visas: guidance for employers and new hires through visa applications.

Customers and markets

It serves growing businesses, from those building a first team to firms already spread across several regions and hiring across borders.

Key facts

Offices: Hong Kong, Singapore, the UK and the US
Coverage: more than 165 countries
Experience: over 30 years in the field
Note: filed as an accounting firm, but its work is payroll, HR and benefits

Summary written by TrustList from the business's own published information, Sep 2026.

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Categories & features

Black Mountain rankings

Black Mountain is ranked on 2 TrustList rankings: #2 on 1 and #5 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Black Mountain has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 2 rankings

#2of 12
Hong kong
It is the only one of the 12 here listing security and one of 2 here listing brokerage.
Of the 12 here, 8 also cover tax and 6 also cover accounting.
Behind Diacron Group Switzerland, ahead of Links International.
#5of 27
Singapore
It is one of 3 here listing cloud and one of 6 here listing outsourcing.
Of the 27 here, 6 also cover outsourcing and 5 also cover government; 4 also work in Asia and 3 also work in Hong Kong.
Behind Helmi Talib & Co, ahead of JDT Management Services Pte Ltd.