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Sleek
Singapore Sleek provides digital company incorporation, accounting, tax filing, and corporate secretarial services in Singapore, Hong Kong, Australia, and the UK.
Flatfee
Locations
United States
Employees
11-50
Year founded
2022
Featured in expert reviews
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Best 38 Local Payroll Processing Providers in Australia: Reviewed in 2026
About
Flatfee Corp offers flat-rate legal, administrative, and compliance services for companies hiring internationally. The firm supports global hiring with contract management, document preparation, and labor compliance tools. Its structured pricing model simplifies legal and HR processes for distributed teams.
Accounting and Bookkeeping 30%
Entity Setup and Business Incorporation 25%
Payroll Processing 20%
Legal and Compliance Services 25%
Technology/IT 45%
Professional Services 30%
E-commerce/Startups 25%
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via Trustpilot
S
Simone
Nov 3, 2025
“Blew 449 USD for nothing... Don't go anywhere near this company. You will loose your money.”
via Trustpilot
A
Anonymous (Aircon)
Aug 25, 2026
“I use flatfeecorp.com to register trademark Aircon underwear in USA, they are very professional and price is really good.”
via Trustpilot
J
Julia
Aug 25, 2026
“I used several companies and this is the top notch. Satisfied with the cost and the service”
via Trustpilot
K
Kalpita
Jan 1, 2026
“Reply was prompt and responsive”
via Trustpilot
A
Alfred
Dec 6, 2025
“Reply was prompt and responsive”
via Trustpilot
A
Anonymous (vendor)
Aug 25, 2026
“As a vendor working with FlatFee I feel incredibly well-supported. The system is easy to learn and use.”
via Trustpilot
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Anonymous
Aug 25, 2026
“I had a great experience with Flatfee. No hidden charges, no surprises—just solid work.”
via Glassdoor
I
IP Attorney
Aug 25, 2026
“I really enjoy the working environment in Flatfee and so glad to collaborating with them”
via Glassdoor
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Anonymous Contractor
Jul 29, 2023
“They are highly disorganized, they sell products to clients BEFORE having the service ready, and the whole culture company is awful.”
via Glassdoor
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Anonymous Employee
Aug 25, 2026
“The CEO takes pride in turning this company into a complete waste of potential, wasting all the talent of highly educated employees.”
