I was referred to Sleek UK by my partner as I had a bad experience with a number of accounting firms. The team have been really friendly even after my silly questions and I’ve found everything to be s... See more
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Company details
- Accounting firm
- Accounting Software Company
- Business administration service
- Business management consultant
- Business-to-Business service
- Tax advisor
About Sleek.com
Written by the company
Since our launch in 2016, we've helped hundreds of startups and businesses manage their accounting, tax and business compliance needs with our top cloud accounting solutions thanks to our talented team of accountants. With offices in the UK, Singapore, Hong Kong and Australia, we can act for clients across all of these countries.
Along with accounting and bookkeeping services, our expert accountants can help with tax relief, namely applications for SEIS/EIS Advance Assurance as well as R&D Tax Credits for businesses working in research and development.
We have quality accountants that cover a variety of industries including e-commerce, property, crypto and more, so you can ensure you're getting the right accountant to manage your books.
If you're interested in finding out more about our accounting services and how we can help your business, please visit sleek.com/ for further information.
We are also part of the Sleek Tech Group, a Singapore based organisation founded in 2017 with over 340 employees in 17 countries. Sleek leverages its proprietary technology to serve 450,000+ customers globally and to support their back office operation. Services include financial management, bookkeeping, CFO services and business insurance.
Contact info
4th Floor, 205 Regent Street, W1B 3HH, London, United Kingdom
- +44 3333 444 213
- sleek.com
Replied to 100% of negative reviews
Typically replies within 48 hours
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Great for established CEOs, terrible for first-time founders
After reading the overwhelmingly positive reviews and seeing so many CEOs praise Sleek’s management and service, I was genuinely excited to start my first limited company with them.
Unfortunately, my experience was the complete opposite. Despite all the praise around how smooth and professional the process is supposed to be, my application was rejected at the formation and AML stage with no meaningful explanation and no opportunity for manual review. I was not asked to clarify anything or resubmit documents. The process simply stopped and I was refunded.
What makes this more frustrating is seeing so many success stories from established directors while Sleek could not even get the basics right for a first time founder. If their automated AML system does not approve you, there appears to be no real support or escalation path, regardless of how willing you are to cooperate.
The contrast between the public image and the actual onboarding experience could not be clearer. Sleek may work well for experienced CEOs with a long history, but for new founders the process is rigid, impersonal, and disappointing.
Being excited to launch your first company and then being turned away at the formation stage is not something I would wish on anyone.

Reply from Sleek.com
Highly recommend, friendly and efficient
I was referred to Sleek UK by my partner as I had a bad experience with a number of accounting firms. The team have been really friendly even after my silly questions and I’ve found everything to be straightforward. Had a few minor issues uploading my documents which was more user error on my part, but really happy from the initial call with the sales rep up until this point!!! Fingers crossed this continues.
I contacted about opening a company in…
I contacted about opening a company in HK.
I got replies from the SG team instead.
Took them time to get the HK team to reply.
The teams don't communicate between them.
They did not offer a solution customised to my needs.
They are not interested in taking money.

Reply from Sleek.com
Sleek made everything incredibly easy…
Sleek made everything incredibly easy and stress-free. Great communication, fast service, and very helpful support throughout. Truly a reliable platform for business setup and management
Mirza Dewan Ali

Reply from Sleek.com
Wonderful company
I have been with Sleek accountants for more than 9 years. They have been absolutely amazing. They are always happy to help, patient, answer questions, give great advise and also quick on responding and following up. 5 stars always.

Reply from Sleek.com
They ask us to code during Interviews…
They ask us to code during Interviews and after getting the code they will tell us you are not selected. If they want to check coding ability they can use hacker rank and all. If the developers in the company dont know to code dont blame on the capabilities of the candidate. They dont know what the candidates have done in their life.

Reply from Sleek.com
100% good at their work.
They are really very good and professional. They sort sort out our problems with unbelievable ease. I have been using them for over 5 years now, and very happy to continue with them.

Reply from Sleek.com
Very prompt
Very prompt, efficient, reasonable and transparent pricing, and they reviewed all of my information, and sent over clarifying questions to finalise my tax position for the year. I'll be sticking with them for my next filing!

Reply from Sleek.com
Toby was very responsive and efficient
Toby was very responsive and efficient. Clear and easy advice

Reply from Sleek.com
so slow to respond
so slow to respond. the whole thing seems automated and they don't really seem to care about speed or quality.

Reply from Sleek.com
Fast & Effecient
Fast, effecient and very helpful service, I would definitely recommend!

Reply from Sleek.com
Effective communication and…
Effective communication and action-oriented.

Reply from Sleek.com
Refund Promised, But Never Received
I engaged Sleek Accountants’ services on 21/11/2025 and attempted to formally cancel the following day. I received no response to my cancellation request, so I called in to explain the situation.
During that call, I was told by a member of staff that a full refund would be honoured, as no work had been carried out on my behalf.
Since then, I have not received any funds back. Instead, I have only been issued a credit note, which does not constitute a refund. Despite repeatedly requesting urgency and contacting the company multiple times by phone and email, I am consistently told that the refund has been “processed”, when it clearly has not — no funds have ever reached my bank.
At this point, it has been over a month, and the same assurances are repeated without any actual payment. Issuing a credit note without transferring the money owed is not acceptable, and being told repeatedly that a refund has been processed when it hasn’t is extremely frustrating.
I would not recommend this service based on my experience.

Reply from Sleek.com
Divya and the Sleek team are an…
Divya and the Sleek team are an excellent team for my small business. They are extremely patient and supportive, even when I miss checking emails. I truly appreciate working with Sleek.

Reply from Sleek.com
Not professional at all
Not professional and a waste of time :
Prior to submitting the incorporation request, the provider fails to clearly disclose all required steps, procedures, and compliance obligations related to the incorporation process. However, once the request is submitted and payment is made, a prolonged and opaque due diligence process begins. This process appears to be conducted without a clear or structured understanding of proper due diligence practices, resulting in excessive delays, repeated requests, and a lack of procedural transparency.
When concerns are raised regarding these unreasonable timelines, services are abruptly terminated without any logical or substantive justification, with such termination being solely based on their Terms and Conditions. This approach is inconsistent with professional standards and raises serious concerns regarding transparency, competence, and good-faith business conduct.

Reply from Sleek.com
Poor service
Poor service
May be this varies by region, but the UK service has been rather disappointing. Fast with sales, slow and poor with service during incorporation + assistance in account opening. Documents are blank / unsigned, services paid for not delivered.

Reply from Sleek.com
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