It's early days, around 9 months since we started with Sleek and so far it's been a good experience. Ali has been a great help with our company accounts and payroll taxes. He explains things clearly,... See more
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Sleek have just made my life so much easier. They are always on hand to solve problems, explain anything, & generally make self employment so much less stressful. Toby Denwood has always been so quic... See more
Company replied
Opened a business and worried about an accountant. Found sleek and it was a great onboarding process with affordable pricing. Even got an account whenever I wanted to message to ask for help, Jack was... See more
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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
Sleek is on a mission to make the lives of entrepreneurs, SMEs and investors easier, by removing the administrative hassles of running a business.
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.
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
3.9
Great
4K reviews
Replied to 97% of negative reviews
Typically replies within 48 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
WORST EXPERIENCE - AVOID AT ALL COST
I used sleek to create a Singapore based company. Initially all went well, but in the middle of the process, AFTER open the company they ask me to find another nominee while they initially approved the business. Then started the worst experience in my life : 2 months and still no refund despite all their promises. They keep asking for me to prove I did the payment, and do not accept THEIR OWN RECEIPT as proof of payment nor my bank statements. At every interaction, a promise to solve the matter... then nothing unless I chase them... only for them to ask for more proof !
The worst of the worst, the person who sold be the service is not taking any accountability.
Avoid at all cost. A clear SCAM !
February 16, 2026
Unprompted review
Reply from Sleek.com
Hi Y,
Johnathan from Sleek here, replying to your review. Apologies for the experience you’ve had, and thank you for writing this message. This is definitely not the level of service we aim to provide to our customers. As we’re unable to identify you using the information provided, I’d sincerely appreciate it if you could share your company name to the following email: resolve[at]sleek.com?
I look forward to hearing from you, and giving us the opportunity to make things right.
Johnathan - Customer Experience Team
Reply from Sleek.com
Hi Gala,
Thank you so much for the 5-star review! We're thrilled to hear you're pleased with our service, and we’re dedicated to continuing to support you with the same excellence. Your satisfaction is our priority!
Johnathan - Customer Experience Team
Reply from Sleek.com
Hi Simon,
Thank you so much for the 5-star review! We're thrilled to hear you're pleased with our service, and we’re dedicated to continuing to support you with the same excellence. Your satisfaction is our priority!
Johnathan - Customer Experience Team
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.
February 9, 2026
Unprompted review
Reply from Sleek.com
Thank you for taking the time to share your experience. I’m genuinely sorry that the outcome of the onboarding process was disappointing, especially when starting a first company is an exciting moment.
Because we operate in a regulated environment (company formation and accounting services), we are required to complete mandatory identity and compliance checks before we can act for any client. In a small number of cases we are not able to proceed, and when this happens we are legally restricted from discussing the specific reasons in detail.
Importantly, these decisions are not related to whether someone is a first-time founder, an experienced CEO, or the size of the business. The same regulatory requirements apply to every applicant and are assessed consistently.
Most of our clients are first time founders, small business owner giving a go to a business idea, or growing SMEs/Startups.
We understand that the lack of explanation can feel frustrating. However, once a determination is made, we must follow strict compliance obligations and cannot manually override or provide individual clarification. In these situations, the only appropriate step for us is to decline the engagement and issue a refund, which we did promptly.
We sincerely wish you the best with your venture and hope your company launch goes well.
Adrien - Sleek Support Team
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.
January 30, 2026
Unprompted review
Reply from Sleek.com
Hi Denise,
Thank you so much for taking the time to share your experience with us! This is exactly the kind of feedback we strive for, and hearing that we made your day truly brightens ours as well.
Your review will definitely help others feel confident in choosing us. We look forward to continuing to provide you with outstanding service for many years to come!
Johnathan - Customer Experience Team
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.
February 5, 2026
Unprompted review
Reply from Sleek.com
This review was used as a threat to extort a discount, as documented in an email where you stated: "It's either you receive 500 USD or you receive a negative review." We do not compromise our professional standards or pricing in response to review extortion.
The Details: While we regret the initial delay in connecting you with our HK team, your primary grievance was our refusal to lower our fees to your requested $500 price point. We prioritize compliance and quality service over manipulated ratings. We have submitted the email evidence of this threat to Trustpilot for removal.
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.
January 28, 2026
Unprompted review
Reply from Sleek.com
Thank you Jacqueline!
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.
January 28, 2026
Unprompted review
Reply from Sleek.com
Coding assessments are a standard part of our technical interview process to ensure we maintain the highest service quality for our clients. We do not use "free work" from candidates; we use standardized exercises to evaluate logic and problem-solving skills in real-time.
The Details: We appreciate your feedback, Nasbeer. While we understand that live coding can be stressful, it is the most reliable way for us to verify that our developers meet the technical demands of our projects. We use these assessments solely for evaluation, not for production, and we wish you the best in your future applications.
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.
January 27, 2026
Unprompted review
Reply from Sleek.com
Thanks Zuriel!
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!
January 23, 2026
Unprompted review
Reply from Sleek.com
Thanks Chris!
Reply from Sleek.com
Thanks Paul!
Toby was very responsive and efficient
Toby was very responsive and efficient. Clear and easy advice
January 16, 2026
Unprompted review
Reply from Sleek.com
Thanks Alexa!
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.
January 14, 2026
Unprompted review
Reply from Sleek.com
Hi Lea,
We're very much humans at Sleek! I'm responding to your message less than an hour after you've posted it - you're welcome to write to us at resolve@sleek.com and we'll take it from there.
I'd love to understand your situation in detail and take action to make this just a bad souvenir.
I look forward to hearing from you!
Jonathan - Sleek Support
Fast & Effecient
Fast, effecient and very helpful service, I would definitely recommend!
January 14, 2026
Unprompted review
Reply from Sleek.com
Hi Yinka
Thank you so much for taking the time to share your experience with us! This is exactly the kind of feedback we strive for, and hearing that we made your day truly brightens ours as well.
Your review will definitely help others feel confident in choosing us. We look forward to continuing to provide you with outstanding service for many years to come!
Johnathan - Customer Experience Team
Effective communication and…
Effective communication and action-oriented.
January 9, 2026
Unprompted review
Reply from Sleek.com
Hi Abraham,
Thank you so much for taking the time to share your experience with us! This is exactly the kind of feedback we strive for, and hearing that we made your day truly brightens ours as well.
Your review will definitely help others feel confident in choosing us. We look forward to continuing to provide you with outstanding service for many years to come!
Johnathan - Customer Experience Team
Reply from Sleek.com
Hi Ankit,
Johnathan from Sleek here, replying to your review. Apologies for the experience you’ve had, and thank you for writing this message. This is definitely not the level of service we aim to provide to our customers. As we’re unable to identify you using the information provided, I’d sincerely appreciate it if you could share your company name to the following email: resolve[at]sleek.com?
I look forward to hearing from you, and giving us the opportunity to make things right.
Johnathan - Customer Experience Team
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.
November 24, 2025
Unprompted review
Reply from Sleek.com
Hi Mr Mohammed Ahmed
Johnathan from Sleek here, replying to your review. Apologies for the experience you’ve had, and thank you for writing this message. This is definitely not the level of service we aim to provide to our customers. As we’re unable to identify you using the information provided, I’d sincerely appreciate it if you could share your company name to the following email: resolve[at]sleek.com?
I look forward to hearing from you, and giving us the opportunity to make things right.
Johnathan - Customer Experience Team
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.
January 1, 2026
Unprompted review
Reply from Sleek.com
Hi There,
Thank you so much for taking the time to share your experience with us! This is exactly the kind of feedback we strive for, and hearing that we made your day truly brightens ours as well.
Your review will definitely help others feel confident in choosing us. We look forward to continuing to provide you with outstanding service for many years to come!
Johnathan - Customer Experience Team
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.
December 19, 2025
Unprompted review
Reply from Sleek.com
Hi Amir Foul,
Johnathan from Sleek here replying to your review. Thank you for your feedback, and I apologise for the inconvenience caused. This is definitely not the experience we would want for our customers. Our team will be reaching out to you to work on a resolution. If you have any other concerns feel free to raise them directly via email at resolve[at]sleek.com. Please allow us to make things right.
Johnathan - Customer Experience Team
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.
December 15, 2025
Unprompted review
Reply from Sleek.com
Hi Ash!
Thank you for your feedback, and I apologise for the inconvenience caused. This is definitely not the experience we would want for our customers. Our team has since contacted you and we are working on a resolution. If you have any other concerns feel free to raise them directly via email at resolve[at]sleek.com. Please allow us to make things right.
Guillaume - Customer Experience Team
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