Customer Stories
How Sleek Gained 3x More Qualified Leads over WhatsApp

With Adrien Barthel, Co-founder and Chief Growth Officer of Sleek


More sales inquiries


More qualified leads


NPS score



Use Cases
Channels & Integrations
No items found.
Migrate agents to a communication platform with better UI UX
Switch customer communication from web chat to WhatsApp
Obtain a higher quality of leads from sales inquiries
Onboarded Sleek’s agents in all four countries to
Connected WhatsApp API for each market to its private Workspace
Capture genuine and high-quality sales leads
A success story: Sleek tripled its qualified leads in Singapore and Hong Kong by switching sales inquiries to WhatsApp and leveraging's automation and analytics stack

Sleek is an all-in-one digital platform that provides startups and small and medium enterprises (SMEs) with administrative services like company registration, governance, accounting and tax compliance management.

Its founders launched the company in Singapore in 2017 as an antidote to the slow pace of paper-based processes. It enables businesses to digitally and remotely sign legal documents, incorporate companies and file requests to a company secretary 24/7, among others. Sleek has expanded to Hong Kong, Australia and the United Kingdom.

The Problem

To communicate with prospective clients, Sleek incorporated web chat on its website via a service provider. However, agents found the chat interface confusing, which slowed down their response times.

Web chat also produced too few high-quality leads. Prospects often faked their contact details and agents wasted too much time trying to follow up with them.

As most of its competitors were talking to prospects on WhatsApp, Sleek was keen to try moving sales conversations to WhatsApp instead of using web chat. It needed a messaging platform with a more user-friendly interface. It also wanted a better vetting process to verify contact information and generate more qualified leads.

The Solution

While searching for a suitable business messaging platform, Sleek’s management came across’s case studies. They signed up for a free trial account, tested its use cases on the platform and subscribed to the service for all four markets.

Private Workspaces were Set Up for Each Market

To maintain operational autonomy and privacy, Sleek assigned each market an independent Workspace or sub-account within the platform. The sales and business development teams for each country could access their respective Workspace and its messaging inbox.

Management and agents alike find ’s user interface intuitive and easy to navigate. They rate the user experience as significantly better than that of their previous solutions provider. Additionally, has advanced functionality like chat automation and customizable inboxes.

WhatsApp API was Connected to Drive Sales Chats and Capture Leads

Sleek engaged a WhatsApp partner to set up dedicated WhatsApp API accounts for each country and connected them to their respective Workspaces. It then added WhatsApp chat links and QR codes to its website to drive inquiries. Prospects who click or scan these enter a WhatsApp chat with Sleek’s agents.

This ensures automatic and high-quality lead capturing. Prospects tend to use fake email addresses when filling out contact forms on web chat. However, WhatsApp enables businesses to capture contacts’ WhatsApp profile names and authentic phone numbers.

Furthermore, web chat requires agents and prospects to be online simultaneously to communicate. Agents also lose chat records if they clear their cookies.

WhatsApp allows users to respond when convenient so consultations can take place over time, which is crucial for a complex business like Sleek. A persistent chat history on ensures agents can refer to previous interactions for context if necessary.

Chat Routing, FAQs and Away Messages were Automated

In Singapore, UK and Australia, Sleek’s default language is English. Sleek Hong Kong, however, communicates in two of the region’s most widely spoken business languages: English and traditional Chinese.’s Workflows chat automation makes managing this easier. For the Hong Kong market, a Workflow routes prospects who click on the WhatsApp chat link to the English or Chinese-speaking teams according to the language they selected for browsing the website. It then assigns chats round-robin to an agent for even lead distribution.

Across all markets, most sales inquiries comprise frequently asked questions. Sleek’s agents use canned responses to provide quick and standardized replies to these.

Another Workflow sends an out-of-office reply when prospects message after business hours so they are never left hanging. Instead, they receive a WhatsApp template message with a link to a meeting scheduler to book a consultation.

Conversations and Agent Performance are Monitored and Analyzed maintains a permanent record of customer interactions across their lifecycle. This qualitative data helps Sleek track the success of its sales efforts and improve its customer service over time.

Additionally, performance metrics such as agent load, first response time and resolution times are monitored in real time. The Reports Module also measures long-term trends such as peak chat hours so managers can make informed decisions about resource allocations.

“Our playground is mainly in the APAC region and has been an invaluable partner in growing our customer base and relationships here. WhatsApp is an ideal channel for these tech-savvy markets and it has transformed the way we interact with customers. We look forward to strengthening our foothold in the industry with” — Adrien Barthel, Co-founder and Chief Growth Officer of Sleek

The Results

Switching its sales conversations over to instant messaging proved to be a tremendous success in Singapore and Hong Kong, where WhatsApp is immensely popular. Sleek noticed that clients tend to maintain relationships over WhatsApp in the long term, even sharing receipts and files for bookkeeping purposes over the channel.

The company reports 3.5x more sales inquiries over WhatsApp than it used to have over web chat. Prospects are less likely to drop off as they can instantly chat with agents instead of filling out a contact form first, removing friction from starting a chat. Sleek records 3x more qualified leads now as it acquires authentic contact information.

With an intuitive UI and automated chat routing and assignment, agents are able to respond to contacts within 2 to 3 minutes of a message. Quick, high-quality responses from its sales teams have earned Sleek an impressive net promoter score (NPS) of 68%.

That said, clients’ enthusiasm for WhatsApp in Australia and the UK is not as high. Sleek is reexamining its strategy and is contemplating adding Facebook Messenger to as an alternative for both markets.

Related Stories

Conversational Sales
Promotional Messaging
How Qobolak Used Broadcasts to Double Student Lead Conversions
Conversational Support
Behind Apna's Success: 30-Minute Resolution Times Unveiled