
TL;DR - What is the Best WhatsApp Business Solution Provider?
Choosing the right WhatsApp BSP depends on your business size,s strategy and needs. Each platform serves a different stage of growth — from small WhatsApp teams to enterprises managing multiple channels. Here’s how the top providers compare.
Respond.io: Best for scaling B2Cs that need omnichannel AI Agents, advanced automation and integrations.
WATI: Small to mid-sized businesses focused mostly on WhatsApp and Instagram.
Trengo: Small to medium-size B2C businesses that require basic integrations and automation for doing support over chat.
Sleekflow: Businesses with low chat volumes and limited automation and support needs.
Bird: Mid to large businesses needing SMS + WhatsApp at scale, with flexible automation and API control. Best for technical teams.
There are numerous WhatsApp Business Solution Providers (BSPs) on the market, making it hard to choose the right one. Without the right information, you might end up with a provider that doesn’t fit your business needs — or worse, pay unnecessary costs.
If you're new to BSPs, we recommend starting with WhatsApp BSP: Everything You Need to Know for a quick introduction. But if you're ready to compare options and make an informed decision, we’ll walk you through 5 popular WhatsApp Business Solution Providers and how to choose the best one for your business.
How to Choose the Best WhatsApp Business Solution Provider
We asked the COO of respond.io, Iaroslav Kudritskiy, what the main things are to look for when choosing a WhatsApp Business Solution Provider. In his experience, these are the three points that matter the most.
Factor | Why It Matters | What to Check |
1. Reliability | You need fast, stable, always-on messaging and calls | - High platform uptime |
2. Usability | A good platform makes messaging easy to manage and scale | - CRM integration |
3. Pricing | High costs or rigid plans hurt growth | - No hidden markups |
1. Reliability & Stability
When customer calls and messages are core to your business, reliability is non-negotiable. You need a BSP that offers high uptime, fast message delivery and minimal disruptions — especially during peak traffic or critical moments.
Look for providers with a proven track record of 99.9% or higher uptime, as specified in their Service Level Agreement (SLA).
True reliability also depends on a responsive support team that’s available when you need it most. Support via live chat and call tends to be more effective than via e-mail.
2. Tooling & Usability
A good WhatsApp BSP should give you extra tools to help you get the most out of the WhatsApp API.
Most platforms offer a messaging inbox. Other than that, some offer features like CRM integrations, automation builders, AI features and broadcast capabilities.
For long-term success, ensure your BSP also includes analytics and reporting, as well as a way to view and manage the customer lifecycle (the stage of the sales funnel they are in).
3. Pricing & Flexibility
Choosing a BSP with transparent, flexible pricing is crucial if you want to make the most of your budget.
Look for providers that offer pass-through pricing on WhatsApp per-message charges, meaning you only pay what Meta charges, with no hidden markups.
Ideally, the BSP should give you room to grow with value-based pricing plans. Avoid rigid pricing models that force you into paying for features you don’t need or restrict your ability to scale.
With these three points in mind, we’ll help you decide between 5 of the most popular WhatsApp BSPs in the market.
Turn conversations into customers with respond.io's official WhatsApp API ✨
Manage WhatsApp calls and chats in one place!
What is the Best WhatsApp Business Solution Provider?
Respond.io, WATI, Trengo, SleekFlow and Bird are among the most well-known BSPs. We’ll compare their features, reliability, and overall value to help you choose the best option for your business.
Respond.io
Respond.io is a preferred Meta Business Partner built for medium to large businesses. It excels in omnichannel communication with advanced automation, AI agents and enterprise-grade realiability and security.
Pros
Supports all major channels, including WhatsApp, TikTok, Instagram, Messenger, VoIP and custom channels.
Compatible with the WhatsApp Business App (WhatsApp coexistence)
Supports WhatsApp Business Calling API
Broadcast on WhatsApp, Telegram, Messenger and more
Run Meta ads with Meta Conversions API to optimize campaigns
Native CRM integrations with Salesforce and HubSpot
Recognize returning customers across any channel
Fully autonomous AI agents: Handle complex conversations, collect lead information, trigger workflow actions, escalate chats to human agents, update contact fields and Lifecycle stages, close conversations and generate conversation summaries.
Includes a mobile app for on-the-go messaging
High platform reliability with 99.9% uptime
24/5 multilingual human support via chat and call, 24/7 multilingual customer support
Cons
There is a learning curve
Not ideal for small businesses that don't seek to scale
Pricing
Respond.io’s mid-tier Growth plan is priced at $159/month and supports up to 10 users. It includes unlimited automation, unrestricted use of the AI Agent, advanced reporting and more — all without extra charges for WhatsApp API account setup, hosting, or markups to Meta message fees.
Wati
WATI (WhatsApp Team Inbox) is built for small and medium-sized businesses that focus mostly on the WhatsApp Business API. It focuses on team collaboration and simple automation for customer conversations on WhatsApp.
Pros
Supports WhatsApp Business App integration (coexistence)
Offers no-code automation tools and an AI support agent
CRM integrations with Salesforce and HubSpot
Integration with WhatsApp click to chat ads
Includes a mobile app for on-the-go messaging
Cons
Automation setup can feel fragmented across separate modules
Broadcasts only on WhatsApp
No WhatsApp calls
The platform may slow down under high message volumes
Wati’s support experience is inconsistent, with only email support for the Growth plan
WhatsApp messages include markup charges beyond Meta’s official rates
Pricing
The mid-tier WATI plan costs $79 for five users, making it a budget-friendly choice for small teams, but keep in mind the extra messaging markups and other unexpected fees. For instance, Shopify integration and 1,000 AI support responses are paid add-ons.
Trengo
Trengo is an omnichannel platform tailored for small businesses managing customer communication across multiple channels. It combines WhatsApp with email, SMS, Instagram, and more, offering a unified inbox and automation tools.
Pros
Supports multiple channels, including email, SMS, WhatsApp, Instagram, Messenger and custom channels
Offers rule-based automation for routing and tagging
CRM integrations with Salesforce and HubSpot
It has AI agents and other AI features, though in beta
Mobile app available for basic messaging tasks
Cons
No support for LINE or Viber
Broadcast is not available for Messenger, Telegram, or other channels
May experience performance issues under heavy message loads
Customer support is limited in availability and responsiveness
Pricing
Trengo starts at $579/month for twenty users, but key features like broadcast are paid add-ons. The number of conversations for this plan is limited to 18,000/year. For more, you’ll have to pay extra fees. The same happens with conversations with an AI surcharge.
Sleekflow
Sleekflow is aimed at small to mid-sized businesses that want a multichannel communication tool with a focus on WhatsApp automation.
Pros
Supports major messaging channels including WhatsApp, LINE, Facebook Messenger, Instagram, and SMS
It has AI agents and other AI features
CRM integrations with HubSpot and Salesforce
Offers rule-based automation
Provides a mobile app for managing conversations on the go
Cons
Does not support TikTok, email or custom channel integrations
No broadcast support for Messenger, Telegram, or Viber
No WhatsApp calls
May experience slowdowns with high message volumes
Customer support is limited in availability and responsiveness
$15 for each hosted number per month
Pricing
SleekFlow’s mid-tier plan costs $349/month and includes only 5 users. Pricing is based on the total number of stored contacts, not just the ones you actively engage with.
By default, Sleekflow has several usage limits. For example, all Sleekflow users receive 500 credits for AI Agent usage. There are 3 types of AI Agents to choose from: Basic Support uses one credit per message, while Sales Growth and Custom use two credits per message. Last, you’ll also need to pay for flow enrolment credits to trigger automation workflows.
Bird
Bird is best suited for enterprises that need to manage SMS, WhatsApp, and other channels at scale. Originally focused on SMS, Bird also supports other messaging apps with advanced routing and contact tools.
Pros
Supports major communication channels, including WhatsApp, SMS, Email, Facebook Messenger, Instagram and more
Offers WhatsApp Business Calling API for voice call integration
CRM integrations with Salesforce and HubSpot
Allows contact merging to unify customer profiles across channels
Provides flexible automation options through flows and APIs
Cons
Does not support custom-built channels outside its predefined list
WhatsApp broadcast setup requires technical configuration via Flow Builder
Automation tools are spread across different modules, making set up less intuitive
Platform performance can worsen under heavy message volume
Customer support is limited in availability and lacks clear SLAs
Pricing
Bird’s pricing model is modular, requiring businesses to pay separately for platform access, messaging and certain features, making it less transparent than bundled alternatives.
The standard plan starts at $45/month for up to 3,000 contacts, with scalable tiers based on contact volume. It includes two user seats, while additional seats are only available through custom enterprise agreements.
Each BSP has its strengths depending on your business size, messaging needs, and technical capacity. But choosing the right provider isn’t just about fit today — it’s about finding a platform that grows with you.
The Best WhatsApp Business Solution Provider: Side by Side Comparison
BSP | Channels supported | WhatsApp Calling API | AI & Automation | Integration with Hubspot and Salesforce | Reliability | Pricing |
Respond.io | WhatsApp, TikTok, Instagram DM, Facebook Messenger, custom channels and more | ✅ | ✅ Omnichannel AI + advanced automation | ✅ | ✅ 99.9% uptime + 24/5 chat and call support, 24/7 AI support | $159/month for 10 users. No extra charges for features |
WATI | WhatsApp and Instagram DM | ❌ | ⚠️ Basic no-code tools + WhatsApp-only AI agent | ✅ | ⚠️ Slows at volume + limited support | $79/month for 5 users. Markups & hidden fees apply |
Trengo | WhatsApp, Instagram, Facebook Messenger and more (no TikTok) | ❌ | ✅ Rule-based automation + basic AI | ✅ | ⚠️ Unstable under load + limited support | $569/month for 5 users. Add-ons required for features |
SleekFlow | WhatsApp, Faceobook Messenger, Instagram DM and more (no TikTok) | ❌ | ✅ AI agents + rule-based automation | ✅ | ⚠️ Slows at scale + limited support | $349/month for 5 users. Pricing based on contact count |
Bird | WhatsApp, Instagram, Facebook Messenger and more (no TikTok) | ✅ | ⚠️ Strong tools but split across modules | ✅ | ⚠️ Slows at scale + unclear SLAs | $45/month for 3,000 contacts. Modular & opaque pricing |
Many platforms are designed with small businesses in mind, but as your company grows, limitations in messaging channels, automation capabilities and platform stability can quickly become roadblocks. Migrating to a new platform later often means dealing with data transfer, team retraining and potential service disruptions.
WATI offers a good starting point for small teams using the WhatsApp Business API, but its lack of supported channels restricts customer entry points and engagement opportunities.
Trengo and SleekFlow provide more flexibility with multichannel support and basic AI tools, yet they still fall short when it comes to scalability and feature depth. Bird, meanwhile, can be complex due to fragmented tools and unclear pricing, making it difficult to evaluate and use effectively.
Respond.io stands out as being feature-rich with unique offerings like WhatsApp coexistence and WhatsApp Business calling API. While not one of the cheapest options, pricing is transparent and value-based.
Last, none of these solutions guarantees top stability with high chat volumes like respond.io. Also, respond.io’s support is regarded by G2 users as one of its biggest strengths.
Which WhatsApp Business Solution Provider Should I Choose?
BSP | Best for |
Respond.io | Startups to enterprises needing scalable omnichannel communication, advanced AI & automation, and CRM integration. Ideal for growing teams, medium and large size businesses and enterprises. |
WATI | Small to mid-sized businesses focused mostly on WhatsApp and Instagram. |
Trengo | Small to medium-size B2C businesses that require basic integrations and automation for doing support over chat. |
SleekFlow | Businesses with low chat volumes and limited automation and support needs. |
Bird | Mid to large businesses needing SMS + WhatsApp at scale, with flexible automation and API control. Best for technical teams. |
With advanced WhatsApp capabilities, seamless CRM integrations, full omnichannel coverage, enterprise-grade stability and transparent pricing, respond.io is the ideal long-term solution for business growth.
Experience it yourself — start your free respond.io trial today.
Turn conversations into customers with respond.io's official WhatsApp API ✨
Manage WhatsApp calls and chats in one place!
Frequently Asked Questions
What is a WhatsApp solution provider?
A called a WhatsApp Business Solution Provider (BSP), is a Meta-approved company that helps businesses use the WhatsApp Business API. These providers offer everything from setup to support and may include features like message automation, analytics, and integrations with other tools.
Which is the best WhatsApp API provider?
Respond.io: Ideal for startups to enterprises needing the most advanced features for reliable, scalable omnichannel communication. Great for teams managing sales and marketing across multiple channels.
WATI: Best for small to mid-sized businesses focused on WhatsApp.
Trengo: Fits small to medium B2C businesses offering support over chat. Centralizes channels like WhatsApp, Messenger and email with simple automation.
Sleekflow: Designed for businesses with low chat volumes and minimal automation needs. Works well for manual outreach and conversational selling.
Bird: Ideal for mid to large businesses with technical teams needing SMS and WhatsApp at scale. Strong fit for transactional messaging via API.
Do I need a solution provider to use WhatsApp?
Not necessarily. Today, businesses can access the WhatsApp API in two ways:
Directly through Meta — a simple, self-serve option, although you still need a messaging inbox.
Through a WhatsApp Business Solution Provider (BSP) — preferred by businesses that want added tools, support and scalability.