Top Custom AI Chatbot Development Firms

Custom AI chatbot development produces a bot built around one company's content, systems and tone rather than a generic widget. Developers connect a language model to the help center, policies and product data through retrieval, add actions such as order lookup, booking or ticket creation through APIs, and deploy it on the website, in the app, on WhatsApp or in Microsoft Teams, with live-agent handoff and conversation analytics. Businesses commission one when support queues grow, after-hours questions go unanswered, or an off-the-shelf bot gives wrong answers.

Compare chatbot developers here on resolution results from live deployments, the helpdesk platforms they have integrated, and how they test answers before launch.

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8,154 Companies

List of the Best Custom AI Chatbot Development Agencies

NASCI Consulting S.L.
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We are an official Salesforce Consulting Partner, but our expertise in Salesforce doesn't stem from working in a consulting firm. Instead, we have gained our experience by working directly with various Salesforce client companies, managing organizations of different sizes—ranging from large ones wit
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Alicante (Alacant), Es
Services Provided
35% Custom AI Chatbot Development
25% AI Strategy & Roadmap Consulting
30% CRM Consulting and SI
10% Other IT Consulting and SI
AI Summary
“NASCI Consulting S.L., a certified Salesforce Partner, delivers tailored, customer-centric Salesforce solutions for diverse organizations, leveraging direct client experience to ensure effective, honest, and cost-efficient IT services.”
Betty AI
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Betty is an AI-driven call agent that aims to transform the way companies handle calls and communication processes. By automating incoming inquiries and tailoring outgoing interactions, Betty enhances efficiency, precision, and maintains a human-like interaction through sophisticated AI technology.
Highlights
50-249
Employees
New York, New York, Us
Services Provided
70% AI Agent & Multi-Agent System Development
30% Custom AI Chatbot Development
AI Summary
“Betty AI automates call handling using advanced AI, integrating with CRM systems to enhance operational efficiency, customer engagement, and reduce costs across multiple business functions.”
PTF Lab
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PTF Lab is a tech firm specializing in AI and Computer Vision solutions designed for sports broadcasting. Their platform facilitates virtual advertising by enabling instantaneous logo swaps during live events, allowing sponsor brands to reach diverse markets. Additionally, the solution incorporates
Highlights
10-49
Employees
Tbilisi, Tbilisi, Ge
Services Provided
30% Custom AI Chatbot Development
70% Computer Vision Solutions
AI Summary
“PTF Lab develops advanced AI and Computer Vision technologies for sports broadcasting, enabling dynamic virtual advertising and AR-driven branding to enhance audience engagement and sponsor reach.”
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WellinglyAi
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WellinglyAI revolutionizes mental healthcare by preventing double bookings, re-engaging patients, and simplifying the scheduling process, allowing therapists to concentrate on providing care.
Highlights
$1,000+
Min Project Size
2-9
Employees
Services Provided
40% Custom AI Chatbot Development
35% Machine Learning Model Development
20% Conversational AI & Voice Assistant Development
5% AI Agent & Multi-Agent System Development
AI Summary
“WellinglyAI enhances mental healthcare by streamlining scheduling, preventing double bookings, and improving patient engagement, enabling therapists to focus more effectively on delivering quality care.”
Capstone Project Services
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Capstone Project Services is a certified SDVOSB that offers tailored human capital solutions for the construction, energy, and IT sectors. We supply highly qualified professionals, including project managers and safety and quality specialists, to assist organizations in delivering impactful projects
Highlights
$25,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided
34% Custom AI Chatbot Development
33% Change Management Consulting
33% Live Chat & Chatbot Implementation
AI Summary
“Capstone Project Services, a certified SDVOSB, delivers expert human capital solutions across construction, energy, and IT, providing skilled professionals and tailored support to ensure timely, compliant, and value-driven project success.”
Coralsoft
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Coralsoft is a software development company that prioritizes people, focusing on innovation, collaboration, and excellence. We believe that exceptional software emerges fro
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+1 Services
18% Mobile App Development (iOS & Android)
25% Custom Web Application Development
7% API Development & Integration
35% Custom AI Chatbot Development
AI Summary
“Coralsoft is a collaborative software development company committed to innovation, excellence, and fostering a supportive culture where every team member contributes to high-quality solutions.”
Spaceup Ai
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We aim to make automations and chatbots available to the general public, enabling them to use these tools efficiently to save time. At the same time, CEOs and founders can focus on expanding their businesses while enjoying their lives. Time is a precious resource, and the ideal moment to start autom
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided
10% AI Strategy & Roadmap Consulting
25% LLM Integration & Prompt Engineering
40% Custom AI Chatbot Development
25% Generative AI
AI Summary
“Spaceup Ai develops accessible automation and chatbot solutions that empower individuals and business leaders to save time and enhance productivity, enabling focus on growth and life balance.”
CognyX AI
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**Who We Are** CognyX AI develops reliable AI solutions that teams can depend on. We prioritize achieving tangible results, effective communication, and high-quality engineering. **What We Do** - Development of AI chatbots for quick responses across web, WhatsApp, and chat applications - AI
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided
40% Custom AI Chatbot Development
25% Generative AI
25% Robotic Process Automation (RPA)
10% AI Strategy & Roadmap Consulting
AI Summary
“CognyX AI delivers secure, reliable AI solutions including chatbots, automation, and generative AI, integrating seamlessly to enhance customer response, decision-making, and operational efficiency.”
BizDriver.ai
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BizDriver.ai provides fully managed AI assistants and agents, overseen by humans, to enhance customer engagement and boost sales for various industries. Utilizing its unique BizWiz AI Application Engine, the platform allows for the development of customizable, multi-step conversational flows to meet
Highlights
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided
40% Custom AI Chatbot Development
25% Conversational AI & Voice Assistant Development
25% AI Agent & Multi-Agent System Development
10% Generative AI
AI Summary
“BizDriver.ai delivers customizable, AI-driven conversational assistants for diverse industries, enhancing customer engagement and sales with scalable, context-aware, and brand-aligned solutions.”
InApps Technology
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Your Reliable AI-Enhanced Software Partner – Highly Rated ⭐⭐⭐⭐⭐ on Clutch InApps Technology stands out as a leader in software outsourcing and IT staff augmentation. We maintain top rankings on Clutch, being recognized as the #1 company in Vietnam for Application Development and IT Staff Augmentatio
Highlights
$10,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Ho Chi Minh City, Vn
Services Provided
50% Mobile App Development (iOS & Android)
25% Custom AI Chatbot Development
15% IT Staff Augmentation
10% AI Agent & Multi-Agent System Development
AI Summary
“InApps Technology is a leading Vietnam-based software partner offering AI-enhanced development, IT staff augmentation, and flexible engagement across diverse industries with proven quality and cost savings.”

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Top Custom AI Chatbot Development Firms

List of the Best Custom AI Chatbot Development Agencies

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