Top 10 Voice AI Agent Development Companies in 2025
AI is evolving super fast, especially in voice technology. It feels like just yesterday that talking to your phone or smart speaker seemed futuristic, but now it's an everyday part of life.
Businesses are quickly adapting because today's customers want quick answers, easy interactions, and personalized experiences.
That's where Voice AI agent development companies in 2025 come in.
These teams are utilising machine learning, natural language processing, and cutting-edge generative AI to develop intelligent voice bots, AI-powered assistants, and conversational agents that not only comprehend what people are saying but also respond in ways that feel genuinely human.
Integrating voice AI into your product or service is a big leap for founders, co-founders, product managers, entrepreneurs, and tech leaders (or anyone wearing multiple hats). But with the right AI development partner, it doesn't have to be.
There's a huge difference between a voice assistant customers love and one they tolerate.
Maybe you're thinking about:
Improving AI-powered customer support
Automating operations with a voice assistant
Launching a cool, voice-driven feature in your app
Or just seeing how voice tech startups are changing the game
This article breaks down the top voice AI agent development companies, best AI voice bot developers, and top voice assistant development firms that are making serious waves in 2025.
The companies on this list aren't just tech wizards; they get your business, your challenges, and your goals.
They build solutions that genuinely work, whether you're a tiny startup or a big player in healthcare, finance, retail, or manufacturing.
So grab a coffee, get comfy, and let's dive into the top 10 voice AI agent development companies in 2025 that could be the perfect match for your next big idea.
Why Trust This List?
At RaftLabs, we've been in the trenches. We've built custom AI and voice-driven solutions across various industries, including healthcare, media tech, and marketing, so we know what works and what doesn't when it comes to selecting the right voice AI development company as a partner.
To create a genuinely helpful list, we followed a structured evaluation process focused on what really matters, like technical depth, real-world delivery, and business outcomes that each company claims.
Here's what we looked at:
1. Experience In AI Agent Development
Looked at the years of experience in AI development to know the specialisation and stability of AI expertise.
2. Team Strength and Technical Talent
We evaluated team size, technical specialisation, thought leadership and diversity of each company's AI team.
3. Clutch Ratings
Clutch is a B2B ratings and reviews platform for service providers by businesses. We evaluated each company's clutch ratings and reviews to understand client satisfaction.
4. Range of Services
We considered the services they offer and the industries they serve by providing full product development from design to deployment and ongoing support.
5. Client Network
We focused on evaluating the Client Portfolio and Case Studies with real-world AI agent development and reviewed the network of clients in their portfolio.
6. Industry Recognition and Awards
We have reviewed the external industry recognitions and awards for each company to know the authority and credibility in AI development from reputable sources.
Before diving into the company list, let's quickly cover what AI voice agents actually are and how they can genuinely help your business.
What are AI Voice Agents?
AI voice agents are intelligent, conversational tools that can understand, process, and respond to human speech intelligently and effectively. They're at the heart of today's most effective virtual assistants, intelligent support bots, and voice-enabled apps.
Now, how do they help businesses?
First, they take care of all the boring, repetitive tasks, so your team doesn't have to, like answering common questions, booking things, and giving updates, which saves time and money.
They're also around 24/7. No sick days, no breaks. People like using them when they work right. Less wait, fewer clicks.
So, these voice AI agents make your customers happy. And when people are happy, they tend to stick around. Simple as that.
Whether you're a startup founder looking to build your MVP or a product manager at a Fortune 500 company, these voice AI startups/companies in 2025 could be exactly what you need to bring your ideas to life.
Top 10 Voice AI Agent Development Companies
- RaftLabs: Best for fast, scalable Voice AI development for startups and enterprises
- Openxcell: Best for enterprise-grade AI integration
- Pixelette Technologies: Best for innovation-driven generative AI and blockchain
- Azumo: Best for real-time, tool-rich Voice AI development
- InData Labs: Best for data-driven AI voice solutions
- AppInventiv: Best for large-scale AI implementation
- Solulab: Best for conversational AI with LLM integration
- Bluebash: Best for voice-enabled healthcare and retail platforms.
- Appic Softwares: Best for full-stack AI and app development services
- LeewayHertz: Best for AI Development blockchain, and IoT Solutions
| S.No | Company Name | Clutch Rating | Experience (Years) | Pricing (Hourly Rate) | Industry Focus |
|---|---|---|---|---|---|
| 1 | RaftLabs | 4.9/5 | 9+ | $25 - $49 / hr | Media, Health Tech, Marketing, Commerce, EdTech, FinTech |
| 2 | OpenXcell | 4.8/5 | 14+ | < $25 / hr | Healthcare, Retail, eCommerce, Education, Finance |
| 3 | Pixelette Technologies | 4.8/5 | 8+ | $25 - $49 / hr | Data Software, Gaming, Blockchain, Gov, E-commerce |
| 4 | Azumo | 4.8/5 | 8+ | $25 - $49 / hr | Oil & Gas, Finance, E-commerce, Healthcare, Tech |
| 5 | InData Labs | 4.7/5 | 9+ | $50 - $99 / hr | Finance, Healthcare, Retail, E-commerce, Logistics, Telecom |
| 6 | Appinventiv | 4.7/5 | 9+ | $25 - $49 / hr | Healthcare, Fintech, Social, E-commerce, Education, IT |
| 7 | SoluLab | 4.9 /5 | 10+ | $25 - $49 / hr | Healthcare, Finance, Real Estate, Supply Chain, E-commerce |
| 8 | Bluebash | 4.9/5 | 6+ | $25 - $49 / hr | Healthcare, E-commerce, Finance, Entertainment, Education |
| 9 | Appic Softwares | 4.8/5 | 7+ | < $25 / hr | E-commerce, Healthcare, Education, Retail, Finance |
| 10 | LeewayHertz | 4.4/5 | 15+ | $50 - $99 / hr | Finance, Manufacturing, Healthcare, Retail, IT, etc. |
So let’s dive into each one of them in detail.
1. RaftLabs
RaftLabs is a globally trusted AI software development agency specializing in building custom web, mobile, and AI-powered applications for startups, SMBs, and enterprises across sectors like media tech, health tech, marketing tech, and digital commerce.
Known for their rapid, product-focused approach and founders-led collaboration, RaftLabs delivers scalable, user-centric solutions, ranging from real-time audio/video platforms to AI chatbots and loyalty apps, helping brands like Aldi, Vodafone, and Energia turn ideas into impactful products in weeks, not months
Key Services: Custom AI application development, AI Chatbot and Voicebot Development, AI agent development, AI MVP development, Conversational AI Development, SaaS Application Development, Web/Mobile app development, and loyalty/referral platforms.
Industries Served: Media & Communication, Health Tech, Marketing Tech, Digital Commerce, EdTech, FinTech.
Known Clients/Projects: Aldi, Vodafone, Sanbra Fyffe, Energia; SaaS platforms for real-time audio/video communication, loyalty and referral platforms, telehealth and remote patient monitoring apps, AI chatbots for customer engagement, decision-making platforms, and learning management systems.
Location: India (Remote & Global delivery)
Hourly Rate: $25 - $49/hr
2. Openxcell
OpenXcell is a leading IT consulting and software development company specializing in AI, machine learning, Voice AI, and cloud technologies. They offer tailored AI agent development services, including strategy consulting, custom solutions, and seamless integration.
With expertise in conversational and Voice AI, OpenXcell helps businesses enhance customer experience, automate workflows, and scale efficiently through intelligent, goal-driven digital solutions.
Key Services: Custom LLM development, RAG, machine learning, intelligent chatbots, virtual assistants, AI app development, GPT integration
Industries Served: Healthcare, Retail, eCommerce, Education, Finance
Known Clients/Projects: AI-driven financial tracking app, custom virtual assistants for various sectors
Location: India, USA
Hourly Rate: < $25 / hr
3. Pixelette Technologies
Pixelette Technologies stands out as a global leader in both AI and blockchain, ranking in the Top 3 worldwide. They are known for award-winning innovation and delivering measurable results with deep expertise in generative AI tools.
Key Services: Generative AI, AI chatbots, smart assistants, recommendation engines, AI security, AIOps, predictive modeling, machine learning (supervised, unsupervised, reinforcement learning)
Industries Served: Data Software, Gaming, NFT/Art Marketplaces, Enterprise, Blockchain, Financial Services, Government, E-commerce
Known Clients/Projects: AI-driven predictive modeling for New York data company; NFT marketplace development for art collective; Secretariat of the British Government’s AI policy body
Location: United Kingdom, United States (Global presence across 15+ locations)
Hourly Rate: $25 - $49/hr
4. Azumo
Azumo delivers advanced AI agent development using over 500 models and tools like LangChain and LiveKit. Their services include Voice AI-powered virtual assistants, intelligent automation, predictive analytics, and secure system integration.
With scalable, context-aware AI agents, Azumo helps businesses enhance customer support, streamline operations, and future-proof with continuous optimization across cloud, hybrid, and on-premise environments.
Key Services: Custom AI & ML development, AI agent development, generative AI, NLP, speech-to-text, model fine-tuning, cloud-based AI deployment
Industries Served: Oil & Gas, Financial Services, E-commerce, Healthcare, Education, Technology
Known Clients/Projects: AI-driven solutions for oil & gas giants; Falcon LLM fine-tuning for enhanced customer support
Location: United States (Global services)
Hourly Rate: $25 - $49/hr
5. InData Labs
InData Labs is a global AI-powered solutions provider founded in 2014. They specialize in generative AI, NLP, predictive analytics, and big data engineering. Their custom AI products help automate operations and unlock insights in finance, healthcare, and e-commerce.
Key Services: AI/ML software development, computer vision, predictive analytics, data engineering, BI, and data visualization.
Industries Served: Finance, Healthcare, Retail, E-commerce, Logistics, Telecom
Known Clients/Projects: Data science solutions for global enterprises; partnerships with Gcore for AI and big data solutions.
Location: Cyprus (Serving clients in the USA, UK, Europe, Singapore)
Hourly Rate: $50 - $99/hr
Also read: Best SaaS Development Companies
6. AppInventiv
Appinventiv is a leading Indian IT firm specializing in Generative AI and Voice AI agent development. With 1,600+ experts, they build intelligent, context-aware voice agents that enhance customer engagement and streamline operations.
Their AI digital accelerator ensures rapid deployment, customization, and integration, helping businesses across industries harness the power of Voice AI for efficiency, scalability, and innovation.
Key Services: AI app development, voice generation and text-to-speech, autonomous AI agent development, cloud integration, digital transformation.
Industries Served: Healthcare, Fintech, Social Media, E-commerce, Education, IT
Known Clients/Projects: AI-based healthcare app for US hospitals; Vyrb (voice-based social app); Chat & More, JobGet.
Location: India (Global delivery)
Hourly Rate: $25 - $49/hr
7. SoluLab
SoluLab, a Los Angeles-based digital solutions company, offers cutting-edge AI agent development tailored to enterprise needs. With expertise in LLMs and autonomous systems, they build scalable, context-aware voice agents for dynamic, human-like conversations.
SoluLab’s AI services span consultation to optimization, enabling 24/7 automation, multimodal data handling, and seamless integration across industries like healthcare, retail, and finance.
Key Services: Custom AI development, machine learning, blockchain integration, chatbot development, enterprise software.
Industries Served: Healthcare, Finance, Real Estate, Supply Chain, E-commerce, Enterprise
Known Clients/Projects: AI-powered automation and AI projects across industries
Location: United States, India
Hourly Rate: $25 - $49/hr
8. Bluebash
Bluebash is a tech-focused software development company that helps startups and businesses with AI, cloud, and custom web solutions. Their core strengths include AI agent development, cloud infrastructure, and scalable platforms for healthcare and e-commerce.
Key Services: AI chatbot/cobot development, NLP, machine learning, Hugging Face integration, multilingual chatbot solutions.
Industries Served: Healthcare, E-commerce, Financial Services, Entertainment, Education
Known Clients/Projects: AI chatbot development for healthcare and e-commerce; Hugging Face AI agents for customer support
Location: United Kingdom, India
Hourly Rate: $25 - $49/hr
9. Appic Softwares
Appic Softwares delivers a full spectrum of digital solutions, including custom mobile and web app development, AI and GenAI services, machine learning, blockchain, DevOps, and digital transformation.
Their work spans across fintech, healthcare, e-commerce, real estate, and more, making them a reliable tech partner for businesses of all sizes. Notable case studies include AI-powered loan platforms, eco-emission tracking tools, healthcare e-commerce apps, and real-time legal chat systems, reflecting their strength in solving complex, real-world challenges.
Key Services: Custom AI agent development, machine learning, NLP, conversational chatbots, product recommendation engines
Industries Served: E-commerce, Healthcare, Education, Retail, Financial Services
Known Clients/Projects: Custom AI agent solutions for e-commerce platforms; AI-powered recommendation engines
Location: India
Hourly Rate: < $25 / hr
10. LeewayHertz
LeewayHertz is a global software development company with expertise in AI, blockchain, IoT, and enterprise solutions.
With 160+ platforms delivered and clients including Fortune 500s, they offer advanced AI services such as strategy consulting, model development, and NLP tools.
Key Services: AI and ML strategy consulting, custom AI app development, generative AI solutions, LLM-powered applications, AI integration, PoC and MVP development, blockchain and Web3 development, IoT, robotic process automation.
Location: United States (headquartered in San Francisco), United Kingdom, India (serving clients globally)
Industries Served: Finance, Manufacturing, Healthcare, IT, Supply Chain, Banking, Consumer Products, Hospitality, Utilities, Retail, Transportation & Logistics, Travel & Lifestyle, Insurance, Automotive, Media & Entertainment
Known Clients/Projects: Fortune 500 manufacturing company (LLM-powered machinery troubleshooting app), Scrut (LLM-powered compliance and audit platform), AI-powered medical assistant for healthcare, AdPerfect (AI-powered SaaS for ad generation), iCruise (multi-platform travel app), Siemens, O’Reilly Auto Parts, ETON
Hourly Rate: $50 - $99/hr
Also read: 10 Real-World Applications of Voice AI in Healthcare
How to Choose the Right Voice AI Agent Development Company
Choosing the right AI agent development partner for Voice AI agents isn't just about technical skills. It’s about trust, experience, and alignment.
Here's the 10-step process to evaluate potential vendors with confidence.
1. Identify Your Needs and Goals
2. Evaluate technical expertise
3. Review industry experience
4. Customization & Flexibility
5. Integration Capabilities
6. Scalability Capabilities
7. Data Security Standards
8. Evaluate Ongoing Support & Maintenance
9. Compare Pricing Models
10. Check References and Reviews
| Steps | What to Look For |
|---|---|
| Identify Your Needs and Goals | Outline clear goals for the Voice AI agent so the solution aligns with your broader business needs. |
| Evaluate technical expertise | Does the company have proven skills in LLMS, NLP, speech recognition, and AI model integration with similar project experience? |
| Review industry experience | Check if they understand your industry, have domain-specific knowledge, and can meet compliance requirements. |
| Customization & Flexibility | Confirm Can they tailor the Voice AI agent to your brand’s tone, workflows, user experience and can adapt the agent's behavior post-deployment? |
| Integration Capabilities | Verify the solution can integrate with existing systems like APIs, CRMs, ERPs, internal tools, or data pipelines. |
| Scalability Capabilities | Ensure the Voice AI agent can grow with your business by handling more users, features, and channels over time without causing tech debt. |
| Data Security Standards | Look for strong data security measures, including encryption and compliance with regulations like GDPR or HIPAA. |
| Evaluate Ongoing Support & Maintenance | Confirm with company whether they provides continuous support, updates, and model improvements post-deployment. |
| Compare Pricing Models | Understand their pricing models, is it hourly based or project-based, and whether it’s transparent and fits your budget. |
| Check References and Reviews | Review the company’s past projects, client testimonials especially in your industry or use case. |
Also Read: How to Build a Conversational AI Chatbots
Conclusion
Voice AI is quickly changing the way businesses connect with people. Whether it’s making support easier, speeding up tasks, or building full-on voice-first products, the right tech partner can make or break your vision.
The companies listed here have top ai agent development talent doing great work in the space. Some focus on healthcare, others on security, some on consumer products, but all of them are pushing voice tech forward in their own way. Hopefully, this list helped you spot a few names worth bookmarking.
And if you’re still figuring out where to start or want someone to brainstorm with, we at RaftLabs are always up for a chat. Voice tech is a space we genuinely enjoy building in, and if there’s a way we can help, let’s talk.
Ready to elevate your product with advanced AI voice technology? Contact us today.
Frequently Asked Questions
What makes top Voice AI companies stand out in 2025?
The best Voice AI companies in 2025 are not just building bots that respond. They are creating smart assistants that understand your users, connect with your systems, and keep improving over time. What sets them apart is how deeply they care about real-world results. They build with security in mind, follow ethical AI practices, and make sure the tech fits the unique needs of each business. It is not about the loudest pitch. It is about the most thoughtful execution.
How much does it cost to build a Voice AI agent?
There’s no one-size-fits-all answer here. Some Voice AI agents are simple call-routing bots; others handle complex workflows across healthcare, finance, or customer support. Cost depends on how intelligent, integrated, and scalable the solution needs to be. Most companies offer flexible pricing based on project scope, so sharing goals and budget upfront helps speed things up. If you are curious about ballpark figures, check out our pricing page for a quick idea of what to expect.
How do Voice AI developers handle tricky challenges like privacy or system compatibility?
Voice data is often sensitive, and user speech patterns can vary widely. Expert Voice AI developers address these challenges from the very beginning. They implement robust security protocols to protect data and train their models on diverse datasets to ensure accuracy across different accents, tones, and languages. Additionally, they focus on seamless integration with your existing systems and design solutions that can scale as your business grows. It is not just about quick deployment—it is about building reliable, future-ready technology.
How do you know if investing in Voice AI is worth it?
If your business manages a high volume of voice-based interactions—such as customer support, appointment scheduling, or order management—Voice AI can offer significant value. A reliable Voice AI partner will work with you to define clear success metrics, whether that means reducing response times, minimizing call drop rates, or improving overall customer satisfaction. The benefits often go beyond cost savings, contributing to more efficient operations, improved user experience, and increased team productivity.
How long does it take to build and deploy a Voice AI agent?
Timelines can vary depending on the complexity of the solution. A basic Voice AI agent may take a few weeks, while more advanced systems—especially those requiring deep integrations or custom workflows—can take several months. A good development partner will break down the phases clearly, from discovery to deployment, and ensure regular updates throughout the process. The goal is not just speed, but delivering a stable and effective solution that performs reliably from day one.
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