Top OpenAI Development Companies in California
SelectedFirms reviews agencies and verifies client feedback to support informed decisions. [How SelectedFirms Ensures Trust]
Explore Reviewed OpenAI Development Companies in California — Find Skilled OpenAI Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
13 Companies
Filter by
-
USA
-
California
80
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineered for the AI Era
Bytes Technolab is an AI-first Product Engineering and AI & Data Implementation partner engineering intelligent, scalable and market-fit digital products and implementing AI & Data solutions that turn operational complexity into sustainable competitive advantage, trusted across North America, UK, Europe, MENA, Australia and Asia. We partner with startups, mid-market and enterprise companies to build AI-powered products from the ground up and embed intelligence into the operations they already run de-risking innovation, accelerating time to market and building for scale with ambition. Our depth, structure and strategic clarity turn AI ambition into lasting, measurable business results. Not an agency. A partner who owns the outcome. Our Core Offerings in Software Development 1. Digital Product Engineering We help startups and enterprises turn ideas into scalable digital products through structured discovery, rapid MVP development, and robust engineering that accelerates time-to-market without compromising quality. Our expertise includes: Product Strategy & Discovery Prototyping Product Design & Experience Product Solution Architecture POC Development MVP Development Digital Product Development SaaS Development Product Modernization Product Governance CTO as Service 2. AI & Data Intelligence We embed AI into products and business processes to unlock smarter decisions, automation, and predictive capabilities that drive measurable efficiency and competitive advantage. Our capabilities include: AI Consulting & Strategy Generative AI Development Agentic AI Solutions Prompt Engineering NLP Development RAG Implementation Computer Vision MLOps & AIOps Platforms We Work For: [Digital Product Engineering] -- Product Strategy & Discovery JIRA & Confluence Monday FigJam -- Prototyping Figma Balsamiq -- Product Design & Experience Figma Miro or Figjam -- Product Solution & Architecture AWS/Azure/GCP AWS Serveless -- Product Design & Experience React, Angular, Vue NodeJS, Python, PHP, Java ReactNative, Flutter, Android, iOS -- MVP Development Confluence JIRA Figma MERN Python/Django PHP Java ReactNative Flutter AWS/Azure/GCP -- SaaS Development MERN Python/Django Java PHP ReactNative Flutter AWS/Azure/GCP -- Product Modernization SOC2, VPAT ADA, HIPPA, WCAG, GDPR, PCI DSS -- Product Governance -- AR/VR Development -- IOT Development [AI & Data Intelligence] -- AI Consulting & Strategy -- Generative AI Development React, FastAPI, Python, Flask, Django LangChain, LlamaIndex, Vector DBs -- Agentic AI Solutions CrewAI, LangGraph -- Prompt Engineering OpenAI, Anthropic -- NLP Development Hugging Face Transformers LangChain -- RAG Implementation Pinecone, Qdrant, Weaviate LangChain, LlamaIndex -- Computer Vision TensorFlow, PyTorch YOLO Tesseract, GPT-4, OCR, Embeddings MediaPipe -- MLOps & AIOps MLflow AWS SageMaker Kubeflow, Airflow [Digital Transformation] -- Web Application Development MERN Python Java -- CMS Development Wordpress Webflow Contentful Strapi Sanity -- Mobile Application Development React Native Flutter iOS Android Our Methodology: Engineering With Intent. Innovating With Discipline. At Bytes Technolab, innovation is embedded in our DNA. Our approach is customer-centric, agile, and outcome-driven. Innovation isn’t a buzzword for us. It’s a structured habit. We don’t start with code. We start with context—understanding the business model, constraints, customers, and the outcomes that truly matter. We focus on: Deep business discovery before making any technology decisions. Scalable, secure, and future-ready architectures that prevent tomorrow’s technical debt. Agile execution guided by clear strategic direction—balancing speed with purpose. Continuous investment in applied R&D, with strong focus on AI and emerging technologies. Performance optimization, governance frameworks, and measurable KPIs embedded from day one. Long-term technology partnerships designed for evolution, not one-time execution. Intelligent digital ecosystems that enhance customer engagement, streamline operations, and elevate digital maturity. Our USPs: Simple Reasons Why Our Clients Love Us AI-First Product Engineering Mindset Digital products are designed with intelligence embedded from day one, not retrofitted later. End-to-End Expertise Structured discovery, rapid MVPs, and enterprise-grade engineering under one unified delivery model. Architecture Built for Tomorrow Scalable, secure, and future-ready systems that prevent technical debt and support long-term growth. Partnership Beyond Delivery Long-term collaboration focused on measurable impact, continuous innovation, and sustainable digital maturity.
See all 13+ PortfoliosUndisclosed/hr
$1,000 - $10,000
100 - 249
Tomball, USA
Verified Client Review
Webflow Site Development for Creative Agency
Reviewed by: Taylor Powers, Project Manager at Creative Agency View all 48 Reviews51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Powering Enterprises with AI and Innovation
Seasia Infotech is an AI-driven digital engineering company with 20+ years of experience building enterprise-grade technology solutions. We help organizations design, develop, and scale secure and high-performance digital products that drive transformation and long-term growth. We operate at the intersection of AI, cloud computing, enterprise engineering, and product innovation, enabling businesses to adopt modern technologies faster and more efficiently. Our focus is on solving real-world business problems using intelligent systems, automation, and scalable architecture. We have worked with startups, enterprises, and global companies across industries such as healthcare, fintech, legaltech, e-commerce, education, logistics, and energy. Our delivery spans custom software, mobile apps, SaaS platforms, AI solutions, and cloud-native systems. At Seasia Infotech, we believe software should continuously evolve with business needs. As an AI-first engineering organization, we embed intelligence, governance, and measurable outcomes into every solution we deliver. Our Expertise Custom Software Development Enterprise Solutions (ERP, CRM, CMS) Enterprise Software Engineering & Modernization AI & Machine Learning Solutions Generative AI (Chatbots, Image & Text Generation) Agentic AI & Intelligent Automation Cloud Computing & DevOps Mobile App Development (iOS, Android, Cross-Platform) Web Development (Frontend & Backend) Data Engineering & Big Data Analytics UI/UX Design & Product Strategy Quality Engineering & AI-Powered Testing Blockchain Development IoT Solutions AR/VR Solutions Cybersecurity & Enterprise Security E-commerce Development Low-Code / No-Code Development Digital Transformation & Smart Automation We are committed to delivering high-quality, transparent, and outcome-driven solutions that help businesses reduce costs, improve efficiency, and accelerate innovation. Our goal is to empower organizations with future-ready digital ecosystems. Seasia Infotech continues to shape the future of digital transformation through AI-first thinking and deep engineering expertise.
See all 40+ Portfolios$25-$49/hr
$5,000+
500 - 999
Emeryville, USA
Verified Client Review
E-Commerce Engine for Web Dev Firm
Reviewed by: William Akuoko, CEO at ADEHYEE INFOTECH LTD View all 3 Reviews46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering partner for digital agencies
GetDevDone™ is the engineering partner for digital agencies. Since 2005, GetDevDone has delivered projects for 15,150+ agencies worldwide across website development, front-end development, eCommerce development, digital design, and AI engineering. Direct integration into agency structures, with work carried out within existing processes and tooling, helps us grow the client’s delivery capacity and handle technically demanding work without added overhead. Full engineering accountability behind white-label execution helps agencies protect client relationships, keeping timelines and brand output consistent across every engagement. Part of the P2H? Group, GetDevDone provides engineering depth and process maturity for digital agencies looking for dependable execution, backed by 400+ engineers, a 95% client return rate, and over 20 years of proven reliability since 2005. GetDevDone offers a capabilities portfolio delivered to production standards and built around reliability, scalability, accessibility, and performance. Our capabilities: AI engineering. AI prototype-to-production, embedded AI features for websites and eCommerce, AI-generated code rescue — all integrated into agency delivery. Website development. Custom builds, CMS solutions, landing pages, QA, migrations, and ongoing support structured to fit agency workflows, guard deadlines, and hold up with clients. Front?end development. Design-to-code conversion producing fast, performant, consistent across browsers, and extensible front-ends ready for production. eCommerce development. White-label eCommerce engineering with stable integrations, smooth releases, quality at every layer, and built-in analytics to inform budget and growth decisions. Digital design services. Launch-ready UI, UX research, design systems, and campaign assets delivered with clean handoffs and governed standards across websites, campaigns, and products.
See all 14+ Portfolios$50-$99/hr
$5,000+
250 - 999
San Francisco, USA
Verified Client Review
WordPress Dev for Automotive Solutions Company
Reviewed by: David Farmer, CEO at intice View all 4 Reviews44
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Create - Inspire - Deliver
At Kodexo Labs, we turn bold ideas into intelligent digital products. As a top-tier AI software development company, we help startups and enterprises solve real problems with smart, scalable, and future-ready solutions. From generative AI and machine learning to mobile and web app development, we build what matters—fast. With 79+ successful projects and 13 currently active, our track record speaks for itself. We're trusted across 17 global locations and have scaled products like Teacher AI to over 69,000 paid users. That’s not just growth—it’s proof our work performs in the real world. We specialize in AI-driven software development across industries like healthcare, e-commerce, education, automotive, real estate, energy, and more. Whether you're launching an MVP or modernizing a legacy platform, we design with users in mind and engineer for business impact. Our process is simple and effective: discover, design, develop, launch, and scale. You get a dedicated team, real results, and zero fluff. If you're serious about building smarter, faster, and more secure digital products—Kodexo Labs is your partner, not just a provider. Let’s build the future, together.
See all 11+ Portfolios$25-$49/hr
$10,000+
50 - 249
Austin, USA
Verified Client Review
Web & AI Development for Healthcare Consulting Company
Reviewed by: Christopher Brigham MD, President at Brigham and Associates, Inc. View all 4 Reviews34
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Software That Works in the Real World
SoftDoes is a Kansas City–based custom software, mobile app, and AI development firm building software that works in the real world, not just in demos or pitch decks. Our role is to turn your complex ideas and operational pain points into production-ready platforms that teams can actually run, trust, and scale. Every system is designed to fit into existing workflows, support compliance and security requirements, and remain maintainable long after launch. Who partners best with SoftDoes? Technical Leaders who want solutions, not headcount You need experienced engineers who can own delivery without creating more oversight. You want clean integrations, scalable architecture, and fewer operational fires. We build internal platforms, modernize legacy systems, and deliver AI automation. Business Owners solving operational complexity Your business has outgrown off-the-shelf tools and manual processes. You want software that improves efficiency without disrupting operations. We build custom platforms, workflow automation, and reporting systems. Founders who want to see their vision become reality You need a partner who can turn ideas into production-ready software. You want clear guidance, realistic timelines, and software that scales. We build MVPs, core platforms, and customer-facing applications. We work with organizations across: Healthcare Finance Construction Education Energy Technology Compliance-driven industries Clients choose SoftDoes for senior-level thinking, clear communication, and delivery they do not have to manage day to day. We operate as a true extension of your team, owning technical decisions and execution so you can stay focused on the business. Book a free product call and speak with an expert today. Website: https://softdoes.com/ Email: info@softdoes.com Phone: 816-800-2121
See all 1+ Portfolios$50-$99/hr
$5,000+
50+
Merriam, USA
31
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Technology Partner
Metricoid is a Software Development & Consulting Company. We help our clients to transform their business digitally with custom software solutions. We’re a talented team of strategists, designers, and developers from different backgrounds brought together by a shared goal: Build Digital solutions that transform organizations for the better. So far we’ve helped 50+ businesses and launched over 100 digital products. Our Core Expertise are: Custom Web & Mobile App Development AI/ML Development MVP Development SaaS Application Development iPaaS Application Development PWA (Progressive Web App) Development eCommerce Development UX/UI Design APIs Development & Integrations BI Dashboards (Data Visualization) Data Source Integration Web 3.0 Development Checkout our recent projects - https://metricoidtech.com/case-studies/ Working with clients passionate about their idea makes us excited to work hard to convert their Dream into Reality. We always learn from our previous experience to provide the best solutions and products. Our Philosophy Customer satisfaction is our key driving force. We believe in working customer backwards, and our projects always begin with a thorough understanding of the challenge that customer is facing. We frequently put ourselves in our clients’’ shoes and visualise what we plan to deliver from clients’ perspective. This helps us remain true to our core philosophy of adding true and lasting value to clients’’ business. Visit us at https://metricoidtech.com or write at hello@metricoidtech.com
View Metricoid Profile$25-$49/hr
$5,000+
10 - 49
Walnut Creek, USA
Verified Client Review
Digital Design Renderings for Architectural Firm
Reviewed by: Hayedeh Daneshmand, President at Archtic Design View all 3 Reviews29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Immigration Software Solutions
As an AI app development company, we build AI-powered applications that go beyond traditional software. Our smart solutions help businesses automate tasks, make faster decisions, and deliver better user experiences. Whether you need a custom chatbot, predictive analytics tool, or a full-scale AI app, we turn complex ideas into simple, powerful products. With a focus on real results, we design apps that grow with your business. Ready to unlock the power of AI? Contact us at +18507801313, and let’s build together!
View BOSC Tech Labs Profile$25-$49/hr
$20,000 - $35,000
50 - 100
Burbank, USA
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
YOU THINK IT WE BUILD IT
TOPS Infosolutions is an AI-focused software development company helping enterprises and growing businesses enhance customer experiences and drive innovative growth through intelligent solutions. Our core expertise includes: RAG as a Service Applied AI Solutions Generative AI Development Agentic AI Systems AI-Powered Software Development Web and Mobile Application Development E-commerce Solutions We build AI-driven web and mobile applications across industries such as e-commerce, healthcare, finance, education, transportation, retail, and manufacturing. Our team of experienced AI engineers, software developers, solution architects, and project leaders combines deep technical expertise with a strong understanding of real-world business challenges. As a long-term technology partner to global clients, we focus on transparency, agile execution, and outcomes that align with strategic business goals. For solutions like product strategy, MVP development, and enterprise-grade AI implementation, we ensure every solution is built for performance, scalability, and long-term value.
View TOPS Infosolutions Pvt. Ltd. ProfileUndisclosed/hr
$10,000 - $1,000,000
250+
Fremont, USA
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Partner for Digital Excellence
TenUp Software Services is an ISO 27001-certified software development company and a trusted AWS Partner, serving clients in more than 7 countries, including the United States and the United Kingdom. We specialize in building scalable, secure, and high-performing software solutions tailored for industries such as Fintech, Telecom, Logistics, Retail, and Healthcare. Founded and led by three co-founders—each bringing over 20 years of industry experience—TenUp is a mid-sized, results-first company with a growing team of 70+ certified Software Engineers, Solution Architects, Project Managers, Business Analysts, and Tech Experts. Our core strength lies in not just delivering code, but in taking full ownership of solving your toughest technology challenges—whether it’s modernizing legacy systems, launching new SaaS products, or scaling enterprise operations. We believe in building long-term partnerships based on trust, accountability, and measurable outcomes. Our clients consistently recognize us as their most reliable tech partner. In 2022, Clutch ranked us among India’s top IT service providers, acknowledging our commitment to excellence and customer success. Our Services Include: Enterprise Application Lifecycle Management (ALM): End-to-end SDLC management, agile project delivery, and ALM toolchain integration. Digital Transformation: Legacy system modernization, cloud adoption, and next-gen platform migration. Product Engineering: MVP development, SaaS platform engineering, modular product architecture, and scalable tech stacks. Cloud Solutions: Cloud-native app development, DevOps integration, serverless infrastructure, and cloud migration. Data Engineering: Real-time data processing, data pipelines, warehousing, and actionable insights at scale. DevOps Services: CI/CD, Infrastructure as Code (IaC), automation, containerization, and incident monitoring. Artificial Intelligence: ML model development, NLP, computer vision, AI-as-a-Service, and cloud-based deep learning. Let’s build something exceptional—together.
View Tenup Software Service LLP Profile$25-$49/hr
$25 - $50
1 - 100
Palo Alto, USA
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Trusted Software Development Company
As one of top 10 software development companies in Vietnam since 2009, we have empowered our global clients through excellence in digital transformation. We provide custom software development and dedicated development team, tailored to businesses of all sizes, regions and industries.
View SavvycomSoftware Profile$25-$49/hr
$20,000 - $50,000
750 - 800
Laguna Beach, USA
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Amplify your potential. Unlock more value, impact, and speed from your DXP investment.
We Build Technology for Brand Marketers and Agencies Oshyn partners with some of the best brands and creative agencies in the world to create exceptional digital marketing solutions. By providing services, technology, and platforms we enable creative talent to focus on what they do best: create amazing work. Over the last 25 years, we've built a stellar reputation for delivering exceptional customer experiences via marketing technology. We’ve worked with top brands, including Dole, UMass Global, Volkswagen, and Aetna. And we’ve partnered with top creative talent like Sapient-Razorfish, Crispin Porter + Bogusky, 72andSunny, and many more. Our unique application of proven processes, best-in-class technology, and deep expertise delivers memorable brand experiences and expands and enhances agency capabilities. We are passionate digital marketing & web technology experts who love solving big problems.
View Oshyn, Inc Profile$100-$149/hr
$5,000 - $800,000
50 - 75
Cypress, USA
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Innovative UI/UX and Webflow Development for Business Growth
Advetfly Solutions LLP is a leading design and development company specializing in UI/UX design, Webflow development, and custom digital solutions. We craft user-centric websites and mobile applications that empower businesses across industries, including healthcare, logistics, education, eCommerce, fitness, retail, pharmaceuticals, and marketing. Our expert team blends creativity with technology to deliver intuitive interfaces, seamless functionality, and scalable solutions tailored to business goals. Beyond design and development, we help brands enhance their digital presence, engagement, and conversion rates through impactful strategies. At Advetfly, we transform ideas into powerful digital experiences that drive measurable results and long-term growth.
View Advetfly Solutions Profile< $25/hr
$1,000+
10 - 49
Long Beach, USA
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Make the right Choice
AlphaBOLD is a global leader in next-generation business transformation and consulting. We enable clients all over the US to navigate their digital transformation. With collectively three decades of experience managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do this by enabling the enterprise with Dynamics 365 or Oracle NetSuite core, which helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovative ecosystem. AlphaBOLD implements Dynamics 365, SharePoint, Power BI, Oracle NetSuite, and many other custom solutions for its customers. From end-to-end digital implementations to planning, design, development, and roll-out of various business applications, BOLDEnthusiasts can deliver it all. AlphaBOLD has developed vertical-specific solutions for Construction, Manufacturing, and Retail companies to help them reach their true potential. AlphaBOLD also offers add-ons that can be installed easily on existing systems and help boost the productivity of an organization significantly. Our add-ons include BOLD-HI, BOLDSync etc.
View AlphaBOLD Profile$25-$49/hr
$5,000+
50 - 249
Carlsbad, USA
Why Companies Trust SelectedFirms?
SelectedFirms bridges the gap between businesses and digital service providers as a trusted B2B research and listing platform. With the trust of 14,000+ companies and a growing community of 1M+ users, we empower businesses with reliable insights to make confident decisions.
Human-verified companies
We manually review companies to ensure they meet our quality standards before they appear on the platform.
Research-driven rankings
We rank companies using a clear ranking methodology based on real client feedback, expertise, market credibility, and how well teams execute — not hype.
Always up-to-date insights
We regularly refresh listings with new reviews, portfolio updates, and market changes to keep decisions relevant.
Verified credibility signals
From verified badges to editorial reviews, we highlight companies that show real commitment to quality and transparency.