Top Custom Software Development Companies in Mountain View, California

Spiral Scout helps companies turn messy, high-stakes workflows into durable, agent-driven production systems. We step in where internal teams or generic agencies stall — typically at the intersection of automation, data, and AI that must operate inside real business constraints. We don’t sell headcount or ticket delivery. We design and ship working systems that run reliably, scale over time, and stand up to audits. From AI agents and long-running workflow orchestration to CPQ and complex SaaS platforms, we take responsibility from architecture through production readiness — and leave clients with systems they can own and operate independently.

Diffco

Your trusted software development partner

5.0(10)

5.0

10 reviews

Diffco is a San Jose-based company specializing in AI, custom software development, and staffing services. With more than 17 years of expertise in creating dependable solutions for mobile, web, and AI applications, it is committed to driving and supporting the growth of your business. Products we developed are used by renowned companies such as American Express, Starbucks, Whole Foods, Mars, and many successful startups like Maze, Happier, and Legion Farm, among many others. Why Diffco? For your project development: -Client-driven approach and clear communication -Transparent processes and billing -Detailed reporting and deliverables -Dedicated project team with no cross-project sharing For your team augmentation: -Transparent pricing with no hidden fees -Vetting and verification of team member expertise -Fast and straightforward hiring for both long and short-term projects -A dedicated account manager to facilitate interactions with both candidates and hired personnel

CrestPoint

CrestPoint Solutions is a global provider offering innovative process-driven solutions for government and enterprise ...

CrestPoint Solutions is a global provider offering innovative process-driven solutions for government and enterprise clients. They specialize in facilities management and engineering (FME) services including DCIM, telecommunications, cloud & colocation management, and infection prevention solutions for hospitals, hotels, and mission-critical environments. The company also provides custom software development and consulting services.

Waverly Software

Waverley is a software engineering company with over 400 technical specialists building distributed development teams.

Waverley is a software engineering company with over 400 technical specialists building distributed development teams in Bolivia, Mexico, Romania, Vietnam, and Ukraine to augment your internal team’s capabilities.

Niantic

Niantic inspires people to explore the world, together.

Niantic inspires people to explore the world, together. Our mission is to use emerging augmented reality (AR) technology to enrich our experiences as human beings in the physical world. Originally formed at Google in 2011, we are now an independent company with a strong group of investors including Nintendo, The Pokémon Company, and Alsop Louie Partners.

Genesys

Every year, Genesys® orchestrates more than 70 billion remarkable customer experiences for organizations in more than...

4.7(1)

4.7

1 review

Every year, Genesys® orchestrates more than 70 billion remarkable customer experiences for organizations in more than 100 countries. Through the power of our cloud, digital and AI technologies.

WLCM App Studio

Verified

WLCM is a custom software design and development studio.

WLCM is a custom software design and development studio. A tight-knit and long-standing veteran team, we've built our reputation winning "best in class" recognition by Apple, “Best of Experience Design” by FastCo, and "Best in Business" by Inc.

G360 Technologies

Verified

G360 Technologies helps companies develop custom software solutions while maximizing the opportunities created by the...

G360 Technologies helps companies develop custom software solutions while maximizing the opportunities created by the use of Cloud & AI. We take the time to understand our customers unique business challenges and are 100%-focused on business outcomes.

Altoros

Altoros is a leading technology consulting firm that specializes in custom software development, cloud automation, and.

Altoros is a leading technology consulting firm that specializes in custom software development, cloud automation, and artificial intelligence solutions. With a focus on innovation and quality, Altoros helps businesses accelerate digital transformation and optimize operations through tailored digital strategies. Leveraging expertise in various industries, the company delivers scalable solutions that drive efficiency and growth.

IntuitionLabs

Veeva, AI, and data solutions for life sciences.

IntuitionLabs is a premier technology firm based in San Jose, California. We specialize in building custom artificial intelligence (AI) software and enterprise solutions for the pharmaceutical and life sciences industries. Founded by 25 year software engineering veteran Adrien Laurent, our company helps biotech teams use advanced technology while staying compliant with strict global health rules. We ensure every project meets critical standards like FDA 21 CFR Part 11, EMA Annex 11, GxP, and HIPAA. Our Specialized Services We operate where advanced data engineering meets the Veeva Systems ecosystem. Our San Jose based team helps mid to large cap pharmaceutical companies manage their digital growth with precision. Official Veeva Vault CRM X Pages Partner As a certified partner, we provide expert level implementation and customization for the Veeva software stack. We specialize in the Development Cloud for Clinical, Regulatory, Quality, and Safety suites. We also use Veeva Nitro to unify fragmented data into a single source of truth. Pharmaceutical AI and Analytics We design high performance AI tools that work within strict clinical guardrails. This includes Medical Info Chatbots for healthcare professionals and Sales Operations Assistants for territory management. Our tools are built to ensure data integrity and eliminate errors. Data Engineering and Warehousing We build the robust technical plumbing required for enterprise scale AI. Our team optimizes cloud platforms like Snowflake, Redshift, and BigQuery to help you make better, data driven decisions. Quality and Computer System Validation We provide documented evidence of system performance through specialized CSV services. We also offer process automation (RPA) for regulatory submissions and pharmacovigilance to keep your business audit ready. The IntuitionLabs Method What sets us apart is our structured four step framework: - Assess: We evaluate your AI maturity and data readiness. - Train: we host workshops where your team learns to build real projects. - Support: We provide constant technical help and office hours. - Measure: We track time saved and ROI with regular reviews. Why Choose IntuitionLabs? IntuitionLabs delivers real world results for industry leaders like Scilex Holding Company. We remove the extra complexity from your systems so you can focus on the future of medicine. By combining deep technical skill with pharmaceutical industry knowledge, we help our clients move faster and with more confidence. If you are looking for a professional partner in San Jose for Veeva services or custom pharma AI solutions, IntuitionLabs offers the expert support you need.

SyCo Media

SyCo Media is a digital marketing agency that offers comprehensive services including software development, mobile.

SyCo Media is a digital marketing agency that offers comprehensive services including software development, mobile application development, website development, digital marketing, and corporate branding. They operate as a white label partner providing 360-degree marketing and design solutions, with specific expertise in SEO, PPC services, animation, and complete digital marketing campaigns.

Scalable Path

Scalable Path is a remote developer staffing agency that provides vetted technical talent including software.

Scalable Path is a remote developer staffing agency that provides vetted technical talent including software developers, AI engineers, data scientists, UI/UX designers, and DevOps engineers. They specialize in personalized candidate vetting conducted by senior developers and offer fractional CTO services to match skilled remote professionals with project-specific needs.

SynergisticIT

SynergisticIT specializes in software development services and comprehensive technology upskilling programs.

SynergisticIT specializes in software development services and comprehensive technology upskilling programs. They offer custom development solutions alongside structured training tracks in Java, DevOps, Full Stack development, AI/Data Science, and job placement programs. The company provides both technical staffing services and extensive career development resources including certification preparation, interview training, and skills assessments across multiple technology stacks.

Tech.us

Build Better

Tech.us is a leading software development company headquartered in the US. It offers innovative software solutions using the latest technological advancements, including AI and ML. It serves businesses of all sizes, from Fortune 500 companies to emerging startups across various industries like Retail, Manufacturing, Healthcare, Automotive, Legal, and many more. Our key services include AI development and consultation, custom software development, cloud computing, and mobile app development, etc.

GeekyAnts

Innovate. Collaborate. Build.

Global Tech Consulting & Product Development Firm Innovate. Collaborate. Build GeekyAnts is a global technology consulting and product development company specializing in digital transformation, custom software solutions, and end-to-end app development. With over 15 years of experience, we’ve partnered with 550+ clients including Google, SKF, WeWork, and ICICI Securities, delivering 800+ projects across a wide range of industries. We are passionate about building cutting-edge digital products using modern technologies like React, React Native, Flutter, Next.js, Node.js, Python, and GraphQL. Our approach combines AI integration, open-source innovation, and strong design thinking to deliver scalable, user-centric solutions. What We Do Digital Product Strategy & Consulting UI/UX Design & Design Systems Web & Mobile App Development Generative AI Integration Enterprise Modernization MVP Acceleration DevOps, QA & Testing IoT, Dashboards & Data Visualization Our Highlights 15+ years in the industry 800+ successful projects 50+ open-source tools, including NativeBase (React Native UI library) gluestack (React Open Source Award Winner) Strategic partnerships with Vercel, GitHub, AWS, and Expo Offices in USA (California), India (Bangalore), and UK (London) We assign dedicated teams tailored to your business needs, supporting you from idea to launch—and beyond.

Docusign is a leading provider of electronic signature and Intelligent Agreement Management (IAM) solutions. They offer AI-powered agreement analysis, digital signature capabilities, workflow automation (Maestro), and developer tools for managing contracts throughout their lifecycle. The platform combines e-signature functionality with AI insights to transform agreement processes for businesses.

Grayphite

Grayphite is a software development company specializing in AI-based solutions, custom software development, and emer...

4.7(1)

4.7

1 review

Grayphite is a software development company specializing in AI-based solutions, custom software development, and emerging technologies. They offer end-to-end services including web app development, mobile app development, cloud infrastructure, RAG implementation, customer support bots, process automation, and predictive analytics for SMEs and enterprises.

OutworX is a global technology services provider specializing in web and mobile app development, AI/Gen-AI solutions, e-commerce platform development, quality assurance testing, and HR recruitment outsourcing. Based in California with Microsoft, IBM, and Oracle certifications, they deliver end-to-end technology solutions including custom mobile applications, frictionless parking systems, and generative AI implementations for business transformation.

CitrusBits

AI, XR, and healthcare software experts building secure, scalable digital products and Software as a Medical Device (SaMD) solutions.

CitrusBits is a digital innovation company specializing in custom software development, AI solutions, immersive XR technologies, and Software as a Medical Device (SaMD) platforms. With over 15 years of experience, we help startups, healthcare organizations, and enterprises transform complex ideas into scalable, secure, and high-impact digital products. Our multidisciplinary team designs and develops mobile apps, SaaS platforms, AI-driven systems, and immersive training solutions that improve real-world outcomes. From product strategy and UX design to engineering and deployment, we partner closely with clients to deliver reliable, future-ready technology. At CitrusBits, our focus is on innovation, quality, and building meaningful digital solutions that solve real problems across healthcare, enterprise, and emerging technology industries.