Top 100 Cross Platform App Development Companies

One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups

9series Inc. is a technology solutions firm based in Ahmedabad, India, focusing on US and European clients. They have more than 100 employees and have been offering web development, mobile app development, and custom software development since 2007. They specialize in small and midmarket clients in the business services, IT, and education industries.

Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.

AKS Interactive Solutions Pvt. Ltd., an application development company, was established in 2009. The firm offers mobile app development, custom software development, ux/ui design, branding, and more and has a midsize team. The firm is located in New Delhi, India.

Logic Square Technologies is a web and app development services provider based out of Kolkata, India. It has 18 employees and has been providing in custom software development, mobile app development, and web development since 2013. They work with small business clients across a number of industries including financial services, business services, and education.

Headquartered in Asheville, N.C., Anthroware is a creative agency founded in 2013. Their team of fewer than 10 offers branding, UX/UI design, custom software development, and web and mobile app development services.

CodeClouds is a web design and PHP development company, founded in 2009. They have offices in Kolkatta, India, Fort Wayne, Ind., Wellington, New Zealand, and Sydney, Australia. They have 287 employees who provide web and mobile app development, digital consulting, CMS, e-commerce, UI and UX design, and branding for small and midmarket businesses.

MUG is a web development firm based in Poznań, Poland. Founded in 2007, their team of 30 serves clients in the education, retail and finance sectors. Services include custom software development and mobile app development.

Vega IT is a midsize software development company. Founded in 2008, the firm is located in Novi Sad, Serbia; New York, New York and London, England. Their services include Custom Software Development, CRM consulting and SI, Mobile App Development, E-Commerce Development, and more.

Daw Software is a software development firm. Located in San Francisco, California, their midsize team specializes in custom software development, Artificial Intelligence, web development, and mobile app development. The firm was founded in 2014.

Bit Complete is a small custom software development firm founded in 2020. Their team specializes in custom software development, web development, mobile app development, and enterprise app modernization. The agency is located in Toronto, Canada.

Established in 2019, Boring Owl is a software development company. The agency provides custom software development, web development, ux/ui design, and mobile app development and has a small team. The agency is in Warszawa, Poland.

Jalasoft is an IT staff augmentation company established in 2001. Headquartered in Cochabamba, Bolivia; Houston, Texas; Envigado, Colombia and La Paz, Bolivia, their large team specializes in IT staff augmentation, Custom Software Development, Web Development, Mobile App Development, and more.

ITERON Technologies is a technology and consulting company based in Basel, Switzerland, with offices in Chennai, India; Canberra, Australia; San Antonio, Texas; and Colombo, Sri Lanka. The company, founded in 2014, has more than 100 employees and provides application management & support, custom software development, mobile app development, web development, e-commerce development, blockchain, and other application development services. ITERON serves small and mid-market companies and institutions in various industries that include automotive, consumer products & services, and education.

Despite recently being founded in 2016, Tyrannosaurus Tech has established itself as a leader in mobile app, web, e-commerce, and custom software development. Their small but capable team of about 10 employees is based in Atlanta, GA and works with small and mid-market businesses.

3rd Digital is a small Ahmedabad, India-based mobile application development company. Founded in 2017, the team specializes in mobile app development, web development, custom software development, ux/ui design, and more.

Alluxi is a web and mobile application development company with about six employees located in Monterrey, Mexico. Since their founding in 2016, they have provided web and mobile app development as well as IT staff augmentation services to predominately small businesses and midmarket firms. Their clients are typically in the advertising and marketing, education, and business services industries. 

RocketBuild is a custom software development firm based in Indianapolis. Founded in 2014, their team of 25 serves clients in the education, real estate, and nonprofit sectors. Services include iOS/Android, React Native and Python development.

Founded in 2013, HYPE4 is a design and development agency based in Warszawa, Poland. The team of 4 provides web development, mobile app development, and UX/UI design services for clients. 

Acropolium is a Ukraine-based web software development firm established in 2003. Acropolium's team of around 40 offers web development and custom software development services.

ImpiCode is a software development company that specializes in mobile, custom software, and web development services. Founded in 2017, they have a team of roughly 6 employees located in Warsaw, Poland.

Founded in 2016, Appello Software is a software design and development company headquartered in Sydney, Australia. They also have other Austrailian offices in Newcastle, Brisbane and Melbourne, and an additional office in London.  Their team of 4 employees specializes in mobile app development, UX/UI design and mobile marketing. They primarily serve consumer products, entertainment and hospitality industries.

genuineq is a software development company based in Bucharest, Romania, and founded in 2018. With over 10 experts, they provide web, e-commerce, and mobile app development solutions to small and mid-market agencies in the fields of business services and more.

Worldteam (formerly Arcade Dev House), a mobile app development firm, is based in Surry Hills, Australia; Hefei, China; San Francisco , California and Seattle, Washington. They specialize in Mobile App Development, UX/UI Design, Custom Software Development, cloud consulting & SI, and more and were founded in 2009.

Founded in 2008, EitBiz - Extrovert Information Technology is a development firm. Their team of around 25 employees is based in Indianapolis, with an additional office in India. They focus on web development and design and custom software development.

Founded in 2018, Webchain is a small software development firm. Their services include custom software development, web development, and IT strategy consulting. The firm is headquartered in Timişoara, Romania.

Platform Devs is a small custom software development firm founded in 2009. Their team specializes in custom software development, enterprise app modernization, IT managed services, web development, and more. The company is based in Plovdiv, Bulgaria.

Web development company Scaylar Technologies is based in Lahore, Pakistan. The small team focuses on web development, custom software development, mobile app development, IT staff augmentation, and more. The agency was established in 2021.

Agency Partner Interactive LLC is a web design and digital marketing agency located in Addison, Tx.  They were founded in 2010. With roughly 33 team members, they provide custom software development, web design, and web development services. Typically, their clients are small businesses or midmarket firms in advertising and marketing, e-commerce, or IT. 

KRUTSCH ia a full-stack UX/UI design agency headquartered in Minneapolis. Founded in 2010, they have a small team of 5 employees who specialize in UX/UI design, mobile app development, and web development. They typically work with small, midmarket, and enterprise businesses in the business, arts, and health care industries.