Top by categoryEvery category ranked by need: services, software and firms.
Top software by featureThe best tools for one job, across every software category.
Top companies by countryThe leading B2B firms in each country, category by category.
Popular software rankings
Top Inventory Management Software
Top Supplier Management Software
Top Fleet Management Software
Top Cloud Storage Backup Software
Top Master Data Management Software
Top Document Storage Software
Top 3D Modeling Software
Top Compliance Tracking Software
See all popular software rankings
Popular category rankings
Top Software Development Companies
Top Digital Marketing Companies
Top App Development Companies
Top Web Design Agencies
Top Accounting Firms
Top Recruitment Agencies
Top Advertising Companies
Top Design Agencies
See all popular category rankings
Top companies by country
Top companies in the UK
Top companies in the USA
Top companies in India
Top companies in Canada
Top companies in Australia
Top companies in Germany
Top companies in the UAE
Top companies in Pakistan
See all top companies by country
All rankings All categories How we rank

App Development Company

Grossum

Outsourced web and mobile development company building SaaS, high-load systems and MVPs

Visit Website Get a quoteRequest a demo / quote Write a Review

Own this listing? Claim it

Grossum cover

About Grossum

Grossum is an outsourcing company for web and mobile development and part of the App Solutions development group. It has worked on high-load and scalable projects and on secure SaaS products, and it covers the full product life cycle from architecture to operations.

What Grossum offers

Web development — custom web applications, including PHP and Symfony work.
Mobile development — mobile apps, mobile sites and responsive websites.
Full-cycle product development — architecture, development and QA for MVPs and larger business systems.
DevOps support — round-the-clock DevOps for live products.
Market and promotion planning — market study, data analysis and a marketing plan for a new product.

Who it works with

Grossum builds apps for founders and businesses; one named client project is the Authenpic app, for which it also helped with launch.

Key facts

Group: part of App Solutions
Focus: outsourced web and mobile development

Profile written by TrustList from the business's own published information, Sep 2026.

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

Request a demo or quote from Grossum

Reviews

Write the first review of Grossum

Used it? Your experience helps other buyers decide.

Questions & answers

No questions yet. Be the first to ask about Grossum.

Grossum alternatives

Similar listings buyers compare against this one.

Compare side by side

iSkylar Technologies

Indian software firm building AI systems, web and mobile apps, and supplying augmented engineering teams

Compare

Fulcrum

Product engineering studio building MVPs, dedicated teams and AI systems for startups and growing software companies

Compare

CookieDev

Mobile and web app developer building iOS, Android and server software for new product ideas

Compare

Elysian Software

Romanian software firm building bespoke applications and warehouse control software for automated logistics sites

Compare

GrownApps

Software studio that rescues, rebuilds and scales SaaS products for startups and scaleups in Europe and the US

Compare

Hexagon IT Solutions

Custom software firm replacing spreadsheets with CRM, ERP, mobile apps and API integrations for growing companies

Compare

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.