In 1915 some minority shareholders of Gualino's failed lumber company brought a lawsuit against him, but he was acquitted for lack of evidence.

In 1910 Gualino had founded the Saint Petersburg Land & Mortgage Company, in partnership with the Anglo-Canadian financier Arthur Grenfell, which had acquired a large amount of land at the mouth of the Neva River in Saint Petersburg for housing development.

The company had borrowed funds to reclaim land and had erected the first buildings at great expense.

This project was suspended at the start of World War I (1914–18) and the property was lost after the Russian Revolution of 1917, as were the estates in Ukraine.

Gualino founded the Società Marittima e Commerciale Italiana in 1914 and the Società di Navigazione Italo-Americana (SNIA) in 1917, two shipping companies.

He reentered the timber and building materials markets, invested in land in Rome, became involved in the manufacture of chemicals and moved into the coal trade, which was very profitable during the war.
Using his shipping companies, Gualino and Giovanni Agnelli became involved in transport of US aid to Europe in 1917.

They invested in two enterprises in the United States; the Marine & Commerce Corporation of America exported coal and the International Shipbuilding Company made motorized vessels.

These companies failed when the war ended.

However, the profits from shipping goods to Italy from the United States during the war were the foundation for Gualino's post-war fortune.

In 1919 Gualino and his wife made a trip to New York City.
In 1915 some minority shareholders of Gualino's failed lumber company brought a lawsuit against him, but he was acquitted for lack of evidence.
In 1910 Gualino had founded the Saint Petersburg Land & Mortgage Company, in partnership with the Anglo-Canadian financier Arthur Grenfell, which had acquired a large amount of land at the mouth of the Neva River in Saint Petersburg for housing development.
The company had borrowed funds to reclaim land and had erected the first buildings at great expense. 
This project was suspended at the start of World War I (1914–18) and the property was lost after the Russian Revolution of 1917, as were the estates in Ukraine.
Gualino founded the Società Marittima e Commerciale Italiana in 1914 and the Società di Navigazione Italo-Americana (SNIA) in 1917, two shipping companies.
He reentered the timber and building materials markets, invested in land in Rome, became involved in the manufacture of chemicals and moved into the coal trade, which was very profitable during the war. Using his shipping companies, Gualino and Giovanni Agnelli became involved in transport of US aid to Europe in 1917.
They invested in two enterprises in the United States; the Marine & Commerce Corporation of America exported coal and the International Shipbuilding Company made motorized vessels.
These companies failed when the war ended.
However, the profits from shipping goods to Italy from the United States during the war were the foundation for Gualino's post-war fortune.
In 1919 Gualino and his wife made a trip to New York City.
Riccardo Gualino