The regulator says figures are preliminary and are mostly based on information from the Swedish Tax Agency.
The total SEK 6.2bn represents a 5.1% increase compared to the first quarter of 2020; commercial online gaming and betting saw an increase of 7.7% to SEK 3.9bn.
Meanwhile, lottery and slot games increased slightly from SEK 1.1bn to SEK 1.4bn.
But, although Spelinspektionen reported some positives for the Swedish industry, there were a few negative results for a variety of sectors.
State casino games, national lotteries, hall bingo and land-based commercial gaming all experienced drops in revenue.
From January to March, state casino games from Casino Cosmopol brought in no revenue at all since closing down due to Covid-19.
Land-based commercial gaming from restaurant casinos brought in just SEK6m compared to the previous year’s SEK 52m.
During this period, 101 companies had active licences on the Swedish market, 71 of which were licensed for betting or commercial gaming online.
The Authority also provided stats on how many were suspended just after the quarter ended; almost 63,000 people were suspended for gambling.
The amount of people suspended increased by 6% year-on-year and Spelinspektionen says that by mid-May, the number increased to 64,000 people.