Since the former England captain with his global celebrity status joined the Galaxy in 2007, Major League Soccer (MLS) has grown significantly and become much better known in the soccer world.
"This sport now has the foundation of becoming much bigger here over the next 10, 20 years," Beckham told reporters at the Home Depot Center on Tuesday, a day after announcing his decision to leave the Galaxy after six seasons with the club.
"I've seen first-hand the new franchises that have come into this league, I've seen the attendances grow to the point where they are competing with baseball and basketball, and I've seen the quality of players that have come into this league.
"We've also seen huge television deals signed and this league is taken very seriously in Europe and different parts of the world now. I am very proud to have been part of that."
Galaxy head coach Bruce Arena described Beckham's influence on the sport in North America in glowing terms.
"He's done more in MLS and for the Galaxy than any of us would have imagined," said Arena. "He's worth a lot more to the league than we ever could have thought.
"He has done wonders for the Galaxy. We have accomplished much on and off the field, and he's done incredible amounts of positive things for MLS. We are now a well known league around the world and I attribute a lot of that to David."
BECKHAM'S GOALS
Asked whether he had achieved all the goals he had initially set for himself in North America, Beckham replied: "It's for other people to decide what my impact has been in this league over the last six years.
"It might have been different 20 years ago but now we have the foundations, we have the owners, we have the stadiums that have been built so the foundations are there for this sport to grow.
"I've seen it grow in the last six years and we all want it to continue to grow. Soccer's potential has no limits in this wonderful country," added the London-born midfielder who plans to continue his playing career elsewhere.
"I always want to win any game, whether it's a game with my kids in the backyard or the MLS Cup final," he said.
"To be able to finish my career as a Galaxy player in my own stadium in a cup final is special enough, but hopefully to win it would finish everything off for me."
"I was actually quite emotional after the game in Seattle because it was the last game in a different stadiu
