During a normal Super Bowl, celebs attending the big game wouldn't call for backup, as it were, because the NFL and host city always have tight security teams and measures in place -- but that's different this year. However, Los Angeles has seen a lot of violence building up to game day, so big names in attendance are asking for more protection.

2 Deep Security says they're covering a handful of clients at the game, including Saints linebacker Kwon Alexander. They say each client's getting 3 guards ... 2 inside SoFi Stadium, and one on the outside. They've normally dispatched one bodyguard per celeb at Super Bowls.

Of course, L.A.'s famous for traffic ... so, naturally, Ratpack Worldwide Security says it's getting a spike in specialty transportation requests. A rep tells us their bulletproof rides and black truck fleets are providing the kinda protection celebs want while traveling to and from the game and all the parties this weekend.

Speaking of those parties, Kings Protection tells TMZ ... many of their clients are avoiding the bigger public parties they'd normally attend, and instead, doing smaller ones at hotels and Airbnbs -- but even there, they'll still have protection.