agent
auctioneer
chandler
clerk
colporteur
dealer
drummer
fishmonger
floorwalker
hawker
ironmonger
merchant
peddler
rep
representative
retailer
sales agent
sales engineer
sales force
sales manager
sales personnel
salesclerk
salesgirl
saleslady
salesman
salespeople
salesperson
saleswoman
scalper
selling agent
shop assistant
shop clerk
shopkeeper
store clerk
sutler
ticket scalper
traveller
vender
vendor
wholesaler
merchandiser
booking clerk
cheap-jack
cosmetician
flower girl
fruiterer
huckster
packman
pedlar
pitchman
ticket agent
underseller
bidder
broker
buyer
consumer
customer
developer
employer
holder
investor
lender
manufacturer
owner
producer
publisher
purchase
purchaser
sale
supplier
trader
Heller
Keller
Teller
Weller
bestseller
cellar
dweller
eller
feller
heller
interstellar
lamellar
meller
propeller
reseller
schneller
sheller
speller
stellar
steller
teller