King worked as CEO, CIO, analyst and principal of Loeb King Capital Management between 1994 and 2015.[4][9] He was also a frequent guest on CNBC[10] and Bloomberg Television.[11][12] He was frequently praised for his shareholder activism.[13][14] In the wake of the 2008 economic downturn, Institutional Investor among others remarked on his strong track record and risk management in the midst of the financial crisis.[15][16]
He is a founding partner of Off Road Capital.[9] After leading a financing round for North American Helium Inc. in 2020, Gideon King joined their board of directors.[17]
The CFA Society of New York has praised King for his, "Vast experience in a variety of areas, including global public and private assets, DIP Loans, trade claims, banks debt, arcane debt-linked and equity-linked instruments, public special situations and risk-arbitrage, litigation investments and vehicles, activist investments, SPACs, options, and other derivatives."[18]
The Huffington Post reviewed City Blog writing, "An aurally rich group filled with sophisticated musicality, their newest self-titled album is full of vibrant arrangements, edgy lyrics, and chilled-out vibes."[7] This was echoed by Music Crowns who raved that the record "oozes pure class."[23] Praise was not universal though, with Sputnikmusic saying, "there are a few tracks that should have been left off." The reviewer did go on to say, "despite this, Gideon King and City Blog's self titled debut is jam packed with a little something for every music fan."[26]
In 2018, Gideon King & City Blog released their sophomore album, "Upscale Madhouse" featuring John Scofield, Marc Broussard, Elliott Skinner, Grace Weber, Brendan Fletcher, James Genus, Conrad Sewell, Donny McCaslin, Kate Kay Es, Sonny Step and more.[27] His band Gideon King & City Blog released the EP Love Knot which Goldmine called, "both sophisticated and accessible."[28] Meanwhile Arts Fuse praised the record for, "transcending the acute realities surrounding our lives, instead choosing to strike the listener in the solar plexus with sharply written songs."[29]