Lee & Ko
Lee & Ko is a law firm in South Korea, with 308 professionals and 2,128 lawyers listed on its own site. It stands No. 5 of 10 in South Korea, recognised by 2 independent publishers.
- Jurisdiction
- South Korea
- Standing
- No. 5 of 10 in South Korea
- Founded
- Not stated
- Professionals
- 308
- Offices
- 8
- Recognitions
- 36
- Lawyers on file
- 2,128
- In the news
- 18

Standing in South Korea
In South Korea, 10 of 22 verified firms are placed: 10 placed by recognitions the firm announced from at least two independent publishers, reconciled to one figure per publisher. Firms on file without either are listed in the directory below and are not ranked. No composite score is published for South Korea. The full list for South Korea
Organization
0 practice areas and sectors · 2,128 lawyers on the firm’s siteHow Lee & Ko is organised, read from the titles and practice areas it publishes for each lawyer. A head is named only where the firm states one; otherwise the partner admitted earliest on record stands first and is labelled so.
Leadership
- Won Seok KO
Managing Partner
- Young Su KANG
Managing Partner
- Dong Eun KIM
Managing Partner
- Hoo Gon KIM
Managing Partner
- Hyeon Gil RYOO
managing partner
- Young Jae CHO
President
- Nakyeong KIM
President
- Samuel
Chair
- 權純燁
Chair
- Young Chul SHIN
senior partner
- Kyu Wha LEE
senior partner
- Sang Hoon LEE
senior partner
- Hwan JEONG
senior partner
- 丁桓
senior partner
- Jin Hong KWON
senior partner
- Chang Soo JIN
senior partner
1,476 of Lee & Ko’s profiles print the firm’s whole practice list rather than the person’s own, so they are left out of the groups above; only titles the firm states are shown.
1 lawyers list no practice area on the firm’s site; they appear in the list below.
Lawyers
2,128 on the firm’s own siteNames, titles and practice areas as Lee & Ko publishes them, senior titles first. Each name opens the firm’s own page for that person.
59 ranked individually by the directories, shown first
- Dong Eun KIM主な業務分野Managing Partner · admitted 1994分野別 · All · 産業別 · ConstructionChambers: Eminent Practitioners, Projects & Energy
- Sang Hoon LEE主な業務分野senior partner · admitted 1992分野別 · All · 産業別 · 地域別Chambers: Eminent Practitioners, Employment
- Byong Ki CHUNGpartner · admitted 2009All · Mergers & Acquisitions · Corporate · Antitrust & CompetitionChambers: Up And Coming, Competition/Antitrust
- Eunjai LEE主な業務分野partner · admitted 2004分野別 · All · 産業別 · Insolvency & RestructuringChambers: Eminent Practitioners, Restructuring/Insolvency
- Hayoun CHUN主な業務分野Partner · admitted 2014分野別 · All · 産業別 · IP LitigationChambers: Up And Coming, Intellectual Property · Chambers: Up And Coming, Intellectual Property: Patent Specialists
- Hun KO主な業務分野partner · admitted 1998分野別 · All · 産業別 · ConstructionChambers: Senior Statespeople, Projects & Energy
- Hyesoo KIM主な業務分野Partner · admitted 2014分野別 · All · 産業別 · International TradeChambers: Up And Coming, International Trade
- Jaewoo KWAK主な業務分野partner · admitted 2010分野別 · All · 産業別 · IP LitigationChambers: Up And Coming, Intellectual Property · Chambers: Up And Coming, Intellectual Property: Patent Specialists
- Jinyoung JUNG主な業務分野Partner · admitted 1992分野別 · All · 産業別 · 地域別Chambers: Eminent Practitioners, Insurance · Chambers: Eminent Practitioners, Shipping · Chambers: Eminent Practitioners, Shipping: Finance
- Kwang Bae PARKpartner · admitted 1988All · Start-ups · Digital Health · Digital FinanceChambers: Eminent Practitioners, Technology
- Pyoung Keun SONGpartner · admitted 1990All · Healthcare · Antitrust Litigation · Real EstateChambers: Eminent Practitioners, Dispute Resolution: Litigation
- Sanggon KIMpartner · admitted 1994All · Mergers & Acquisitions · Hostile Takeovers · Defense · Private EquityChambers: Eminent Practitioners, Corporate/M&A
- Tae Joo KIMpartner · admitted 2007All · Mergers & Acquisitions · Anti-corruption · Regulatory ComplianceChambers: Up And Coming, Technology
- Tae Ki GHIL主な業務分野Partner · admitted 1985分野別 · All · 産業別 · IP LitigationChambers: Eminent Practitioners, Dispute Resolution: White-Collar Crime
- Woo Young JUNG主な業務分野partner · admitted 1989分野別 · All · 産業別 · Corporate RestructuringChambers: Senior Statespeople, Banking & Finance · Chambers: Senior Statespeople, Shipping · Chambers: Senior Statespeople, Shipping: Finance
- Yeo Kyoon YOON主な業務分野Partner · admitted 1988分野別 · All · 産業別 · 地域別Chambers: Senior Statespeople, Banking & Finance
- Yong Seok AHNpartner · admitted 1996All · Antitrust & Competition · Mergers & Acquisitions · CorporateChambers: Senior Statespeople, Competition/Antitrust
- Grace YOONcounsel · admitted 2012All · International Arbitration · International Litigation · Outbound InvestmentChambers: Up And Coming, Dispute Resolution: Arbitration
- Yong-Jae CHANG主な業務分野foreign attorney分野別 · All · 産業別 · Structured FinanceChambers: Eminent Practitioners, Banking & Finance
- Hwan JEONGsenior partner · admitted 1995All · Antitrust & Competition · Antitrust Litigation · ESGChambers: Band 1, Competition/Antitrust
- Hyunjoo OH主な業務分野partner · admitted 2019分野別 · All · 産業別 · 地域別Chambers: Band 1, Capital Markets
- Kwang Yul KIM主な業務分野partner · admitted 2001分野別 · All · 産業別 · 地域別Chambers: Band 1, Projects & Energy
- Un Ho KIMpartner · admitted 1994All · IP Litigation · Trade Secret · Company Information Protection · Responding to Unfair CompetitionChambers: Band 1, Intellectual Property · Chambers: Band 1, Intellectual Property: Patent Specialists
- Kichang CHUNGforeign attorney · admitted 2007All · International Trade · International Litigation · International ArbitrationChambers: Band 1, International Trade
Matters and stories in the press
1 written by the newsroomStory · 10 November 2026 · 3 reports cited
Law firms say HMRC and Korea's tax service are scrutinising offshore and corporate structures
Directory placements
17 practice areas · read from the publishers’ tablesWhere the directories place Lee & Ko, practice area by practice area, as each table stands on the publisher’s own site. Each cell links to that table. The columns are the same on every page of this site.
Recognition
36 announcementsWhat other publishers have said, as Lee & Ko reports it on its own site, with the lawyers each announcement names. Each entry links to the page where it was read.
The Legal 500Tier 12026
Antitrust and competition: local firms
“The Legal 500 Asia Pacific 2026: Tier 1, Antitrust and competition: local firms, South Korea”
The Legal 500’s published tableThe Legal 500Tier 12026
Banking and finance: local firms
“The Legal 500 Asia Pacific 2026: Tier 1, Banking and finance: local firms, South Korea”
The Legal 500’s published tableThe Legal 500Tier 12026
Capital markets: local firms
“The Legal 500 Asia Pacific 2026: Tier 1, Capital markets: local firms, South Korea”
The Legal 500’s published tableThe Legal 500Tier 12026
Corporate and M&A: local firms
“The Legal 500 Asia Pacific 2026: Tier 1, Corporate and M&A: local firms, South Korea”
The Legal 500’s published tableThe Legal 500Tier 12026
Dispute resolution: local firms
“The Legal 500 Asia Pacific 2026: Tier 1, Dispute resolution: local firms, South Korea”
The Legal 500’s published tableThe Legal 500Tier 12026
Fintech and financial services regulatory
“The Legal 500 Asia Pacific 2026: Tier 1, Fintech and financial services regulatory, South Korea”
The Legal 500’s published table
In the News
Coverage in which Lee & Ko was named. Each headline links to the publisher.
- [로펌 iN] 법무법인 광장, '공정거래통' 이주현 전 부장검사 합류
Legal Times · 11 Nov 2026
- 광장, 공정거래 수사 전문가 이주현 전 부장검사 영입
법률신문 (The Law Times) · 11 Nov 2026
- 광장, '공정거래 전문가' 이주현 전 부장검사 영입…전담센터 신설
아시아경제 (Asia Economy) · 11 Nov 2026
- '북한이탈청소년 지원' 법무법인 광장, 감사패 받아
Legal Times · 10 Nov 2026
- 법무법인(유) 광장 IP & Technology 그룹, 2026 고객 초청 세미나
법률신문 (The Law Times) · 10 Nov 2026
- [2026 Best Law Firms in Korea] 법무법인 광장
Legal Times · 10 Nov 2026
Sponsored: guides and chapters the firm wrote
Written by the firm. Practice guide chapters are placed with the publishers that carry them, usually for a fee. Listed for the reader’s use; never counted in the firm’s standing.
- Blockchain & Crypto-Assets 2026: South Korea (Law and Practice)
Sponsored · Chapter written for Chambers Global Practice Guides · Wooyoung Choi, Seonghwan Ju, Matt Younghoon Mok, Suhhee Han
- Corporate M&A 2026: South Korea (Law and Practice)
Sponsored · Chapter written for Chambers Global Practice Guides · Junghae Kang, Do Kyeom Kim, Ki Wook Kang, Kyung Chun Kim
- Corporate M&A 2026: South Korea (Trends and Developments)
Sponsored · Chapter written for Chambers Global Practice Guides · Junghae Kang, Do Kyeom Kim, Ki Wook Kang, Kyung Chun Kim
- Corporate Tax 2026: South Korea (Trends and Developments)
Sponsored · Chapter written for Chambers Global Practice Guides · Tom Kwon, Steve Kim, Jung-Ho Ryu, Philje Cho
- Cybersecurity 2026: South Korea (Law and Practice)
Sponsored · Chapter written for Chambers Global Practice Guides · Ji Hoon Kim, Tae Joo Kim, Hwan Kyoung Ko, Jaeyoung Chang
- Cybersecurity 2026: South Korea (Trends and Developments)
Sponsored · Chapter written for Chambers Global Practice Guides · Ji Hoon Kim, Tae Joo Kim, Hwan Kyoung Ko, Jaeyoung Chang
Record
- Jurisdiction
- South Korea
- Founded
- Not stated
- Entity source
- The firm's own website
- Firm’s site read
- 9 Nov 2026
Read from: headcount
On its size, the firm says: “…308 lawyers, as stated on the firm's The Legal 500 profile…”





































