International Sports Management

What International Sports Management does

International Sports Management (ISM) is a UK-based sports management and tournament promotion agency founded in 1989 by Andrew "Chubby" Chandler, a former European Tour professional. The company is headquartered in Cheshire, England, and operates as a private limited company with between 11 and 50 employees. ISM represents a small roster of professional golfers — including Darren Clarke, Matt Wallace, and Sami Valimaki — handling their administration, marketing, sponsorship, and logistics so the athletes can focus on competition. Beyond athlete representation, ISM promotes major DP World Tour events such as The British Masters, Turkish Airlines Open, and The Cyprus Open, generating revenue through event management, sponsorship coordination, and related promotional activities.

The agency also operates Club ISM (formerly known as Class of), a sponsorship and talent development program that connects businesses with emerging professional golfers in exchange for networking and hospitality benefits. Club ISM alumni such as Matt Wallace and Clement Sordet have progressed to the DP World Tour, which the company uses as evidence of pipeline effectiveness. The firm runs a reputation-led go-to-market motion anchored on the founder's personal network and 36+ years of industry relationships rather than on outbound sales or digital marketing channels.

The legal entity's primary web domain (sportism.net) currently serves as a Thai-language online gambling review and affiliate platform promoting third-party betting operators such as BK8, 12Play, WE88, and Dafabet — a material divergence from the core sports management positioning and a signal worth flagging for any diligence exercise. The company's revenue model is not publicly disclosed, and there are no recorded funding rounds, acquisitions, or institutional investors in the available data.

Name

International Sports Management

Legal name

International Sports Management Limited

Website

https://sportism.net

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

International Sports Management is a UK-based boutique sports agency founded in 1989 by former European Tour golfer Andrew "Chubby" Chandler. It represents professional golfers, runs Club ISM emerging-talent sponsorships, and promotes DP World Tour events including The British Masters and Cyprus Open.

Ownership category

akta.pro rank

Product category

Sports Management Services

NAICS

Agents and Managers for Artists, Athletes, Entertainers, and Other Public Figures (7114), Promoters of Performing Arts, Sports, and Similar Events (7113)

SIC

Services-Amusement & Recreation Services (7900)

akta.pro primary industry

Athlete & Talent Representation (Agents, Managers) (MPAKAKAA)

akta.pro secondary industry

Golf Tours & Professional Circuits (MPAKAAAK)

Keywords

• Professional golfer management
• Sports management services
• Tournament promotion services
• Athlete representation services
• Golf event management

Headquarters

HQ city

Cheadle

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Tournament Promotion and Event Management: ISM serves as a promoter for major golf tournaments including The British Masters, Turkish Airlines Open, and The Cyprus Open, generating revenue through event management, sponsorship coordination, and associated promotional activities.
2. Sports Management Services: The company manages professional athletes (Darren Clarke, Matt Wallace, Sami Valimaki), handling their administration, marketing, and logistics to enable them to focus on their game.
3. Club ISM Partnership Program: Club ISM is a sponsorship program that allows businesses to invest in emerging golf talent in exchange for networking opportunities and hospitality experiences.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

International Sports Management is a golfing company that helps professional players with administrative, marketing, and logistical issues, representing golfers such as Darren Clarke, Matt Wallace, and Sami Valimaki. The company also promotes major golf tournaments including The British Masters, Turkish Airlines Open, and The Cyprus Open, and operates Club ISM, a sponsorship initiative supporting emerging golf talent. In addition, ISM runs SportISM.net, an online Thai-language platform that reviews and ranks third-party online gambling and betting operators.

Product overview

International Sports Management operates primarily through SportISM.net, an online gambling review platform that recommends and compares various online betting platforms for Thai users, and Club ISM, a sponsorship initiative for supporting young professional golfers. The company was founded in 1989 by Andrew 'Chubby' Chandler and manages golfing talent including Darren Clarke, Matt Wallace, and Sami Valimaki while organizing golf events such as The British Masters, Turkish Airlines Open, and Cyprus Open.

Differentiator

Problem solved

Functional benefit

Brands

• Club ISM: A youth golf support program that connects businesses with emerging professional golfers for sponsorship opportunities. The program supports promising talents including Mitch Waite, Will Enefer, Curtis Knipes, Haider Hussein, and Jacob Oakley.

Products and services

• Sports Management Services Comprehensive career management for professional golfers, covering administration, marketing, sponsorship coordination, and travel logistics. Clients represented include Darren Clarke, Matt Wallace, and Sami Valimaki.
• Tournament Promotion Services Promotion and management of major professional golf tournaments, including The British Masters, Turkish Airlines Open, and The Cyprus Open, in coordination with the DP World Tour / European Tour and corporate sponsors.

Named customers9 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered flagship and core.

• Darren ClarkeflagshipStrategic or Co-development PartnerProfessional golfer represented by ISM. Clarke is one of ISM's high-profile clients.
• Matt WallaceflagshipStrategic or Co-development PartnerProfessional golfer represented by ISM. Rose to DP World Tour with Club ISM support.
• Sami ValimakicoreStrategic or Co-development PartnerProfessional golfer represented by ISM.
• Club ISM Business PartnerscoreStrategic or Co-development PartnerClub ISM is a sponsorship program allowing businesses to invest in emerging golf talent (Mitch Waite, Will Enefer, Curtis Knipes, Haider Hussein, Jacob Oakley) in exchange for networking and hospitality experiences.
• The British MastersflagshipStrategic or Co-development PartnerMajor European Tour tournament promoted by ISM.
• Turkish Airlines OpenflagshipStrategic or Co-development PartnerMajor European Tour tournament promoted by ISM.
• The Cyprus OpenflagshipStrategic or Co-development PartnerEuropean Tour tournament most recently promoted by ISM.

Scale indicators2 records

Recent moves1 record

Expansion highlights3 records

Broad incumbents

• CAA Sports: CAA Sports is the sports division of Creative Artists Agency, representing athletes across multiple sports and operating a major golf practice. Its scale and integrated representation-plus-marketing model make it a broad incumbent comparable to ISM.
• Sportfive: Sportfive is a global sports business agency offering rights marketing, sponsorship, and athlete representation. It has a dedicated golf practice and operates at scale across multiple sports, comparable to ISM's combined management and tournament promotion activities.
• Lagardère Sports: Lagardère Sports is a large international sports marketing and rights agency active in athlete representation, sponsorship, and event operations. It is a broader incumbent comparable to ISM's tournament promotion and management services.
• IMG (Endeavor): IMG, now part of Endeavor, is the world's largest sports and entertainment management company. It represents a deep roster of athletes across golf, tennis, and other sports, and operates talent management, events, and sponsorship businesses that overlap with ISM's core athlete representation and tournament promotion offerings.

Direct peers

• Wasserman: Wasserman is a major sports marketing and talent management agency representing athletes across multiple sports. Its golf division and broader representation services make it a direct peer to ISM in athlete management.
• Octagon: Octagon is a global sports marketing and athlete representation agency. It represents professional golfers and other athletes, offers sponsorship consulting, and runs event/experience programs, making it a direct comparable to ISM's athlete management and tournament promotion model.
• The Montag Group: The Montag Group is a sports and entertainment management firm with a concentration in golf representation. Its boutique athlete management focus and connection to tour-level players make it a direct comparable to ISM.
• Excel Sports Management: Excel Sports Management is a U.S.-based agency known for representing high-profile golfers and other athletes. Its golfer representation business (including multiple major champions) is closely comparable to ISM's core golf management focus.
• GSE Worldwide: GSE Worldwide is a golf-specialized management and marketing firm that represents PGA Tour, LPGA Tour, and DP World Tour players. It is one of the most direct comparables to ISM in the niche of golf athlete representation and tournament consulting.
• Hambric Sports Management: Hambric Sports Management is a golf-focused management agency that has historically represented notable tour professionals. Its golf-only focus and boutique scale make it a direct peer to ISM's athlete representation business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/teamism
• Facebookfacebook.com/TeamISM
• LinkedInlinkedin.com/company/international-sports-marketing-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about International Sports Management