Shark Punch
San Francisco, US · Founded 2013 · Delaware corporation · 3 known investors
Finnish-American game studio behind Playfield.io, a social discovery and community platform connecting players with games and developers.
Also known as Playfield.io · Shark Punch Inc
Founders & leadership
Shark Punch was founded in 2013 by Jiri Kupiainen.
Board

Investors · 3
Also in the syndicate · 2
Reported raises · per SEC filings
Form D private placements$4M disclosed across 4 of 5 rounds · 2015–2022
▶$752.6KraisedFeb 2022 · 5 investors · Other TechnologyRule 506(b)
- Henric SuuronenDirector
- Anton GauffinDirector
- Panu PaljakkaDirector
- Jiri KupiainenExecutive Officer, Director
- Leo LannenmakiExecutive Officer, Director
- Offering amount
- $2M
- Amount sold
- $752.6K
- First sale
- Jan 2022
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.1MraisedSep 2020 · 9 investors · Other TechnologyRule 506(b)
- Panu PaljakkaDirector
- Jiri KupiainenExecutive Officer, Director
- Henric SuuronenDirector
- Sang Ho ParkDirector
- Leo LnnenmkiExecutive Officer, Director
- Offering amount
- $1.3M
- Amount sold
- $1.1M
- First sale
- Aug 2020
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.5MraisedAug 2017 · 9 investors · Other TechnologyRule 506(b)
- Jiri KupiainenExecutive Officer, Director
- Leo LannenmakiDirector
- Oskari KettunenDirector
- Offering amount
- $1.5M
- Amount sold
- $1.5M
- Proceeds to insiders
- $150K
- First sale
- Aug 2017
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
▶$664.6KraisedFeb 2015 · 3 investors · Other TechnologyRule 506(b)
- Paul HeydonDirector
- Harri ManninenDirector
- Jiri KupiainenExecutive Officer, Director
- Offering amount
- $664.6K
- Amount sold
- $664.6K
- First sale
- Feb 2015
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Shark Punch is a games company with operations in San Francisco, California and Helsinki, Finland. Its main product is Playfield.io, a social discovery and community platform for games that lets players find new titles and lets developers connect directly with their player communities. The platform aggregates game-related content from multiple sources using a proprietary algorithm; the community then votes on, comments on and follows entries, with the highest-rated content surfacing to the top. Personalized, social- and interest-based recommendations were described as in development at the time of the platform's open beta launch.
The company also has a background as an indie game development studio. Its title The Masterplan, a squad-based heist game, was available on Steam Early Access as of early 2015. Bloomberg describes the entity Shark Punch, Inc. as a provider of internet media services.
Founding story
Founders named in press coverage of the company's seed round are Jiri Kupiainen, Leo Lännenmäki, Aarne Hunziker and Harri Manninen. Kupiainen has said the team's mixed industry backgrounds — including experience as an indie game developer — shaped its approach to the game discovery problem.
Business model
Shark Punch operates a two-sided platform serving gamers looking for titles to play and developers seeking to build and retain an audience, alongside its own game development activity.
Traction
At the open beta launch in February 2015, tens of developers had signed up and created pages about their games, and the company said it was in talks with several digital distribution platforms and with larger game development studios.
Latest developments
A venture equity transaction of about $1.45 million dated August 2017 is listed in a venture-capital transaction database as the company's most recent recorded financing activity.
▸Full profile — market position, technology, go-to-market, geography
Market position
Playfield was positioned as an answer to game discovery difficulties in a crowded market, described by its founder as comparable to a combination of Polyvore and Reddit for games and differentiated from Steam's curation system, which was characterized as relying more on game-celebrity curation and user-provided tags.
The company emphasized personalized recommendations based on user interests and social graphs, and enabling developer-player relationships to form early in a game's development rather than only after release.
Technology
Playfield uses a proprietary algorithm that pulls game-related content from different sources for community browsing and voting. Planned recommendation features combine voting data with users' interests and social graphs to deliver personalized suggestions.
Go-to-market
Playfield launched in open beta on the web with mobile planned to follow, initially focusing on indie developers, tens of whom had signed up and created pages for their games. The company reported being in discussions with several digital distribution platforms.
Players seeking new games, and game developers — initially indie studios, with larger development studios also reported as being in discussions at the time of the beta launch.
Geography
Offices reported in San Francisco, California, United States and Helsinki, Finland.
Compiled by commissioned research from 7 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 4
launches, deals, and filingsA venture capital transaction database records a venture equity financing of $1,454,560 dated 28 August 2017, listed as the company's last transaction.
$1.5M source ↗
The San Francisco- and Helsinki-based company raised $1.2 million led by London Venture Partners, investing from its seed fund and AngelList syndicate, with DN Capital, Reaktor Polte and private angel investors participating.
$1.2M source ↗
Paul Heydon, Partner at London Venture Partners, joined Shark Punch's board of directors in conjunction with the seed funding.
Playfield, a community platform for game discovery, entered open beta on the web at playfield.io, with a mobile version planned to follow.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structure▸Research sources · 7
primary sources listed
- Shark Punch Raises $1.2M in Funding - FinSMEsfinsmes.com · web
7 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Shark Punch do?
- Finnish-American game studio behind Playfield.io, a social discovery and community platform connecting players with games and developers.
- Who founded Shark Punch?
- Shark Punch was founded by Jiri Kupiainen in 2013.
- Who are Shark Punch's investors?
- Shark Punch's investors include Play Ventures.
- How much funding has Shark Punch raised?
- Shark Punch has disclosed $4M raised across 4 of its 5 known rounds.
- Where is Shark Punch headquartered?
- Shark Punch is headquartered in San Francisco, US.
