Portfolio map · Private equity · United States

Oak Investment Partners portfolio map

39 startups Oak Investment Partners has backed in rounds we track, since 1999, grouped by their main sector. Together they have raised $3.5B. The biggest sector is IT Services, with 11 companies.

39startups backed
7sectors
$3.5Braised between them
IT Servicesbiggest sector

Oak Investment Partners's investor profile

IT Services

11

Telecoms

7

Software

6

Internet

5

Fintech

4

Advertising & Adtech

3

Healthtech

3

Segment by segment

IT Services

11 startups · $633M raised

  1. AttivioAttivio is an AI-powered enterprise platform based in Newton/Boston, Massachusetts, founded in 2007.United States$161M
  2. CDNetworksCDNetworks is a leading content delivery network (CDN) based in Singapore, established in 2000.United States$97M
  3. LNLinux NetworxLinux Nework designs and develops Linux-based high performance computing solutions, including computing, storage and visualization.United States$87M
  4. FirstRainFirstRain is a cloud-based business analytics platform that provides real-time, AI-driven market intelligence and customer insights.United States$77M
  5. Staccato CommunicationsDoor, Mr.United States$76M
  6. XiotechX-Io Technologies provides storage solutions for virtualized infrastructure and database management systems.United States$50M
  7. BLBeijing Lingtu SoftwareBeijing Lingtu Software develops geographic information system (GIS) and global positioning system software and services in China.China$30M
  8. Reunion.comReunion.com is a social networking site enabling individuals to keep in touch with their long lost acquaintances and relatives.United States$25M

Telecoms

7 startups · $530M raised

  1. Solarflare CommunicationsSolarflare Communications is a technology company based in Irvine, California, founded in 2001.United States$243M
  2. Kineto WirelessKineto offers internet protocol-based services and solutions for mobile operators.United States$111M
  3. WOWave7 OpticsWave7 Optics develops IP-based optical networks for the delivery of video, voice, and data services.United States$60M
  4. BridgeWave CommunicationsBridgeWave Communications is a wireless technology company based in San Diego, California, founded in 1999.United States$48M
  5. Movik NetworksMovik Networks is a telecommunications company that focuses on intelligent mobile content delivery solutions for network operators.United States$44M
  6. MNMovaz NetworksMovaz Networks provides broadband optical transport systems, wavelength division multiplexing (WDM) equipment, and WDM transport solutions.United States$20M
  7. OntelaOntela provides technology infrastructure to wireless carriers that allows consumers to unlock the photos in their camera phones.United States$4.5M

Software

6 startups · $770M raised

  1. DeemDeem is a technology platform for the business travel industry focusing on travel, car service, and expense solutions.United States$517M
  2. Centric SoftwareCentric Software provides PLM solutions that help businesses in line planning, calendar materials management, and product specifications.United States$96M
  3. MojixMojix is a global leader in item-level intelligence solutions for Manufacturing, Supply Chain and Retail.United States$80M
  4. PhotobucketPhotobucket is an image and video hosting website allowing users to upload, edit and share photos.United States$45M
  5. MimosaMimosa Networks is the leader in next-generation, Hybrid Fiber-Wireless fixed access broadband solutions.United States$20M
  6. TalismaTalisma provides CRM products and services for the finance, banking, education, technology, telecommunications, and other industries.United States$12M

Internet

5 startups · $238M raised

  1. Keep HoldingsKeep Holdings offers products focusing on advertising, commercial email, and e-commerce to enhance the link between consumers and brands.United States$90M
  2. Sphera Optical NetworksSphera Optical Networks, Inc.United States$70M
  3. RazorGatorRazorGator is an online ticket reselling platform for sports, theater and concert tickets, and vacation packages for sporting events.United States$59M
  4. WRWhite Rock NetworksWhite Rock Networks provides transport and switching, Ethernet service delivery, and Internet protocol aggregation solutions for carriers.United States$16M
  5. PProngProng design, manufacture and supplies electronic device accessories.United States$3.1M

Fintech

4 startups · $314M raised

  1. WongaWonga.pl is a Polish online lending company that specializes in providing instant personal loans and installment loans.United Kingdom$158M
  2. FreshBooksFreshBooks is a software company that provides cloud-based accounting software for small and medium-sized businesses.Canada$73M
  3. TxViaTxVia offers an advanced payments processing technology for emerging payments and other transactions in financial services.United States$55M
  4. DDueDilUnited Kingdom$27M

Advertising & Adtech

3 startups · $126M raised

  1. iCrossingWe are a full-service marketing and technology company that seamlessly integrates strategy, data, creativity, and innovation to acUnited Kingdom$108M
  2. ZZumobiMarketers are rapidly increasing their investments in content marketing, but the content being produced is typically not optimizedUnited States$12M
  3. YYclip.comYclip.com an Internet advertising technology and information services company, offers a suite of online marketing and loyalty tools.United States$6.2M

Healthtech

3 startups · $870M raised

  1. CCircleUnited States$772M
  2. American Esoteric LaboratoriesAmerican Esoteric Laboratories (AEL) is a prominent provider of esoteric and clinical laboratory services based in Memphis, Tennessee.United States$70M
  3. MoxieMoxie is a telecommunications company that specializes in outsourcing teleselling and telemarketing services.United States$28M

How this map is made. Every startup here has raised money in a round we track that names Oak Investment Partners as an investor, the first in 1999. Each sits under its main sector, read from its rounds, and each sector shows its best-funded first; sectors with fewer than three companies are left off. Rebuilt nightly; updated 15 November 2026.

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