About Signal Lake
Signal Lake is a venture capital firm founded in 1998. It is primarily based out of Westport, United States. As of Jan 2001, Signal Lake has invested in 19 companies. It primarily invests in Series B round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to Enterprise Infrastructure and Telecom. Most recently it participated in the $***** Series B round of Cradle Technologies Overall, Signal Lake portfolio has seen 1 IPO and 7 acquisitions including key companies like Oracle, Vubiquity and TeraGo. A lot of funds co-invest with Signal Lake, with names like Charter Ventures sharing a substantial percentage of its portfolio.Key Metrics
Signal Lake's List of Top Investments
Signal Lake has a portfolio of 19 companies. Their most notable investments include Oracle and Vubiquity.Their portfolio spans across United States, Canada and China. They have invested in Enterprise Applications, Enterprise Infrastructure, Telecom and 4 other sectors, across stages such as Series A, Series B and 1 more. Here is the list of top investments by Signal Lake:1. Oracle
Provider of cloud-based enterprise software solutions for applications, platform, and infrastructure management. It is a technology multinational corporation that offers a wide range of enterprise software products and services, including cloud computing solutions, database management systems, and Java development tools.
Key facts about Oracle
- Founded Year: 1977
- Location: Austin (United States)
- Annual Revenue: $1B+ as on May 31, 2026
- Stage: Public
- Employee Count: 179,061 as on May 31, 2025
- Investors: Glynn Capital, Greyrock Investments and 32 Others
- Latest Funding Round: Conventional Debt, Feb 03, 2025, $*****
- Highlight: Public
2. Vubiquity
VUBIQUITY provides multi platform video services for content owners and service providers. Offers media analytics and intelligence, marketing, creative services, merchandising, content licensing and aggregation, metadata management. Also offers managed services for linear and on-demand viewing that support rental, sell-through, ad-supported and subscription business models. Customers include film studios, television networks, independent producers and MCNs.
Key facts about Vubiquity
- Founded Year: 2006
- Location: Reston (United States)
- Stage: Acquired
- Total Funding till date: $170M
- Employee Count: 370 as on May 31, 2026
- Investors: Arnold Venture Group, Columbia Capital and 7 Others
- Latest Funding Round: Series E, May 30, 2012, $*****
- Highlight: Acquired
3. TeraGo
TeraGo Networks provides internet, colocation, and cloud services to businesses in Canada through its own network. Provides internet access using fibre, wireless, and Ethernet over cable technology. Its voice solutions include SIP trunking and Hosted PBX. Claims to have 4,100 business customers in 46 cities.
Key facts about TeraGo
- Founded Year: 1999
- Location: Thornhill (Canada)
- Stage: Acquired
- Total Funding till date: $2.31M
- Employee Count: 49 as on May 27, 2025
- Investors: Second Alpha, Genesis Park and 2 Others
- Latest Funding Round: Post IPO, Apr 14, 2025, $*****
- Highlight: Acquired
Cradle Technologies designs, develops and manufactures networked video surveillance systems for the video surveillance industry. It offers video surveillance servers for the remote monitoring of multiple locations. The company serves banks, malls, hospitals, shops, and restaurants. The platform allows users to monitor the security of multiple assets, manage multiple business locations, monitor customer service quality, manage the productivity of employees and manage safety and regulatory compliance.
Key facts about Cradle Technologies
- Founded Year: 1998
- Location: Mountain View (United States)
- Stage: Deadpooled
- Total Funding till date: $95.5M
- Employee Count: 27 as on Apr 30, 2026
- Investors: Hercules Capital, Red Hat and 11 Others
- Latest Funding Round: Series D, Dec 27, 2005, $*****
5. Onex
Onex is a Boston-based company that develops the ASICs (application specific integrated circuits) products. It enables development of multi-service platforms for provisioning and bandwidth management for the services in optical networks.
Key facts about Onex
- Founded Year: 2000
- Location: Xiangtan (China)
- Stage: Acquired
- Total Funding till date: $30M
- Investors: Venrock, Vesbridge Partners and 3 Others
- Latest Funding Round: Series B, Nov 10, 2000, $*****
- Highlight: Acquired
Signal Lake's Investments by Stage
Signal Lake has made 1 investment in Series A stage with an average round size of $10M, 1 investment in Series B stage with an average round size of $20M and 1 investment in Unattributed stage.Stage of entry | No. of Investments |
|---|---|
Series A | 1 |
Series B | 1 |
Unattributed | 1 |
Note: We have considered here, only first round of investments
Signal Lake's Investments by Sector
Signal Lake has a diverse portfolio, with companies operating in the High Tech and Semiconductors. Notably, it has invested in 8 Enterprise (B2B) companies, 7 Tech companies, 6 Software companies and at least 3 companies focusing on Tech hardware.Signal Lake's Investments by Geography
Signal Lake has made most investments in United States (2), followed by China where it has made 1 investment.Country | No. of Investments |
|---|---|
United States | 2 |
China | 1 |
Note: We have considered here, only first round of investments
Signal Lake's recent investments
Signal Lake has not made any investment in 2026 so far.Here are the most recent investments by Signal Lake:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Jan 29, 2001 | United States | Series B | 5478 | [+3] | |
Jun 26, 2000 | United States | Unattributed | 1864 | ||
2000 | China | Series A | 6820 | [+1] |
IPOs and Publicly Listed companies in Signal Lake's Portfolio
1 of Signal Lake's portfolio company became public - Oracle. It got listed on the New York Stock Exchange (NYSE), in Mar 1986.Here are Signal Lake's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Mar 14, 1986 | - | - | 8695 |
Acquired companies in Signal Lake's Portfolio
7 companies from Signal Lake's portfolio have been acquired. The most recent acquisition was TeraGo in Jan 2022 by Hut 8 for $*****.Here are Signal Lake's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jan 20, 2022 | - | - | 4075 | |
Jan 30, 2018 | - | - | 1903 | |
Apr 22, 2004 | - | - | 4035 | |
Jan 19, 2004 | - | - | 1315 | |
Nov 13, 2003 | - | - | 1687 |
Co-investors of Signal Lake
Over the past 26 years, 16 investors have co-invested in Signal Lake's portfolio companies. This includes only funds.
- Top Co-investors of Signal Lake: 7 investors entered a company along with Signal Lake. These include investors like Charter Ventures (1 company).
- Invested after Signal Lake: A total of 9 investors have invested in Signal Lake's portfolio after their investments. Top Investors include NeoCarta Ventures (1 company), Prodea (1 company) and East Gate Capital Management (1 company).
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