Funded Startups in Guilford
Among the 6 most recent rounds tied to Guilford, the largest disclosed amount is Quantum SI’s $50M on 2025-07-03.
Among the 6 most recent rounds tied to Guilford, the largest disclosed amount is Quantum SI’s $50M on 2025-07-03. That figure dwarfs the rest of the disclosed amounts, with the next-highest being Themis at $9M (2024-12-11) and several others clustered at $3M–$4M (Hyperfine $3M on 2023-05-18; Themis $4M on 2023-01-23; Cardinality $3M on 2021-04-15). The geography is also split: 3 entries list Guilford, Connecticut (Quantum SI, Stake, Hyperfine), while 3 list Guilford, Surrey, United Kingdom (Themis appears twice and Cardinality once), indicating two distinct local clusters under the same city name. Temporally, the rounds shown span 2021-04-15 through 2025-07-03, with 2 of the 6 entries landing in 2025 (Quantum SI on 2025-07-03 and Stake on 2025-05-12). Sector-wise, “Financial Services,” “Technology,” “Artificial Intelligence (AI),” “Health Care,” “Biotechnology,” and “Community and Lifestyle” each appear in only one row, but “Series Unknown” dominates the classification: 5 of 6 rows are labeled “Series Unknown,” with Stake undisclosed.
Most recent rounds
6 shownRelated listings
Frequently asked
What’s the largest disclosed round in this Guilford set, and how far above the next disclosed amount does it sit?
Quantum SI’s $50M (2025-07-03) is the only disclosed round at that level and dwarfs the next-highest disclosed amount of $9M from Themis (2024-12-11). Multiple other disclosed rounds fall into the $3M–$4M range (Hyperfine $3M on 2023-05-18; Themis $4M on 2023-01-23; Cardinality $3M on 2021-04-15).
Are rounds concentrated in one geography, or split across different Guilfords?
The list splits evenly by the city field: 3 entries are tied to Guilford, Connecticut (Quantum SI, Stake, Hyperfine) and 3 to Guilford, Surrey, United Kingdom (Themis twice, Cardinality once). The repeated company name “Themis” appears in both Guilford, Surrey (2024-12-11 as Financial Services and 2023-01-23 as Technology).
Which portion of the timeline is most recent among these 6 entries?
There are 2 entries in 2025 (Quantum SI on 2025-07-03 and Stake on 2025-05-12). The full window spans 2021-04-15 (Cardinality) through 2025-07-03 (Quantum SI), so the newest rounds account for a sizable share of the displayed set.
How dominant is “Series Unknown” here, and does any stage classification stand out?
5 of 6 rows carry “Series Unknown,” and one row is explicitly “undisclosed” (Stake on 2025-05-12). The only specific non-unknown stage shown is Themis (Technology) labeled “Seed” at $4M on 2023-01-23.
Are there sector clusters, or is the sector mix spread out across one-off categories?
Sector labels are highly dispersed across the 6 entries: “Biotechnology” (Quantum SI), “Community and Lifestyle” (Stake), “Financial Services” (Themis on 2024-12-11), “Health Care” (Hyperfine), “Technology” (Themis on 2023-01-23), and “Artificial Intelligence (AI)” (Cardinality) each appear only once. The only cross-row sector connection is the same company name Themis spanning Financial Services and Technology.
Is there an outlier beyond the size gap, such as an outlier sector or undisclosed amount?
The size outlier is Quantum SI’s $50M (2025-07-03), while the remaining disclosed amounts are $9M or below. A second outlier is the presence of non-disclosed financing data: Stake (2025-05-12) is listed with an undisclosed amount, while all other rows except that one show specific disclosed amounts.
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