Funded Startups in Guilford
Among the 6 most recent funded entries in Guilford, Connecticut and Guilford, Surrey, the largest disclosed round is Quantum SI’s $50M (2025-07-03), with H…
Among the 6 most recent funded entries in Guilford, Connecticut and Guilford, Surrey, the largest disclosed round is Quantum SI’s $50M (2025-07-03), with Hyperfine’s $40M (2026-03-19) the only other disclosed amount in the same high range; the next-largest disclosed amount is much lower at Themis (2024-12-11) with $9M. Disclosed deal sizes are also uneven: Stake’s 2025-05-12 round is labeled undisclosed, and Cardinality’s 2021-04-15 $3M represents the low end of disclosed amounts.
Dates show a cluster in the last two years, with 4 of the 6 entries occurring between 2024-12-11 and 2026-03-19 (Themis 2024-12-11; Themis 2023-01-23 is outside that cluster; Cardinality 2021-04-15 is older). Geographically, the list splits across two “Guilford” cities/countries (CT vs UK): 3 entries are tied to Guilford, Connecticut (Hyperfine, Quantum SI, Stake) and 3 to Guilford, Surrey, United Kingdom (Themis twice and Cardinality). Sector-wise, “Series Unknown” appears on 4 of 6 rows, alongside 1 Seed (Themis, 2023-01-23) and 1 Venture - Series Unknown (Cardinality, 2021-04-15).
Most recent rounds
6 shownRelated listings
Frequently asked
Do the rounds cluster in time, and what portion falls within the most recent window shown?
4 of the 6 entries fall between 2024-12-11 (Themis) and 2026-03-19 (Hyperfine), indicating a heavy concentration near the top of the date-sorted list. The remaining two are older at 2023-01-23 (Themis, $4M) and 2021-04-15 (Cardinality, $3M).
How does the city/country mix look across the two “Guilford” locations in this list?
Geography is split evenly: 3 entries list Guilford, Connecticut (Hyperfine $40M on 2026-03-19; Quantum SI $50M on 2025-07-03; Stake undisclosed on 2025-05-12), while 3 list Guilford, Surrey, United Kingdom (Themis $9M on 2024-12-11; Themis $4M on 2023-01-23; Cardinality $3M on 2021-04-15).
What stage classification dominates, and are there any stage outliers?
“Series Unknown” labels 4 of 6 rows (Hyperfine 2026-03-19, Quantum SI 2025-07-03, Stake 2025-05-12 as undisclosed, and Themis 2024-12-11), while Themis shows a Seed on 2023-01-23 ($4M) and Cardinality is tagged “Venture - Series Unknown” on 2021-04-15 ($3M).
Are any sectors represented more than once within these 6 rows?
Only Themis repeats at the company level but in different sectors: Financial Services (2024-12-11, $9M) and Technology (2023-01-23, $4M). Otherwise, the remaining single entries each map to a distinct sector (Health Care, Biotechnology, Community and Lifestyle, and AI).
Know which startups just got funded. Every week.
Fresh funding rounds, new companies, and the sectors moving fastest — in your inbox every Monday morning.
Free. Sent every Monday. Unsubscribe anytime.