Which UK companies does MARTLET CAPITAL LIMITED hold shares in?

MARTLET CAPITAL LIMITED holds shares in 43 active UK companies, each listed with share class, number of shares and percentage of issued capital at https://openregistry.sophymarine.com/owners/gb/13363008-martlet-capital-limited. Sourced from Companies House CS01 confirmation statements by OpenRegistry, which indexes ownership across Companies House and 26 other national registries.

How many ownership layers sit beneath MARTLET CAPITAL LIMITED?

36 companies sit beneath MARTLET CAPITAL LIMITED's direct holdings, across 4 ownership layers. OpenRegistry reconstructs the chain from members' registers at https://openregistry.sophymarine.com/owners/gb/13363008-martlet-capital-limited.

What share classes does MARTLET CAPITAL LIMITED hold?

Each holding is broken down by share class, showing the percentage of that class and of issued capital by nominal value, at https://openregistry.sophymarine.com/owners/gb/13363008-martlet-capital-limited. Programmatic access is available via MCP at https://openregistry.sophymarine.com/mcp and machine-readable site manifests at https://openregistry.sophymarine.com/llms.txt.

Where does OpenRegistry source MARTLET CAPITAL LIMITED's shareholding data?

From UK Companies House CS01 confirmation statements, with every holding traceable to the exact filing and statement date, cross-checked against the persons-with-significant-control register. The official register record is at https://find-and-update.company-information.service.gov.uk/company/13363008. OpenRegistry by Sophymarine publishes it under https://openregistry.sophymarine.com/terms.

How do I find other UK company owners like MARTLET CAPITAL LIMITED?

MARTLET CAPITAL LIMITED carries the OpenRegistry ID openregistry-gb-13363008. It is ranked #80 of 54,210 corporate shareholders by number of active UK holdings. Related corporate shareholders - those holding shares in the same companies - are linked from https://openregistry.sophymarine.com/owners/gb/13363008-martlet-capital-limited, and the full UK register of 5.6 million entities can be browsed by sector, locality, year or company type at https://openregistry.sophymarine.com/uk-companies.

OpenRegistry

MARTLET CAPITAL LIMITED

UK registered

openregistry-gb-13363008·43 UK shareholdings·4 ownership layers

MARTLET CAPITAL LIMITED is a UK-registered corporate shareholder (Companies House number 13363008) and holds shares in 43 active UK companies, recorded across 63 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 36 companies spanning 4 ownership layers, of which 3 direct holdings are themselves holding companies. Sophymarine OpenRegistry ID openregistry-gb-13363008. It ranks #80 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
43

Share-class positions
63

Identity
UK company 13363008

Jurisdiction
UNITED KINGDOM

Ownership layers below
4

Holdings that are holding companies
3

Company profile

Companies House profile of MARTLET CAPITAL LIMITED

Shareholders

Shares held by MARTLET CAPITAL LIMITED in 43 UK companies

Ownership chain

36 companies across 4 layers beneath MARTLET CAPITAL LIMITED

Official record

Companies House record 13363008

Shareholdings

Every company MARTLET CAPITAL LIMITED appears on as a member, as filed. 43 of 43 are linked to their Companies House profile.

Company held	Status	Accounts	Share class	Shares	% of class	% of capital	Total % of capital	As of
NUNABIO LIMITEDopenregistry-gb-08093593	Active	TOTAL EXEMPTION FULL	A ORDINARY	74,450	24.84%	10.50%	10.50%	2025-06-06
KALIUM HEALTH LTDopenregistry-gb-11534901	Active	TOTAL EXEMPTION FULL	ORDINARY	22,005	7.18%	6.92%	6.92%	2025-07-17
PHARMENABLE THERAPEUTICS LIMITEDopenregistry-gb-10430444	Active	TOTAL EXEMPTION FULL	SERIES A	107,066	10.20%	3.30%	5.61%	2026-02-25
PHARMENABLE THERAPEUTICS LIMITEDopenregistry-gb-10430444	Active	TOTAL EXEMPTION FULL	ORDINARY	75,000	3.89%	2.31%	5.61%	2026-02-25
QKINE LIMITEDopenregistry-gb-10470662	Active	TOTAL EXEMPTION FULL	ORDINARY	229,096	5.44%	5.44%	5.44%	2026-06-01
DOGTOOTH TECHNOLOGIES LIMITEDopenregistry-gb-09079342	Active	TOTAL EXEMPTION FULL	ORDINARY	151,269	6.25%	4.10%	5.44%	2025-06-10
DOGTOOTH TECHNOLOGIES LIMITEDopenregistry-gb-09079342	Active	TOTAL EXEMPTION FULL	A ORDINARY	49,290	3.88%	1.34%	5.44%	2025-06-10
SPOTTA LIMITEDopenregistry-gb-11240610	Active	UNAUDITED ABRIDGED	ORDINARY	23,126	4.51%	2.64%	4.27%	2026-03-06
SPOTTA LIMITEDopenregistry-gb-11240610	Active	UNAUDITED ABRIDGED	PREFERENCE ORDINARY	14,273	3.93%	1.63%	4.27%	2026-03-06
RADIANT MATTER LTDopenregistry-gb-12536048	Active	TOTAL EXEMPTION FULL	ORDINARY	8,291	4.75%	4.05%	4.05%	2026-04-12
ACCELERATOR ADVISORY LIMITED ▼openregistry-gb-12144298	Active	SMALL	ORDINARY	100,000	11.18%	4.02%	4.02%	2025-06-16
SEMARION LTDopenregistry-gb-11534992	Active	TOTAL EXEMPTION FULL	ORDINARY	120,192		3.72%	3.72%	2025-08-28
AIVIVO LTDopenregistry-gb-10694447	Active	TOTAL EXEMPTION FULL	ORDINARY	44,643	3.70%	3.70%	3.70%	2022-03-27
STROLLL LIMITEDopenregistry-gb-11832565	Active	TOTAL EXEMPTION FULL	ORDINARY C	101,010	39.37%	3.53%	3.53%	2026-02-17
ROBOK LIMITEDopenregistry-gb-10945246	Active	TOTAL EXEMPTION FULL	ORDINARY	80,151	3.92%	3.40%	3.40%	2025-03-27
ALLFOCAL OPTICS LIMITEDopenregistry-gb-14037511	Active	TOTAL EXEMPTION FULL	ORDINARY	135,135	3.08%	2.05%	3.25%	2025-04-09
ALLFOCAL OPTICS LIMITEDopenregistry-gb-14037511	Active	TOTAL EXEMPTION FULL	SEED PREFERRED SHARES	78,740	3.58%	1.20%	3.25%	2025-04-09
OCTAIPIPE LIMITEDopenregistry-gb-10489088	Active	TOTAL EXEMPTION FULL	SEED	8,049	8.41%	3.18%	3.18%	2025-12-22
NU QUANTUM LTDopenregistry-gb-11568868	Active	TOTAL EXEMPTION FULL	SEED PREFERRED	61,339	6.18%	1.67%	3.14%	2025-09-13
			A ORDINARY	33,293	6.61%	0.91%
			ORDINARY	20,299	2.46%	0.55%
TRANSPARENTCHOICE LIMITEDopenregistry-gb-08423803	Active	TOTAL EXEMPTION FULL	ORDINARY	867	3.07%	3.07%	3.07%	2022-02-28
TRIPISM LIMITEDopenregistry-gb-08868704	Active	MICRO ENTITY	ORDINARY	4,185	2.65%	2.65%	2.65%	2022-10-24
NOBACZ HEALTHCARE LIMITEDopenregistry-gb-12365096	Active	MICRO ENTITY	A ORDINARY	34,530	13.89%	2.46%	2.46%	2025-11-23
NOBACZ HEALTHCARE LIMITEDopenregistry-gb-12365096	Active	MICRO ENTITY	ORDINARY	0	0.00%	0.00%	2.46%	2025-11-23
ECHION TECHNOLOGIES LTDopenregistry-gb-10680704	Active	SMALL	ORDINARY	107,230	2.82%	2.07%	2.29%	2026-04-04
ECHION TECHNOLOGIES LTDopenregistry-gb-10680704	Active	SMALL	SERIES B-1	11,452	1.28%	0.22%	2.29%	2026-04-04
TECHSPERT.IO LTDopenregistry-gb-09874279	Active	GROUP	SERIES A PREFERRED	6,785	5.29%	1.00%	2.13%	2024-07-11
			SERIES B PREFERRED	5,027	2.45%	0.74%
			ORDINARY	2,695	0.82%	0.40%
MYRTLE SOFTWARE LIMITEDopenregistry-gb-04978210	Active	TOTAL EXEMPTION FULL	A ORDINARY	55,556	5.09%	1.25%	2.09%	2025-11-27
MYRTLE SOFTWARE LIMITEDopenregistry-gb-04978210	Active	TOTAL EXEMPTION FULL	A PREFERRED	37,383	6.70%	0.84%	2.09%	2025-11-27
EXONATE LIMITEDopenregistry-gb-08803638	Active	FULL	ORDINARY	1,437	1.86%	1.74%	1.74%	2025-12-05
PORO TECHNOLOGIES LTDopenregistry-gb-11335936	Active	TOTAL EXEMPTION FULL	ORDINARY	5,714	3.02%	1.00%	1.55%	2025-11-07
PORO TECHNOLOGIES LTDopenregistry-gb-11335936	Active	TOTAL EXEMPTION FULL	SEED PREFERRED	3,136	3.32%	0.55%	1.55%	2025-11-07
SIGNALOID LIMITEDopenregistry-gb-12028829	Active	TOTAL EXEMPTION FULL	A1	21,045	8.36%	1.31%	1.31%	2025-06-11
XAMPLA LTDopenregistry-gb-11637116	Active	SMALL	ORDINARY	67,128	1.92%	0.44%	1.09%	2026-05-01
			SEED 3	41,430	7.09%	0.27%
			SERIES A2	30,605	1.11%	0.20%
			SEED	13,882	1.79%	0.09%
			SEED 2	10,358	1.61%	0.07%
			SERIES A1	1,555	0.02%	0.01%
PATIENTSOURCE LIMITEDopenregistry-gb-08143706	Active	TOTAL EXEMPTION FULL	ORDINARY	20,725	1.08%	1.08%	1.08%	2025-04-04
PARAGRAF LIMITEDopenregistry-gb-09889431	Active	GROUP	ORDINARY	62,914	1.26%	0.61%	0.84%	2026-04-10
PARAGRAF LIMITEDopenregistry-gb-09889431	Active	GROUP	PREFERRED 1	23,691	1.20%	0.23%	0.84%	2026-04-10
UNDO LIMITEDopenregistry-gb-05494036	Active	TOTAL EXEMPTION FULL	ORDINARY	6,618,765	0.43%	0.43%	0.43%	2025-11-20
PERVASID LIMITEDopenregistry-gb-07559981	Active	TOTAL EXEMPTION FULL	ORDINARY	817	0.75%	0.40%	0.40%	2026-03-10
CAMSTENT LIMITEDopenregistry-gb-05889060	Active	MICRO ENTITY	ORDINARY	1,600	0.10%	0.10%	0.10%	2025-07-27
CAMBRIDGE MECHATRONICS LIMITEDopenregistry-gb-03071231	Active	GROUP	ORDINARY	24,020	0.13%	0.05%	0.05%	2025-06-21
IESO DIGITAL HEALTH LIMITEDopenregistry-gb-04063351	Active	GROUP	NEW ORDINARY	2,550		0.03%	0.03%	2025-08-31
IESO DIGITAL HEALTH LIMITEDopenregistry-gb-04063351	Active	GROUP	ORDINARY	0		0.00%	0.03%	2025-08-31
PSYOMICS LTDopenregistry-gb-09470381	Active	SMALL	ORDINARY	5,220				2026-01-19
OCTAGON I/O LTDopenregistry-gb-09329199	Active	TOTAL EXEMPTION FULL	ORDINARY	78,662				2025-11-26
OXFORD SPACE SYSTEMS LIMITEDopenregistry-gb-08683577	Active	MEDIUM	ORDINARY	956,978				2025-09-10
ART DISCOVERY LIMITEDopenregistry-gb-07299752	Active	TOTAL EXEMPTION FULL	C PREFERENCE	0				2024-06-30
INFINITOPES LIMITEDopenregistry-gb-13642685	Active	TOTAL EXEMPTION FULL	SEED	121,951				2024-09-23
PLUMIS LIMITEDopenregistry-gb-06748654	Active	TOTAL EXEMPTION FULL	ORDINARY	441,321				2025-01-22
SYNDICATE ROOM GROUP LTD ▼openregistry-gb-10124624	Active	GROUP	ORDINARY	0				2025-01-15
PLASTOMETREX LTDopenregistry-gb-11620955	Active	TOTAL EXEMPTION FULL	ORDINARY	798				2025-10-11
CENSO BIOTECHNOLOGIES LTD ▼openregistry-gb-SC348293	Active	SMALL	ORDINARY	11,250				2025-09-09
CAMBRIDGE GAN DEVICES LIMITEDopenregistry-gb-10430656	Active	SMALL	ORDINARY 0.0001 GBP	56,000				2025-10-17
CAMBRIDGE GAN DEVICES LIMITEDopenregistry-gb-10430656	Active	SMALL	A ORDINARY 0.0001 GBP	100,307				2025-10-17
PENCIL BIOSCIENCES LIMITEDopenregistry-gb-11660861	Active	SMALL	SEED	7,084				2026-05-24

Ownership structure below these holdings

36 further companies sit beneath this entity’s direct holdings, across 4 layers. Each is linked to its Companies House profile.

ACCELERATOR ADVISORY LIMITEDopenregistry-gb-12144298
- MICROLUB LIMITEDopenregistry-gb-15032046 ORDINARY · 2.83%
- PHOVIR TECHNOLOGIES LIMITEDopenregistry-gb-14756844 A ORDINARY · 2.25%
- OLO ROBOTICS LTDopenregistry-gb-12516316 ORDINARY
SYNDICATE ROOM GROUP LTDopenregistry-gb-10124624
- SYNDICATEROOM TWENTY8 NOMINEES (TT) LIMITEDopenregistry-gb-10230601 ORDINARY
  - PEKAMA LTD.openregistry-gb-09329544 ORDINARY · 8.65%
  - TECHSPERT.IO LTDopenregistry-gb-09874279 ORDINARY · 1.47%
  - MBASO LTDopenregistry-gb-07786534 ORDINARY · 0.86%
  - EMOQUO LIMITEDopenregistry-gb-07352321 ORDINARY · 0.27%
  - REVOLO BIOTHERAPEUTICS LIMITEDopenregistry-gb-07828414 ORDINARY · 0.21%
    - IR 2018 LIMITEDopenregistry-gb-04265329 A ORDINARY / ORDINARY / ORDINARY £1 SHARES
  - WARWICK ACOUSTICS LIMITEDopenregistry-gb-04451674 D ORDINARY · 0.05%
  - CAMBRIDGE NUTRACEUTICALS LIMITEDopenregistry-gb-07322398 A ORDINARY
  - ART-I-CHECK LTDopenregistry-gb-08186152 ORDINARY
  - LEGALBEAGLES GROUP LTDopenregistry-gb-09220332 ORDINARY
  - DEM DX LIMITEDopenregistry-gb-09573122 ORDINARY
  - METRION BIOSCIENCES LTDopenregistry-gb-09669815 ORDINARY
  - RE-VANA THERAPEUTICS LTDopenregistry-gb-NI638333 ORDINARY
- SYNDICATEROOM (TT) NOMINEES LTDopenregistry-gb-09867749 ORDINARY
  - PEKAMA LTD.openregistry-gb-09329544 ORDINARY · 8.42%
  - AUTOLOGYX LTDopenregistry-gb-07756576 ORDINARY · 4.55%
  - MUSIC EDUCATION TECHNOLOGIES LIMITEDopenregistry-gb-08615775 A ORDINARY · 1.48%
  - WARWICK ACOUSTICS LIMITEDopenregistry-gb-04451674 C ORDINARY · 0.90%
  - VAI MILANO UK LIMITEDopenregistry-gb-07930430 ORDINARY · 0.69%
  - RENOVARE FUELS LIMITEDopenregistry-gb-09812770 ORDINARY · 0.48%
    - PROJECT RF-1 LIMITEDopenregistry-gb-12642453 ORDINARY · 76.52%
  - UBIQUTEK LTD.openregistry-gb-08148525 ORDINARY SHARES · 0.26%
  - CIPHER SURGICAL LIMITEDopenregistry-gb-SC378738 ORDINARY · 0.15%
  - ESSENTIA ANALYTICS LTD.openregistry-gb-07164254 A ORDINARY / B ORDINARY / ORDINARY
  - WDTL CONSULTING TWO LIMITEDopenregistry-gb-07887779 ORDINARY · 0.00%
  - AXOL BIOSCIENCE LTDopenregistry-gb-08340031 ORDINARY
  - ZZISH LIMITEDopenregistry-gb-08378462 ORDINARY
  - DOCSAFE LIMITEDopenregistry-gb-08737547 ORDINARY
  - THOUGHTRIVER LIMITEDopenregistry-gb-10007469 ORDINARY
  - ADOREBOARD LIMITEDopenregistry-gb-NI609044 ORDINARY
  - CAMFRIDGE LIMITEDopenregistry-gb-04750292 ORDINARY
CENSO BIOTECHNOLOGIES LTDopenregistry-gb-SC348293
- AXOL BIOSCIENCE LTDopenregistry-gb-08340031 ORDINARY / ORDINARY A

Related company owners

Corporate shareholders that hold shares in the same UK companies as MARTLET CAPITAL LIMITED:

AMADEUS V TECHNOLOGY FUND LPopenregistry-gb-LP019117 37 shared holdings
CAMBRIDGE ENTERPRISE LIMITEDopenregistry-gb-01069886 15 shared holdings
MOLTEN VENTURES VCT PLCopenregistry-gb-03424984 12 shared holdings
EAST INNOVATE LTDopenregistry-gb-13769885 9 shared holdings
MORNINGSIDE VENTURE INVESTMENTS LTD 8 shared holdings
AMADEUS RSEF LPopenregistry-gb-LP015810 7 shared holdings

Other corporate shareholders of comparable size registered in UNITED KINGDOM:

HAMMERSON UK PROPERTIES LIMITEDopenregistry-gb-00298351 44 UK holdings
PROVEN VCT PLCopenregistry-gb-03911323 42 UK holdings
HILCO CAPITAL LIMITEDopenregistry-gb-03944915 42 UK holdings
SSG RECRUITMENT PARTNERSHIPS LTDopenregistry-gb-04834923 43 UK holdings

▼ marks a holding that itself holds shares in further companies, so ownership continues below it.

“% of capital” is the entity’s share of issued capital by nominal value, the correct basis when a company has multiple share classes.

Figures are as filed on each company’s most recent confirmation statement; the “As of” column gives that statement date. Source: Companies House Free Company Data and CS01 confirmation statements. Official record: find-and-update.company-information.service.gov.uk.