CARBON13 CAPITAL LTD

UK registered

Companies House number 11984731·27 UK shareholdings·2 ownership layers

CARBON13 CAPITAL LTD is a UK-registered corporate shareholder (Companies House number 11984731) and holds shares in 27 active UK companies, recorded across 27 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 1 companies spanning 2 ownership layers, of which 1 direct holdings are themselves holding companies. It ranks #225 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
27

Share-class positions
27

Identity
UK company 11984731

Jurisdiction
UNITED KINGDOM

Ownership layers below
2

Holdings that are holding companies
1

Company profile

Companies House profile of CARBON13 CAPITAL LTD

Shareholders

Shares held by CARBON13 CAPITAL LTD in 27 UK companies

Ownership chain

1 companies across 2 layers beneath CARBON13 CAPITAL LTD

Official record

Companies House record 11984731

Shareholdings

Every company CARBON13 CAPITAL LTD appears on as a member, as filed. 27 of 27 are linked to their Companies House profile.

Company held	Status	Accounts	Share class	Shares	% of class	% of capital	Total % of capital	As of
HUBL LOGISTICS LTD08640554	Active	MICRO ENTITY	ORDINARY	85,911	3.66%	3.66%	3.66%	2025-08-06
ELANITI LTD.14214272	Active	MICRO ENTITY	ORDINARY	34,497	3.58%	3.58%	3.58%	2026-01-17
VUNDAHAUS LTD14539656	Active	MICRO ENTITY	ORDINARY	34,364	2.91%	2.91%	2.91%	2025-12-12
DABALOX LTD16226548	Active	NO ACCOUNTS FILED	ORDINARY	46,392	2.77%	2.77%	2.77%	2026-02-02
LAMBDA QUANTECH LTD16242600	Active	TOTAL EXEMPTION FULL	ORDINARY	51,546	3.09%	2.73%	2.73%	2026-05-08
APLEUM TECHNOLOGIES LIMITED14578772	Active	MICRO ENTITY	ORDINARY	51,546	2.73%	2.73%	2.73%	2024-01-18
OPTIMISE-AI LTD14926244	Active	TOTAL EXEMPTION FULL	ORDINARY	34,364	2.96%	2.55%	2.55%	2024-07-08
HAVENWISE LIMITED15643835	Active	MICRO ENTITY	ORDINARY	20,619	3.04%	2.48%	2.48%	2025-04-12
AED ENERGY LTD14531389	Active	MICRO ENTITY	ORDINARY	39,519	2.44%	2.44%	2.44%	2024-04-22
WE ARE NIUM LTD14150518	Active	TOTAL EXEMPTION FULL	ORDINARY	41,953	3.35%	2.28%	2.28%	2025-06-05
BIOZEROC LTD13734605	Active	TOTAL EXEMPTION FULL	ORDINARY	9,278	3.12%	1.89%	1.89%	2024-08-27
PURIFIRE ENERGY LIMITED12323154	Active	TOTAL EXEMPTION FULL	ORDINARY	30,928	2.83%	1.89%	1.89%	2025-12-24
MATERIALS NEXUS LIMITED13057449	Active	SMALL	ORDINARY	3,423	2.49%	1.25%	1.25%	2025-12-01
CIRCULAR11 LTD13802527	Active	TOTAL EXEMPTION FULL	ORDINARY	34,364				2025-12-14
KESTRIX LTD14037742	Active	TOTAL EXEMPTION FULL	ORDINARY	34,482				2026-04-09
SUN BEAR BIOFUTURE LTD14167267	Active	TOTAL EXEMPTION FULL	ORDINARY	51,546				2023-09-04
MORTAR.IO LTD14215756	Active	MICRO ENTITY	ORDINARY	34,364				2025-10-09
FIDATA LIMITED14231045	Active	TOTAL EXEMPTION FULL	ORDINARY	34,284				2025-12-05
FERMENTATION TECHNOLOGIES LTD14357455	Active	MICRO ENTITY	ORDINARY	3,600				2024-12-16
SAMUDRA OCEANS LIMITED ▼14470952	Active	TOTAL EXEMPTION FULL	ORDINARY	34,364				2025-11-07
ADIA THERMAL LTD14499960	Active	MICRO ENTITY	ORDINARY	51,546				2025-10-12
KI HYDROGEN LTD14525660	Active	TOTAL EXEMPTION FULL	ORDINARY	51,546				2025-12-07
CLIMATE-I LTD14980303	Active	MICRO ENTITY	ORDINARY	51,546				2025-07-03
DECARBWORKS LTD15702487	Active	MICRO ENTITY	ORDINARY	51,546				2025-02-18
SHUFFLE ENERGY LIMITED15724867	Active	TOTAL EXEMPTION FULL	A ORDINARY	51,546				2025-05-01
VIRIDYSBIO LTD16202851	Active	NO ACCOUNTS FILED	ORDINARY	51,546				2026-01-22
BLUE NEPTUNE INTERNATIONAL LTD16612308	Active	NO ACCOUNTS FILED	ORDINARY	103,093				2026-06-09

Ownership structure below these holdings

1 further companies sit beneath this entity’s direct holdings, across 2 layers. Each is linked to its Companies House profile.

SAMUDRA OCEANS LIMITED14470952
- SAMUDRA SCOTLAND LIMITEDSC845475 ORDINARY

Related company owners

Corporate shareholders that hold shares in the same UK companies as CARBON13 CAPITAL LTD:

HICO HOLDING PTE. LTD. 3 shared holdings
R&R WRIGHT INVESTMENTS LTD12500690 2 shared holdings
UNIVERSITY COLLEGE CARDIFF CONSULTANTS LIMITED01477909 1 shared holding
SWANSEA INNOVATIONS LIMITED03494913 1 shared holding
DBW INVESTMENTS (3) LIMITED05210122 1 shared holding
GUY'S AND ST THOMAS' FOUNDATION09341980 1 shared holding

Other corporate shareholders of comparable size registered in UNITED KINGDOM:

NORTHUMBERLAND & DURHAM PROPERTY TRUST LIMITED00182763 26 UK holdings
RADIUS LIMITED08260702 27 UK holdings
M7 REAL ESTATE GROUP HOLDINGS LTD08614287 27 UK holdings
NEW ROAD SOLAR LIMITED09940547 27 UK holdings

Every company on this page is identified by its original Companies House registration number, shown beside its name and repeated in the data-company-number attribute of the same element. A shareholder that does not resolve to a registered company carries no number.

▼ 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.