---
title: "BLOCKSIZE LAW LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f6f692d4-bc33-50ab-9dbf-aeb157164f8d
json: https://whiteintel.dev/api/public/dossier/f6f692d4-bc33-50ab-9dbf-aeb157164f8d
identifier: oo:GB-COH-15336478
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BLOCKSIZE LAW LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-15336478`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f6f692d4-bc33-50ab-9dbf-aeb157164f8d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f6f692d4-bc33-50ab-9dbf-aeb157164f8d  

## Ownership & control

### Owners / controllers

- **Ms Anna Tatyana Seccombe** (beneficial owner) — 50% — https://whiteintel.dev/entity/e6e4c157-1d92-5c8c-87c2-0e27b490bebc
- **Ms Kirstin Faye Allen** (beneficial owner) — 50% — https://whiteintel.dev/entity/aba3ea72-7c43-57b0-842d-6004261a269f
- **Ms Anna Tatyana Seccombe** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ddbf52b6-0aff-40ab-95de-067b4df16d0f
- **Ms Kirstin Faye Allen** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e32d74b2-ac9b-44a5-a417-f6e9fb16f36d

### UBO chain (walk to the ultimate owner)

A **4-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `15336478`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2023-12-08
- **Registered office:** 7 Victoria Road, Tamworth, B79 7HS, England
- **SIC:** 69109, 69203, 82990

### Officers

- SECCOMBE, Anna Tatyana — director · British · appointed 2023-12-08
- ALLEN, Kirstin Faye — director · British · appointed 2023-12-08 · resigned 2025-09-23

### Beneficial owners (Persons with Significant Control)

- Ms Anna Tatyana Seccombe — 75–100% shares · individual PSC · England — since 2023-12-08
- Ms Kirstin Faye Allen — 25–50% shares · individual PSC · England — ceased 2025-09-23

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15336478
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15336478

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BLOCKSIZE LAW LIMITED**. Human view: https://whiteintel.dev/entity/f6f692d4-bc33-50ab-9dbf-aeb157164f8d · Structured JSON: https://whiteintel.dev/api/public/dossier/f6f692d4-bc33-50ab-9dbf-aeb157164f8d._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._