CompanyCore
UK company intelligence
Company profile report
Prepared 28 July 2026

COSTAIN UPSTREAM LIMITED

SC336371 · ltd · incorporated 2008-01-18

1. Company facts

Status
active
Lifecycle
🌳 Mature — Long-running with flat or slow growth. Steady cash, limited upside.
Jurisdiction
scotland
Registered office
Neo House, Riverside, Aberdeen, AB11 7LH, Scotland
SIC codes
71121 — Engineering design activities for industrial process and production
Accounts next due
2027-09-30
Confirmation statement next due
2027-01-26

2. Directors (5 active)

MORRIS, Paul Anthony
director · appointed 2026-05-21 · born 4/1974 (age 52)
MUMFORD, Peter Leslie
director · appointed 2026-05-21 · born 7/1980 (age 46)
TAYLOR, Susannah Natalie
director · appointed 2026-05-21 · born 7/1975 (age 51)
WILLCOCK, Jonathan Kevin
director · appointed 2026-05-21 · born 8/1976 (age 50)
WILLIS, Helen Margaret
director · appointed 2026-05-21 · born 1/1964 (age 62)

3. Shareholders (1 active)

Costain Limited
75-100% shares · 75-100% voting · board control

4. Group structure

Costain Limited is the ultimate parent — holding 75%+ shares. This company sits inside their group.

Costain Limited
Corporate parent · 75-100%

5. Security

2 total charges (0 outstanding, 2 satisfied).

Headline verdict

Opportunity score
77/100 (Strong)
Owner dependency
moderate — 48/100
Red flags
0 high · 1 medium · 0 low