Severfield

Severfield plc is the largest structural steel specialist in the UK. The North Yorkshire based company’s major works include The Shard, the Olympic Stadium, and the Tate Modern. Severfield plc is listed on the London Stock Exchange (SFR).

Severfield plc
Public
Traded asLSE: SFR (Formally Severfield-Rowen)
IndustryConstruction
Founded1978
FounderJohn Severs, James Grice, John Waterfield
HeadquartersDalton Airfield Industrial Estate, Dalton, North Yorkshire, YO7 3JN
Key people
  • Alan Dunsmore (CEO)
  • John Dodds (chairman)
ServicesSteel fabrication and erection
Revenue£231m
Number of employees
1,200
WebsiteSeverfield

History

The company was founded in 1978 as a partnership named Severfield-Reeve. John Severs, the Managing Director for many years, left in June 2007. Severfield plc is now run by a board of directors with Alan Dunsmore as the Chief Executive Officer. Severfield plc has developed over four decades through acquisition.

In 1996, Severfield plc took over J N Rowen Ltd of Nottingham. The company consequently changed its name to Severfield-Rowen 1999. In 2001, the company acquired Watson Steel Structures of Bolton from AMEC. In 2005, the group acquired Atlas Ward Structures Ltd. In 2007, it took over Fisher Engineering Ltd of Enniskillen, Northern Ireland. The company ventured overseas in 2008 and began a joint venture with JSW Building Systems Ltd in India. JSW Severfield Structures Ltd, India, officially opened in 2010.

Through 2012 and 2013, Severfield-Rowen Structures merged with Watson Steel Structures to become Severfield-Watson Structures. In 2014, the company unified the individual company names and rebranded to become Severfield plc.

Public company

In July 1988, Severfield plc was listed in the Unlisted Securities Market (which became the Alternative Investment Market in 1995). The company then moved onto the London Stock Exchange on 8 June 1995. It is currently on the FTSE SmallCap Index.

Structure

Severfield plc is headquartered on the former RAF Dalton site near Thirsk, North Yorkshire (UK) The company also has factory sites in Sherburn and Lostock in the UK, Ballinamallard in Northern Ireland and Mumbai in India.

Gateshead Millennium Bridge in 2005

Projects

Bridges
  • Baltic Millennium Bridge
  • East Croydon Station Footbridge
  • Gateshead Millennium Bridge
  • Roden Street Footbridge
  • Thameslink Borough Viaduct Bridges

City centre and retail
  • Asda Retail Store
  • Sainsbury's Store
  • Tesco Store with Car Park, Stourbridge
  • Trinity Centre
  • Victoria Square
  • Westfield Shopping Centre

Commercial offices
  • 5 Broadgate
  • Aldgate Tower
  • Indiabulls Jupiter Mills
  • Mann Island
  • Montevetro
  • Proposed Commercial Tower For Unimark Group & Asian Group
  • Reliance TC 22
  • Sea Containers House
  • The Shard at London Bridge
  • The Co-operative Headquarters
  • 122 Leadenhall Street
  • The Place
  • 60 Threadneedle Street
  • Holborn Viaduct, 60

Education
  • Francis Crick Institute
  • The Rose Bowl
  • University of Strathclyde (TIC)
  • West Cheshire College

Hospitals
  • Etherow Building
  • Hope Hospital
  • New Victoria Hospital
  • Pinderfields Hospital
  • Queen Elizabeth Hospital Birmingham
  • Southmead Hospital Redevelopment
  • Victoria Hospital

Industrial and warehousing
  • ALDI Regional Distribution Centre
  • ASDA Distribution Centre, Avonmouth
  • ASDA Hi-Bay Mezzanine, Warrington
  • Bombardier C Series Building
  • Building 166 (Crane Structure) - Airbus UK
  • Bonded Warehouses (Chivas)
  • Cold Rolling Mill - Phase 2
  • Data Centre –Crown House Technologies
  • Dirft 2
  • Distribution Centre (B&M Retail)
  • DP World
  • Goodman Distribution Unit
  • I54 Wolverhampton Jaguar Land Rover
  • ITC Food Factory
  • Jaguar Land Rover Body in White Plant
  • Jaguar Land Rover Blanker/Tool Room
  • Jaguar Land Rover Modular 1A
  • Jaguar Land Rover Body in White Plant Castle Bromwich
  • Michelin Tyre Factory
  • Pfizer Pharmaceutical
  • Plot 35, Dartford
  • Polestar Factory Unit
  • Project Barley
  • Project Hadrian
  • Project Meadow, Plot 120 Magna Park
  • Project Phoenix (Unilever)
  • Project Vantec, Turbine B Park
  • Quinn Glass Factory
  • Sainsbury's Distribution Centre
  • Regional Distribution Centre (Tesco)
  • TJ Morris
  • TJ Morris Warehouse - Amesbury
  • Townsend Hook Paper Mill
  • Travis Perkins Warehouse Extension
  • Unit 2, Ryton
  • Wyeth Medica

Power and energy
  • Cleveland Energy from Waste Plant
  • ESB Power Station
  • Essex Waste Treatment Facility
  • Runcorn Energy from Waste Plant
  • Sahil & Shah
  • SDP Sellafield – Seascale, Cumbria
  • Sellafield THORP
  • Staythorpe Power Station
  • Suffolk Energy from Waste Plant
  • TG Building for 1 X 160 MW Coal Based Power Project for OPG
  • West Burton Power Station
  • 1200MW CCPP (DGEN)
  • Cardiff Energy from Waste Plant
  • Milton Keynes Waste Facility

Residential and hotels
  • Bankside Apartments
  • Powerscourt Hotel
  • Silver Swan Hotel
  • The Point Village

Transport and car parks
  • Air Traffic Control Tower Mumbai
  • Belfast City Hospital Car Park
  • Birmingham New Street Station
  • Cambridge University Hospital Multi Storey
  • Croydon Centrale Retail Car Park
  • Emirates Air Line Cable Car
  • Excel Exhibition Centre Multi Storey Car Park
  • Heathrow Terminal 5C
  • Heathrow Terminal 2A
  • IEP Maintenance Depot (Rail)
  • Little Ireland Multi Storey Car Park
  • London Bridge Station Canopies
  • Neasden Depot
  • Seven Kings Multi Storey Car Park
  • Spinningfields Car Park
  • Stannifer Car Park
  • Stansted airport extension

Stadia and leisure
  • Arsenal Emirates Stadium
  • ExCeL Exhibition Centre Extension
  • Glasgow 2014 Chris Hoy Arena
  • First Direct Arena, Leeds
  • Main 2012 Olympic Stadium
  • Millennium Dome & O2 Arena Roof
  • New Stage
  • Odyssey Arena
  • Paris Philharmonic Hall (Philharmonie de Paris)
  • Streatham Hub
  • Tate Modern
  • The Convention Centre
  • Titanic Quarter Signature Building
  • Wimbledon Centre Court
gollark: I mean, what do you expect to happen if you do something unsupported and which creates increasingly large problems each time you do it?
gollark: <@151391317740486657> Do you know what "unsupported" means? PotatOS is not designed to be used this way.
gollark: Specifically, 22 bytes for the private key and 21 for the public key on ccecc.py and 25 and 32 on the actual ingame one.
gollark: <@!206233133228490752> Sorry to bother you, but keypairs generated by `ccecc.py` and the ECC library in use in potatOS appear to have different-length private and public keys, which is a problem.EDIT: okay, apparently it's because I've been accidentally using a *different* ECC thing from SMT or something, and it has these parameters instead:```---- Elliptic Curve Arithmetic---- About the Curve Itself-- Field Size: 192 bits-- Field Modulus (p): 65533 * 2^176 + 3-- Equation: x^2 + y^2 = 1 + 108 * x^2 * y^2-- Parameters: Edwards Curve with c = 1, and d = 108-- Curve Order (n): 4 * 1569203598118192102418711808268118358122924911136798015831-- Cofactor (h): 4-- Generator Order (q): 1569203598118192102418711808268118358122924911136798015831---- About the Curve's Security-- Current best attack security: 94.822 bits (Pollard's Rho)-- Rho Security: log2(0.884 * sqrt(q)) = 94.822-- Transfer Security? Yes: p ~= q; k > 20-- Field Discriminant Security? Yes: t = 67602300638727286331433024168; s = 2^2; |D| = 5134296629560551493299993292204775496868940529592107064435 > 2^100-- Rigidity? A little, the parameters are somewhat small.-- XZ/YZ Ladder Security? No: Single coordinate ladders are insecure, so they can't be used.-- Small Subgroup Security? Yes: Secret keys are calculated modulo 4q.-- Invalid Curve Security? Yes: Any point to be multiplied is checked beforehand.-- Invalid Curve Twist Security? No: The curve is not protected against single coordinate ladder attacks, so don't use them.-- Completeness? Yes: The curve is an Edwards Curve with non-square d and square a, so the curve is complete.-- Indistinguishability? No: The curve does not support indistinguishability maps.```so I might just have to ship *two* versions to keep compatibility with old signatures.
gollark: > 2. precompilation to lua bytecode and compressionThis was considered, but the furthest I went was having some programs compressed on disk.

References
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