NATIONAL ENERGY SYSTEM OPERATOR LIMITED: tenders, sectors & how to win their contracts

NATIONAL ENERGY SYSTEM OPERATOR LIMITED has published 44 tenders in United Kingdom.

2 are open for bids as of 29 September 2026.

Its buying spans 11 CPV divisions, most often software package and information systems.

Open Tenders

(2)

Closing Soon

NATIONAL ENERGY SYSTEM OPERATOR LIMITED

NESO is seeking a single supplier to provide a range of travel services under one solution - Travel Management System (T...

United Kingdom

£35,000,000

13 days remaining

63516000

View Details

NATIONAL ENERGY SYSTEM OPERATOR LIMITED

Technical Consultancy Framework shall be a multi-lot framework. Works shall be awarded in line Framework Call-Off Proced...

United Kingdom

£72,600,000

96 days remaining

71621000

View Details

Measured from NATIONAL ENERGY SYSTEM OPERATOR LIMITED's own published record — no estimates, no generic advice.

Plan for about 30 days to prepare a bid — that is the median gap between publication and deadline across 7 of their tenders.
They publish about 3.1 tenders a month, measured over 14 months of history.
Half of the tenders where they publish a value are estimated at £3.9m or less.
Most of their buying falls in software package and information systems, business services: law, marketing, consulting, recruitment, printing, security, it services: consulting, software development, internet and support.
Their most frequent suppliers are TLT LLP (2), EFFICIO LIMITED (2), GOWLING WLG (UK) LLP (2) — expect to bid against incumbents who already know this buyer.

Tender	Winner	Tender closed	Contract Value
Operator Console	PROAV LIMITED	18 February 2025	£2.5m
Microsoft Enterprise and On-Premise Infrastructure Licensing...	Insight Direct (UK) Limited	-	£11.8m

Contracts are dated by the tender's closing date — award dates are not published in the source data.