The data above is taken from the Business Demography dataset from ONS which gives, numbers of ‘births’, ‘deaths’and survivals of businesses in the UK, figures are available down to local authority level. The data is published annually with the latest figures being for 2018, the 2019 data is expected to be released at the end of November 2020.
Business Start-Up rates have fallen over the last 4 years in West Sussex, as they have regionally and nationally.  Start-up rates in West Sussex overall continue to be lower than the regional and national average. Only Crawley has a start up rate higher than the regional rate, but nevertheless is lower than nationally, and Horsham start up rate is the lowest in the county.  The latest data (2018) shows West Sussex does not lie in the top quartile compared with its statistical neighbours. 
December 2019 -update
Bognor Regis Creative Hub
Construction has begun on the two vacant spaces inside Bognor Regis Railway station to create the Bognor Regis Creative Hub, now known as The Track. Completion is expected in April 2020 and will provide 430sq.m. of employment space, with ultrafast broadband connection and sector support activity.  The contracted operators Town Square Spaces have advertised for a Community Manager to manage the space and help build the creative digital business community around the Hub.
Horsham Enterprise Park
The outline planning application for the Horsham Enterprise Park was granted by Horsham District Council in October 2019 (subject to the signing of a section 106 agreement).
Arun and Worthing Growth Deal
The demolition of Burrscrofte, Pond Road, Shoreham-by-Sea has recently been completed.  This former care home was closed for over a decade and demolition removed a security risk and helps make way for a future high quality development scheme that enhances the local conservation area.
Crawley Growth Deal
The Queensway public realm scheme has been completed. 
An additional £820k investment has been secured to extend a bus lane and support transport infrastructure and economy in Manor Royal.
July 2019
The ambition is to move it to the top quartile through actions including the provision of start-up space and support for businesses to start and grow as set out in the West Sussex County Economic Growth Plan and associated Action Plan. Activity to support this in 19/20 includes the launch of the Bognor Regis Creative Digital Hub providing new collaborative workspace including for start-ups, and partnering with the University of Chichester on a new ERDF business support programme which will see specialist and extensive support for business start-ups across the county (the latter is dependent on final approval).
June 2019
Bognor Regis Hub
The work to fit out two vacant spaces within Bognor Regis railway station to form a shared workspace for creative and digital businesses will begin once the agreement around the lease for the spaces is completed with Govia Thameslink Railways and Network Rail.
Next steps:
The appointed hub operators, Town Square Spaces, will be delivering training and support for local creative and digital businesses at venues in Bognor Regis over the coming months, in the lead up to the launch of The Track.
The Track is due to open later this year.
Arun Growth Deal
Work to date includes approval of an outline business case for the Bognor Regis Enterprise Centre within the Enterprise Bognor Regis site, securing funding to deliver Littlehampton public realm improvements and the development of a planning application for the Bognor Regis Pavilion Park project to provide a new park and café in the centre of town.
Next steps:
Work includes the appointment of consultants to progress the River Arun cycle path, launching the Bognor Place Branding project in early summer, feasibility work to be completed for the Bognor Regis Enterprise Centre and the Littlehampton One Public Estate sites in Fitzalan/Maltravers Road.
Adur & Worthing Growth Deal
Options appraisal work for Centenary House has been completed and contracts are currently being prepared for the demolition of Burrscrofte in Pond Road, Shoreham. In other projects, positive feedback was received in a consultation on the Portland Road, Worthing, public realm scheme. Discussions with bus operators have begun looking at rerouting options for the South Street, Worthing, public realm project.
Next steps:
The Shoreham Harbour Delivery Group will progress meetings with key landowners to discuss proposals. Consultants are to be appointed and design work to start on the Worthing Railway Approach scheme. The business case for the construction stage of the Worthing Portland Road scheme will be prepared.
Chichester Growth Deal
We are working closely with Chichester District Council to engage development partners for the Southern Gateway. Local Enterprise Partnership funding has been secured to support the demolition of the redundant Chichester High School building and potential relocation of the hockey pitch, at the school, to allow development of these sites. £50,000 OPE 7 funding has been awarded for Northern Gateway feasibility work and a transport feasibility study has been commissioned for Chichester city centre to include cycle infrastructure.
Next steps:
Options will be progressed for WSCC land within the Southern Gateway Masterplan area. Procurement of contractors to demolish redundant buildings on the school site. A legal agreement with the Academy to enable the relocation of the hockey pitch within the school site. The access strategy for the Northern Gateway will be progressed and development options identified
Horsham Enterprise Park 
An outline planning application is due for determination by Horsham District Council in the summer, based on around 25,000 square metres of high quality business space and housing. The business case is currently being developed for scheme delivery.
Next steps:
Options for the scheme delivery will be presented to the Performance and Finance Select Committee later this year and will be followed by a Leader decision for the preferred option.
Crawley Growth Programme
Construction work has started on the Queensway public realm project in Crawley town centre. The £8.3 million Eastern gateway public realm and highway scheme has been let to tender for design and build contract. The Manor Royal Gateway 1 project was completed in February.
Next steps:
We will be moving to delivery of Eastern gateway, detailed design phase for Station Gateway, Traffic modelling will be concluded for the Three Bridges station public realm schemes and outdoor media units will be installed at Manor Royal Business Park
Mid Sussex Growth Deal
The A2300 design and build contractors have been appointed and a public consultation on the scheme has taken place. £75,000 OPE 7 funding has been secured for site appraisal and master planning for The Brow redevelopment. £10.9 million LGF 3 funding (plus £10.9 million match funding) has been secured for Burgess Hill Place and Connectivity Programme. Negotiations with New River Retail in respect of the library provision in Burgess Hill town centre are almost complete and will help to enable the town centre regeneration.
Next steps:
The Northern Arc planning application is due to be determined in October. Design work to progress the Northern Arc link road and A2300 roundabout. The A2300 full business case to be submitted to the Department for Transport in October. Detailed design and delivery phase of Place and Connectivity schemes.
November 2018
The Business Demography data set gives the numbers of business ‘births’, the number of business ‘deaths’ and the total number of active enterprises which have been in operation during the reference year.  The latest data was released in November 2018, and gives the statistics for 2017.
The number of business births in West Sussex has fallen over the year 2016-2017, as it has nationally and regionally, the county has seen a fall of 8.2% compared with the South East region of 7.1% and England by 9 2%.  The highest drop in the numbers of business births was seen in Horsham at 155 (17.2%) but also Crawley ‘births’ fell by 120 – 18.6% over the last year.  Only Worthing saw an increase in the numbers of start-ups to  20 (+4.3%). Overall this has led to a fall in the overall start-up rate i.e. the numbers of births expressed as a percentage of the total number of active enterprises in that year. 
The start-up rate for West Sussex is lower than the national and regional rate.  Conversely it is evident that the numbers of businesses which have closed has been rising, though has not exceeded the numbers of new starts as it had in 2012, though the gap between the rates in 2017 is closing.  The reasons for a fall in business start-ups may be linked to potential uncertainty related to the UK’s future relationships with the EU.    
As start-up rates have fallen throughout the country the West Sussex position compared with its statistical neighbours remains in Quartile 2.  The ambition is to move it to the top quartile through actions including the provision of start-up space and support for businesses to start and grow as set out in the West Sussex County Economic Growth Plan – High Level Action Plan 2018-2023.

The following table shows the number of start-ups for each local authority area in West Sussex