Honest, Data-Driven Comparison

Bid Consultant vs In-House Bid Writer

An honest comparison of costs, win rates, and return on investment. We will tell you when each option makes sense, even when the answer is not us.

Head-to-Head Comparison

FactorBid ConsultantIn-House Bid Writer
Typical Win Rate60-93%20-35%
Annual Cost (10 bids/year)£20,000-£80,000£60,000-£85,000
Sector ExpertiseMulti-sector specialistsLimited to your sector
AvailabilityOn-demand, including urgentFixed hours, holiday cover needed
ScalabilityScale up or down per quarterFixed headcount
Institutional KnowledgeBuilt over time with good briefingDeep from day one
Control & OversightStructured review processDirect, daily management
Speed to StartImmediate (no recruitment)3-6 months to recruit and onboard
Cross-Sector LearningInsights from 20+ sectorsSingle-sector experience
Risk if They LeaveNone (firm, not individual)High (single point of failure)

Figures based on UK market data 2025/26. In-house costs include salary, NI, pension, training, and software. Results may vary by sector and organisation.

When Each Option Makes Sense

Choose a Bid Consultant When:

  • You submit fewer than 20 tenders per year
  • You need specialist sector expertise you lack internally
  • You face urgent deadlines with no internal capacity
  • You want to test bidding for a new sector or framework
  • You need to scale bid output up or down quickly
  • Your current in-house win rate is below 50%
  • You are bidding for high-value contracts (over £1M)

Choose In-House When:

  • You submit 30+ tenders per year consistently
  • Your sector requires deep institutional knowledge
  • You need daily bid management and coordination
  • You have budget for a competitive salary (£55,000+)
  • You can provide career development and progression
  • You operate in a single, highly specialised sector
  • You want someone embedded in your team culture

The Hybrid Approach

Many of our most successful clients combine both. They retain a bid coordinator in-house for day-to-day pipeline management and engage Glaxtons for high-value, complex, or urgent tenders where specialist expertise makes the difference between winning and losing.

Frequently Asked Questions

Bid experience across

Organisations our clients have bid into and won with, and the frameworks we work on every week

  • NHS logo
  • Ministry of Defence logo
  • HM Government logo
  • Ministry of Justice logo
  • Network Rail logo
  • Transport for London logo
  • National Grid logo
  • National Highways logo
  • Sellafield Ltd logo
  • Thames Water logo
  • UK Power Networks logo
  • AWE logo
  • Magnox logo
  • EDF Hinkley Point C logo
  • Leeds City Council logo
  • Crown Commercial Service logo
  • Pagabo logo
  • Crown Commercial Service supplier frameworks logo
  • RM6320 CWAS3
  • RM6390
  • RM6397
  • RM6377
  • NHS SBS
  • G-Cloud
  • DOS
  • ESPO
  • SCAPE
  • ProCure24

Logos identify organisations our clients have bid into or frameworks Glaxtons supports. No endorsement is implied.

Not Sure Which Option Suits You?

We will give you an honest recommendation based on your bidding volume, sectors, and budget. No sales pressure.

Professional Bid Writing Services UK. 93% Success Rate.

Expert bid consultancy and tender writing for government, NHS and CCS frameworks. £500M+ contracts won. Same-day response. 24/7 urgent support.

Get a Free Quote. Same Day Response. ☎ 020 3668 5488
✓ 93% Success Rate ✓ £500M+ Won ✓ 500+ Tenders ✓ 2-Hour Response

Recent Wins

✓ Won £45M NHS FM contract for healthcare provider

✓ Secured £12M MoD framework for defence SME

✓ Won £8M G-Cloud lot for SaaS company