EXPERT BID WRITING CONSULTANCY - UK AND GLOBAL
​Welcome to The Sidylle Group Ltd., a specialist bid writing consultancy based in Scotland, delivering expert proposal management and tender writing support across the UK and internationally.​
With over 20 years of experience, we help businesses of all sizes—from start-ups to multinationals, secure major contracts in both the public and private sectors. Whether you're new to tender writing or managing complex, multi-million-pound frameworks, we offer tailored bid support services to help you win.
WHY CLIENTS CHOOSE US
We’re proud of our 90%+ bid win rate, achieved through a combination of strategic insight, APMP-certified expertise and an obsession with excellence. Every bid we write is custom-built to match the requirements of the contracting authority, with persuasive, compliant and high-impact responses. Our UK-wide and international clients rely on us not just to write—but to win.
COMPREHENSIVE BID WRITING & TENDER SUPPORT SERVICES
BID WRITING & MANAGEMENT
Tailored responses that meet buyer expectations and score highly. Full lifecycle support, from bid strategy to final submission.
BID CONTENT LIBRARIES
Reusable, pre-approved content for faster future responses. We'll identify gaps and opportunities to improve your success rate.
CORPORATE WRITING
Polished, accurate and professionally written corporate documents, reports, corporate policies and procedures.
SECTORS WE SUPPORT
From healthcare, construction and social care to technology, education, energy and facilities management, we have supported winning bids worth up to £500 million, with a combined bid value in the billions of pounds. No matter your sector or bidding experience, we bring structure, clarity and confidence to every submission.
Whether you’re bidding locally in Scotland or targeting opportunities across the UK or internationally, we offer flexible, reliable and results-driven bid support services wherever you are.
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We make complex bidding simple and successful.
"The Sidylle Group helped us secure a £15M contract on our first try."
— Bid Manager, UK Construction Firm
Let’s Win Your Next Bid Together
Looking for a bid writing consultancy that delivers results? Partner with The Sidylle Group Ltd. and increase your chances of tender success. Contact us today to discuss your upcoming bid or tender opportunity.
