Charlesworth Author Services and Research Gold answer different questions for an academic author. Charlesworth Author Services is an editing and author-services brand: they polish manuscripts, translate text, and prepare submission-ready files. Research Gold is a systematic review writing service and methodology firm: PhD methodologists run the full PRISMA 2020 pipeline including PROSPERO-registered protocol, multi-database literature search, dual-reviewer screening, RoB 2 or ROBINS-I, meta-analysis where appropriate, and GRADE certainty rating. If you need language editing, Charlesworth Author Services is the right partner. If you need someone to run the systematic review itself, see Research Gold's systematic review writing services.
How Charlesworth Author Services and Research Gold compare at a glance
The honest framing is that the two services solve different problems:
- Charlesworth Author Services is an editing brand built to polish text the author has already written.
- Research Gold is a methodology firm built to run the systematic review from protocol to publish-ready manuscript.
The comparison is therefore not editing-vs-editing or methodology-vs-methodology. It is a question of which problem you currently have. The sections below walk through pricing, turnaround, scope, and the right way to combine the two when both layers matter.
What each service actually does
Charlesworth Author Services is a UK-based author services brand with deep specialism in supporting Chinese, Japanese, and Korean authors publishing in international English-language journals. Their core offering covers English-language editing, scientific translation from Chinese/Japanese/Korean to English, journal selection guidance, illustration polish, and submission support. They partner with multiple society and journal partners across the major publishers and have a strong reputation among authors publishing across Asia-Pacific.
Research Gold's systematic review writing service runs the entire evidence-synthesis pipeline. PhD methodologists draft the PROSPERO protocol, design and execute a multi-database search across MEDLINE, Embase, Cochrane, CINAHL, and Scopus, run dual-reviewer screening in Rayyan or Covidence, extract study data into structured tables, run risk of bias assessment with RoB 2 (randomized) or ROBINS-I (non-randomized), run the meta-analytic synthesis in R (metafor, meta) or Stata with reproducible code, build the GRADE certainty profile, and ship a publish-ready manuscript with all methods, results, tables, and figures.
Where the boundaries fall
Charlesworth does not write systematic reviews. The service is built around polishing finished manuscripts and translating already-written text into English. They do not register protocols on PROSPERO, do not run literature searches across MEDLINE, Embase, or Cochrane, do not screen citations with two independent reviewers, do not extract data, do not run risk of bias assessment, do not run meta-analysis statistics, and do not build evidence-synthesis tables. Their value sits at the language and formatting layer, not the methodology layer.
Pricing transparency
Charlesworth uses per-word tier pricing for editing and translation, with public quote tools on their website. Translation pricing is typically higher than editing alone given the language-pair specialism. Research Gold publishes a starting price of $895 for the systematic review writing service and $750 for the scoping review writing service. Visit the pricing page for the full tier breakdown.
Turnaround time
Charlesworth turnaround runs from 48 hours to 10 working days depending on tier and document length. Translation projects sit at the longer end. Research Gold turnaround for a full systematic review writing service runs 1 week (Gold), 2 to 3 weeks (standard), or 4 to 5 weeks for the deepest tier with meta-analysis and GRADE certainty assessment.
Methodology coverage that only Research Gold provides
The Research Gold methodology stack covers what an editing-only brand cannot:
- PROSPERO registration with a stamped protocol PDF.
- Search strategy in PRESS-checked PubMed, Embase (Emtree), Cochrane CENTRAL, CINAHL, and Scopus.
- Dual-reviewer screening in Rayyan or Covidence with a recorded conflict-resolution log.
- Data extraction into a structured table reviewers can verify.
- Risk of bias assessment with RoB 2, ROBINS-I, or QUADAS-2 depending on study design.
- Meta-analysis in R or Stata with reproducible code and forest plots.
- Heterogeneity diagnostics (I-squared, tau-squared, prediction intervals).
- Publication bias diagnostics (funnel plot, Egger's test, trim-and-fill).
- GRADE certainty profile and a summary of findings table.
- Publish-ready manuscript in IMRAD format with a PRISMA 2020 flow diagram.
If you need any one of these, an editing brand cannot help you.