How to Hire a Conference Interpreting Agency

Hiring a conference interpreting agency is fundamentally different from purchasing written document translation. In written translation, a typo or awkward phrasing can be corrected during an editorial review cycle. In live simultaneous conference interpreting, there is no backspace button: words spoken from the stage are broadcast to hundreds of foreign delegates, executives, and journalists in real time with a 3-second delay.

A poorly chosen agency can compromise diplomatic negotiations, trigger confusing corporate PR blunders, or leave your conference with squealing feedback and unassigned booths. This guide provides a step-by-step procurement framework to evaluate agencies, audit quotes, and avoid costly contract surprises.

The 5-Step Agency Procurement Sequence

1. Define Your Exact Language Matrix

Before issuing a Request for Proposal (RFP), clarify your linguistic architecture. Identify your primary floor language (the language spoken by the majority of keynote speakers) and all required target languages. For example:

• Symmetrical Bilingual (e.g. English ↔ Spanish): Requires 1 booth staffed by 2 retour-capable interpreters who can work in both directions.
• Multilateral Multilingual (e.g. English, French, Japanese, Arabic): Requires 3 distinct booths. Determine whether direct language pairs exist or if your event will rely on an English pivot language feed.

2. Issue a Standardized Technical RFP

Never request vague "interpretation quotes" via email. Agencies need explicit technical parameters to produce comparable bids:

• Total daily operating hours (standard portal-to-portal day is 8 hours, including lunch and breaks).
• Exact expected headcount requiring wireless audio receivers per language.
• Delivery mode: On-site physical walk-in booths (ISO 4043) versus Remote Simultaneous Interpretation (RSI).
• Recording and broadcast rights: Will sessions be live-streamed, recorded, or archived for commercial resale?

3. Audit the Staffing Headcount (The 2-Interpreter Rule)

Simultaneous interpretation requires immense cognitive concentration. Blood flow to the brain shifts rapidly, and scientific studies show mental fatigue and error rates rise steeply after 20 to 30 minutes of continuous delivery.

If an agency submits a quote listing only 1 interpreter for a 6-hour conference day, disqualify the bid immediately. Under international conference standards (ISO 23155), working solo past 40 minutes constitutes gross professional negligence.

4. Verify Audio Hardware & ISO Compliance

Ask prospective agencies whether they supply their own hardware or sub-contract to a third-party AV rental house:

• Soundproof Booths: Must comply with ISO 4043:2016 (minimum 24 dB sound isolation, silent forced-air ventilation under 40 dBA, and unobstructed sightlines).
• Inline Acoustic Limiters: Verify that interpreter consoles incorporate hardware limiters that clamp sudden acoustic shock transients under 85 dBA.
• Wireless Transmission: Secure diplomatic and medical events mandate Infrared (IR) line-of-sight radiator panels to prevent signal leakage through walls. Large convention expos benefit from multi-channel UHF radio systems.
• Receiver Buffer Margin: Confirm the agency includes a 10% to 15% spare receiver margin over confirmed RSVPs to handle walk-ins and dead batteries.

5. Designate a Chief Interpreter (Consultant Interpreter)

For multi-booth conferences (3+ languages), ensure the quote includes a designated Chief Interpreter. The Chief Interpreter is your on-site operational lead who coordinates booth rotations, liaises between speakers and linguists, delivers AV run sheets to the venue sound crew, and manages last-minute agenda shifts.

Critical Red Flags on Agency Proposals

Standard Contract Benchmarks & Payment Terms