Business phone system for engineering services firms in Ohio

How many engineering services firms operate in Ohio

Ohio had 1,641 engineering services firms in 2023, according to Census County Business Patterns (NAICS 541330, Engineering Services). They employed 34,642 people in mid-March and reported $3.4 billion in annual payroll. That is the 13th highest count among the 51 states and DC with published figures. Engineering services firms make up 0.64% of the 255,049 business establishments in the state.

Per 100,000 residents (2024 estimate) Ohio has 13.8 engineering services firms, 25.7% below the national rate of 18.6. The average establishment has 21.1 employees against 19.9 nationally. Payroll per employee is $98,698, 10.2% below the U.S. figure of $109,949.

Engineering services firms by metro area in Ohio

Census published engineering firm counts for 33 metro or micropolitan areas that include part of Ohio. The largest is Cleveland, OH, with 367 establishments. Single-state metro and micropolitan areas account for 76% of the statewide total; the rest are outside any published area or in areas Census suppressed.

Team sizes at engineering services firms in Ohio

47.7% of Ohio's engineering services firms with employees had fewer than five people in March 2023, compared with 53.1% nationally. 62.9% had fewer than ten. At that size the phone is shared, so routing (who rings, when, and what happens after hours) matters more than the number of desk phones.

What engineering services firms in Ohio use the phone for

Engineering firms handle client calls, contractor questions and agency coordination, often while staff are in the field. Routing calls to the right project engineer saves time on every project.

Calls an engineering firm in Ohio might handle in a typical week include:

• The firm calls a client about a schedule.
• A municipal reviewer calls about comments.
• A homeowner calls about a structural inspection.

Business texting for engineering services firms

Firms text site meeting times and document notifications.

Texting from a local number in Ohio requires carrier registration (10DLC), a one-time $49 fee on Callata.

Phone system pricing for a 21-person engineering firm

Engineering services firms in Ohio average 21.1 employees, so the comparison uses a 21-person team. On a per-user plan that headcount sets the bill: $523.95 a month on Ooma Office Pro or $630.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $419.00 a month for 21 users ($99 a month with 5 users included, then $20 per additional user), below both.

Over a year, that is $2,532 less than RingCentral for an engineering firm in Ohio of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.

Area codes in Ohio

Ohio has 15 geographic area codes in service according to NANPA. Callata includes up to 3 local numbers, so an engineering firm can hold a number in more than one of them.

How Callata works for engineering services firms in Ohio

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Ohio is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.