62/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 78 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Best IT Consultants in Londonderry, NH (2026)
251 IT consultants ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Londonderry: IT Secure, IFR Score 62/100; 5.0★ from 78 Google reviews.
- 11
Most-reviewed: WangPC Computer Service, 400 Google reviews at 4.7★, the most of 251 ranked; ranked #11.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
251 Londonderry IT consultants are ranked here by IFR Score, from nine published factors. 68 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 5.0★ across 251 rated IT firms.
Most of this list also appears on the IT consultants in Manchester ranking. See IT consultants in Manchester
Top 10 IT consultants in Londonderry at a glance
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| Rank | Business | IFR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | IT Secure | 62 | 5.0★ (78) | Bedford, 8 mi away | — | Overall |
| 2 | Direct iT | 61 | 5.0★ (99) | Waltham, 34 mi away | Sat · Evenings | — |
| 3 | PrimiSmarts Technologies | 61 | 5.0★ (15) | Lawrence, 16 mi away | Sat · Sun · Evenings | — |
| 4 | Kilpatrick IT Solutions LLC | 56 | 5.0★ (9) | Merrimack, 6 mi away | — | — |
| 5 | SG Computers | 56 | 5.0★ (23) | Waltham, 32 mi away | — | — |
| 6 | APC Integrated | 56 | 4.9★ (45) | Quincy, 47 mi away | — | — |
| 7 | NorthEast Technology | 55 | 5.0★ (10) | Danvers, 31 mi away | — | — |
| 8 | Harbor IT | 55 | 4.9★ (148) | Salem, 9 mi away | — | — |
| 9 | Netlogic Computer Consulting, LLC | 55 | 5.0★ (42) | Nashua, 9 mi away | — | — |
| 10 | Cinch I.T. | 55 | 4.9★ (114) | Worcester, 43 mi away | Sat · Sun | — |
The 251 best IT consultants in Londonderry, ranked
Ordered by IFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
#2 Direct iT
Based in Waltham, 34 mi away
61/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 99 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Lawrence, 16 mi away
61/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 15 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Merrimack, 6 mi away
56/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#5 SG Computers
Based in Waltham, 32 mi away
56/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 23 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Quincy, 47 mi away
56/100IFR ScoreRanked #6 because of its Google rating and service focus: 4.9★ from 45 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Danvers, 31 mi away
55/100IFR ScoreRanked #7 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
#8 Harbor IT
Based in Salem, 9 mi away
55/100IFR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 148 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Nashua, 9 mi away
55/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 42 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
#10 Cinch I.T.
Based in Worcester, 43 mi away
55/100IFR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 114 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Brookline, 38 mi away
55/100IFR ScoreRanked #11 because of its Google rating and review volume: 4.7★ from 400 Google reviews, the most in Londonderry.
Based on 8 of 9 factors; recency not yet collected.
Based in Lawrence, 15 mi away
55/100IFR ScoreRanked #12 because of its Google rating and review volume: 4.9★ from 212 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#13 Meshworks I.T.
Based in Nashua, 9 mi away
55/100IFR ScoreRanked #13 because of its Google rating and review volume: 5.0★ from 70 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Peabody, 32 mi away
55/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Derry, 8 mi away
55/100IFR ScoreRanked #15 because of its Google rating and review volume: 4.4★ from 166 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Newton, 41 mi away
55/100IFR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 82 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Medford, 33 mi away
55/100IFR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 213 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Manchester, 10 mi away
55/100IFR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 49 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Nashua, 8 mi away
55/100IFR ScoreRanked #19 because of its Google rating and service focus: 3.7★ from 3 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
#20 Marzen Group LLC
Based in Nashua, 8 mi away
55/100IFR ScoreRanked #20 because of its Google rating and service focus: 3.7★ from 3 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
#21 JP WIRELESS
Based in Jamaica Plain, 40 mi away
54/100IFR ScoreRanked #21 because of its Google rating and review volume: 4.7★ from 313 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Westford, 20 mi away
54/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.9★ from 9 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#23 Microreplay Inc
Based in Billerica, 25 mi away
54/100IFR ScoreRanked #23 because of its Google rating and service focus: 4.4★ from 16 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#24 Achieve Networks
Based in Boston, 39 mi away
54/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.0★ from 4 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
#25 Resolve I.T.
Based in Beverly, 33 mi away
54/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.8★ from 16 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
How we ranked Londonderry IT consultants
We scored 251 Londonderry IT consultants on nine factors, weighted as shown. An IT firm is ranked when its service is confirmed and it has 3 or more Google reviews or a claimed profile. An IT firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.
Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Londonderry data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 15% | Number of Google reviews, compared with the most-reviewed IT firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday and 24/7 support | Measured |
| Service focus | 15% | How clearly the firm does this service (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its IT Firms Ranked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The firm links to IT Firms Ranked from its own website with our badge, checked periodically | Measured |
| Client reviews | 10% | Verified client reviews collected by IT Firms Ranked: their rating and how many there are | Measured |
How to choose an IT consultant
- Ask whether the consultant earns commissions or referral fees on products they recommend.
- Check experience with projects like yours, and ask for a sample deliverable.
- Agree the deliverables, timeline and price for each phase before work starts.
- Ask for two or three references from clients of your size and industry, and call them.
- Get the scope, response times and price in writing before you sign, including how you leave and get your data back.
Questions to ask an IT consultant
- Do you receive commissions from any vendor you might recommend?
- What will we receive at the end of the project?
- Who will do the work, and what similar projects have they completed?
- Do you bill hourly, per project or on retainer?
- Will you work alongside our current IT provider?
Terms explained
- MSP (managed service provider)
- A firm that runs a business’s IT for a recurring fee: monitoring, patching, help desk, backups and security tools.
- Co-managed IT
- An arrangement where an outside firm supports an in-house IT person or team, sharing tools and tasks.
- Break-fix
- IT support paid per incident or per hour, with no monthly agreement.
- SLA (service-level agreement)
- The contract terms for response and resolution times, uptime and support hours.
- Help desk
- The support line staff call or email for IT problems.
- RMM
- Remote monitoring and management software that lets an IT firm watch, patch and fix computers remotely.
- vCIO
- A virtual chief information officer: part-time IT strategy and budgeting from an outside firm.
- MSSP
- A managed security service provider: a firm that monitors and manages security tools around the clock.
- EDR / MDR
- Endpoint detection and response software, and the managed service of people watching its alerts (managed detection and response).
- MFA
- Multi-factor authentication: a second proof of identity, such as an app prompt, on top of a password.
- Penetration test
- An authorised, simulated attack on your systems to find weaknesses before criminals do.
- SOC 2
- An independent auditor’s report (AICPA standard) on a service provider’s security controls.
IT consultants in Londonderry: frequently asked questions
Who is the best IT consultant in Londonderry?
By IFR Score, the highest-ranked IT consultant in Londonderry, NH is IT Secure with an IFR Score of 62/100. It has 5.0★ from 78 Google reviews. Direct iT (#2) and PrimiSmarts Technologies (#3) follow. We ranked 251 IT consultants on nine factors, last updated November 9, 2026.
Which IT consultants in Londonderry work on weekends?
68 of 251 ranked IT consultants post Saturday hours and 40 post Sunday hours. The highest-ranked open Saturdays are Direct iT (#2), PrimiSmarts Technologies (#3) and Cinch I.T. (#10). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Londonderry IT consultants have?
The median Google rating among 251 rated IT consultants in Londonderry is 5.0★, with a median of 13 reviews. WangPC Computer Service has the most, 400 reviews, and ranks #11. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ITFirmsRanked rank IT consultants?
Each IT consultant gets a 0–100 IFR Score from nine published factors, led by reputation (25%), review volume (15%), service focus (15%) and recency (10%). An IT firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only IT firms with a confirmed service and 3 or more reviews, or a claimed profile, are ranked.
Do IT consultants outside Londonderry count in this ranking?
Yes, if they are within 50 mi of the Londonderry city center, our service radius for IT consultants. Each listing shows where the IT firm is based and how far away it is. Proximity is 5% of the IFR Score, so a nearby IT firm gets a small edge.
Can IT consultants pay to rank higher on ITFirmsRanked?
No. The IFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured IT firms may appear above the list, labelled Sponsored and showing their honest rank.
What does an IT consultant do?
IT consultants advise on technology plans and projects: system selection, cloud migrations, budgets, security and compliance programmes, often as a part-time or virtual CIO.
How are it consultants in Londonderry ranked?
By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does IT consulting, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.
When does a business need an IT consultant rather than an IT provider?
For decisions and projects rather than day-to-day support: choosing a new system, planning a cloud move, setting an IT budget, preparing for an audit or reviewing an existing IT provider.
How do IT consultants charge?
By the hour, by the project or on a monthly retainer for ongoing virtual CIO work. Ask for a fixed price or a capped estimate on defined projects.
Update log for Londonderry
- November 2026: IFR Scores recalculated for 251 IT consultants serving Londonderry.
- November 2026: 2 duplicate listings merged.
More IT consultants and Londonderry pages
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